| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 333134000 | Utilizing long line element | 73 |
| 20080204164 | Negative-Refraction Metamaterials Using Continuous Metallic Grids Over Ground for Controlling and Guiding Electromagnetic Radiation - For the cost effective implementation of negative-index refraction, an anisotropic hyperbolic planar metamaterial comprising a first set of substantially parallel, unloaded and coplanar transmission lines, said first set being spaced with a periodicity dy a second set of substantially parallel, unloaded and coplanar transmission lines, said second set being spaced with a periodicity dx, further being coplanar and substantially orthogonal with said first set of transmission lines, wherein the periodicities of said first set and second set of transmission lines being governed by the relationship βx(fr)dx+βy(fr)dy=2π, where: βx and βy are the intrinsic propagation constants of electromagnetic waves of frequency fr propagating along the first and second set of transmission lines, respectively. | 08-28-2008 |
| 20080231391 | DIELECTRIC DEVICE - A dielectric device includes a dielectric substrate and a resonator unit. The resonator unit includes first and second holes. The first hole opens on a first surface of the dielectric substrate and extends toward a second surface opposite to the first surface. A first internal conductor is provided inside the first hole. The second hole opens on a third surface of the dielectric substrate, extends toward a fourth surface opposite to the third surface, and is connected to the first hole. A second internal conductor is provided inside the second hole with one end connected to an external conductor film on the third surface and the other end connected to the first internal conductor. The first hole has a recess opposed to a junction with the second hole. The first internal conductor in the recess is opposed to the external conductor film on the fourth surface across the dielectric substrate. | 09-25-2008 |
| 20080272855 | LAMINATE TYPE BAND PASS FILTER AND DIPLEXER USING THE SAME - It is possible to generate an additionally attenuation pole in a laminate type band pass filter without adding an attenuation circuit and improve the attenuation characteristics of the laminate type band pass filter by independently controlling the frequencies of the attenuation poles. A diplexer is realized by using at least such a filter. The laminate type band pass filter includes a plurality of first resonators adapted to resonate in a predetermined pass band and arranged in a laminate, the first resonators being mutually electromagnetic field coupled, each of the first resonators having a first inductor conductor, a second inductor conductor and a conductor to be capacitive-coupled to a grounding conductor, the second inductor conductor and the conductor to be capacitive-coupled to the grounding conductor forming a second serial resonator in each of the first resonators, the notch frequency of the second serial resonator being set in a frequency band higher than the resonance frequency band of the first resonator. | 11-06-2008 |
| 20090051463 | SPLITTER/COMBINER CIRCUIT - A circuit for combining/splitting at least two RF signals comprising: (a) at least two or more transmission portions coupled at an intersection, the intersection having a common port for inputting or outputting a combination of the at least two RF signals; (b) each transmission portion extending from the intersection to a port for inputting or outputting a selection of signals from the combination, and comprising at least one set of intersecting transmission lines; (c) each set of intersecting transmission lines rejecting a particular signal of the combination; and (d) each intersecting transmission line of a given set having a length of about an odd multiple of a quarter wavelength of the particular signal which is rejected by the given set. | 02-26-2009 |
| 20090231059 | ANTENNA FEED COPLING STRUCTURE OF A DUPLEXER - An antenna feed coupling structure of a duplexer is disclosed to include a base defining a detoured resonance cavity and a T-shaped feed-in cavity perpendicularly intersecting the resonance cavity and a signal input port in connection with the head of the feed-in cavity, a cover closing the base, and adjustment rods mounted in the base and suspending in the resonance cavity and the feed-in cavity. The adjustment rods include two feed-in adjustment rods and two coupling structure adjustment rods suspending in the intersected area between the resonance cavity and the feed-in cavity and respectively kept in horizontal and in vertical relative to the resonance cavity and rotatable inwards and outwards to adjust the feed-in amount and coupling structure amount of the antenna feed coupling structure respectively. | 09-17-2009 |
| 20100123528 | Balanced-output triplexer - A balanced-output triplexer includes: a first filter provided between an input terminal and a pair of first balanced output terminals; a second filter provided between the input terminal and a pair of second balanced output terminals; and a third filter provided between the input terminal and a pair of third balanced output terminals. Each of the first to third filters has a pair of output resonators that are interdigital-coupled to each other and connected to the corresponding pair of balanced output terminals. | 05-20-2010 |
| 20100127795 | Multiband Filter - A band-stop filter is proposed which is constructed on a multilayered substrate and consists of a parallel circuit comprising a bandpass filter and a high-pass filter. The two filters are at least partly realized in the form of LC-elements integrated into the substrate. Further circuit components can be arranged as discrete components on the substrate. In the filter branch having the bandpass filter, an electroacoustic resonator is arranged in a transverse branch to ground. By means of the filter, a wide stop band is obtained, while the passband or passbands can comprise a plurality of radio bands. | 05-27-2010 |
| 20100148889 | HIGH-FREQUENCY COMPONENT HAVING LOW DIELECTRIC LOSSES - The present invention relates to a high-frequency component with an internal conductor structure ( | 06-17-2010 |
| 20100156555 | FREQUENCY AGILE VARIABLE BANDWIDTH RADIO FREQUENCY CAVITY RESONATOR - A radio frequency (RF) cavity resonator having a resonator chamber and one or more RF coupling loop assemblies is presented. The RF coupling loop assembly has a connector with a first connector interface coupled to an inner conductor and a second connector interface coupled to an outer conductor, the first and second connector interfaces forming a pair when mated, the second connector interface rotatable about a collinear axis of the connector and the first connector interface not rotatable about the collinear axis of the connector; a wire loop coupler; and a bandwidth selection element at least partially coupled to the coupling loop assembly. In response to changing the bandwidth selection setting while the RF cavity resonator is operational, the wire loop changes orientation about the collinear axis of the connector and causes the RF resonator chamber to output an RF carrier signal having a bandwidth of the new bandwidth setting. | 06-24-2010 |
| 20100171566 | SPLITTER/COMBINER CIRCUIT - A circuit for combining/splitting first and second RF signals having different wavelengths of x and y, respectively, the circuit comprising: (a) first and second transmission portions coupled at an intersection, the first transmission portion comprising at least two intersecting transmission lines, each having a length which is an odd multiple of about ¼y, the second transmission portion comprising at least two intersecting transmission lines, each having a length which is an odd multiple of about ¼x; and (b) first, second and third ports, the first port located at the first transmission portion, the second port located at the intersection of the first and second transmission portions, and the third port being located at the second transmission portion, the first and second ports being electrically coupled, and the second and third ports being electrically coupled. | 07-08-2010 |
| 20100188167 | KU-BAND DIPLEXER - A compact Ku band microwave diplexer configured as a three port surface mount component on a miniature alumina substrate. Input signals occurring at a common port having frequencies within a first pass band are passed to a second port while being isolated from signals occurring at a third port. Signals occurring at the third port are passed to the common port while being isolated from the signals at the second port. A microstrip dual spur line filter is used combined with open circuit stubs to provide enhanced second harmonic suppression on the transmit side, while using a coupled line microstrip filter on the receive side. This approach allows for compact size and automated component assembly through pick and place and reflow manufacturing techniques. | 07-29-2010 |
| 20100207705 | BASE STATION RF DUPLEXER, RF MODULE, AND RF SYSTEM - The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability. | 08-19-2010 |
| 20100231323 | Ceramic monoblock filter with inductive direct-coupling and quadruplet cross-coupling - A ceramic monoblock filter including a direct signal path defined by at least four spaced-apart through-hole resonators in combination with ground bars extending between the through-hole resonators and a separate quadruplet cross-coupling alternate signal path defined by two conductive pads located adjacent the first and fourth ones of the through-hole resonators respectively and a separate external bridge member which interconnects and couples the two pads. The bridge member is preferably made of a material having a lower dielectric constant than the block of the filter. In one embodiment, the filter is a monoblock duplexer filter comprising respective transmit and receive sections each including at least four of the through-hole resonators, the ground bars, the two pads, and the bridge member. In the duplexer embodiment, additional through-hole resonators may define shunt zeros. | 09-16-2010 |
| 20100253448 | Diplexer, and Wireless Communication Module and Wireless Communication Apparatus Using the Same - A diplexer that can demultiplex and multiplex two signals having wide frequency bands, and a wireless communication module and a wireless communication apparatus using the same, are provided. A diplexer has a multilayer body including a first interlayer, a second interlayer and a third interlayer. On the first interlayer, first resonant electrodes are disposed in an interdigital form. On the second interlayer, a plurality of second resonant electrodes are disposed in an interdigital form. On the third interlayer, there are disposed an input coupling electrode that faces the input-stage first resonant electrode and the input-stage second resonant electrode in an interdigital form, a first output coupling electrode that faces the output-stage first resonant electrode in an interdigital form, and a second output coupling electrode that faces the output-stage second resonant electrode. | 10-07-2010 |
| 20110006856 | MULTI-MODE RESONANT FILTER - Various multi-mode resonant filters including a housing having a cavity, are provided. The multi-mode resonant filters include a Dielectric Resonant (DR) element received in the cavity of the housing, and a plurality of transmission lines for connecting a point on one of a first axis, a second axis, and a third axis with a point on another axis. The first axis, the second axis, and the third axis are orthogonal to each other with respect to a center of the DR element. | 01-13-2011 |
| 20110006857 | COMPLEX RESONATOR, BANDPASS FILTER, AND DIPLEXER, AND WIRELESS COMMUNICATION MODULE AND WIRELESS COMMUNICATION DEVICE USING SAME - Provided is a composite resonator wherein two resonance frequencies can be set discretionarily to a certain extent. The composite resonator is provided with a grounding electrode ( | 01-13-2011 |
| 20110037535 | ELASTIC WAVE FILTER DEVICE - An elastic wave filter device includes first and second inductance elements included in a laminated substrate and first and second elastic wave filter chips mounted on the laminated substrate by flip-chip bonding. The first and second inductance elements provided in the laminated substrate include first and second coil patterns, respectively, which are provided in a plane located at a certain height level in the laminated substrate. The second coil pattern is arranged in a region in which the first coil pattern is provided. | 02-17-2011 |
| 20110074521 | Circuit Configuration - A ceramic multilayer construction includes three resonators designed as parallel strip lines that are capacitatively or magnetically coupled to each other. All circuit components are implemented in the form of metallizations in multilayer construction. Capacitative couplings are implemented by coupling capacitors. The strip line resonators are shortened by shunt arms to ground having grounding capacitors arranged therein. | 03-31-2011 |
| 20110140804 | BAND PASS FILTER COMBINER - A band pass filter combiner carrying a broadband signal with a central frequency comprises a power divider, a high pass band filter, a low pass band filter, and a power combiner. The distance from the signal input port of the power divider to each of signal input ports of the high pass band filter and the low pass band filter is equal to a quarter of the wavelength at the central frequency. The distance from each of signal output ports of the high pass band filter and the low pass band filter to the signal output port of the power combiner is also equal to a quarter of the wavelength at the central frequency. | 06-16-2011 |
| 20110169589 | RECONFIGURABLE FILTER APPARATUS - According to the teachings presented herein, a reconfigurable filter apparatus includes at least first and second passive filter sections connected in parallel to yield a composite filter response. Each passive filter section has a respective passband response and at least one of the passive filter sections is a ‘de-tunable’ passive filter section. Each de-tunable passive filter circuit includes a detuning circuit operable to exclude the respective passband response of the de-tunable passive filter section from the composite filter response by detuning a resonator within the de-tunable passive filter section. ‘Detuning’ the resonator can be understood as short-circuiting, opening the resonator, or otherwise disabling it, such that the filter path is blocked. Advantageously, the resonator(s) that are selectively detuned in this manner is isolated from input and output ports of the de-tunable passive filter section with respect to frequencies outside of the respective passband response of the de-tunable passive filter section. | 07-14-2011 |
| 20110210805 | Duplexer and Method for Increasing the Isolation Between Two Filters - A duplexer includes an antenna terminal, a transmission amplifier terminal and a reception amplifier terminal. The transmission amplifier terminal is coupled to the antenna terminal via a transmission filter. The reception amplifier terminal is coupled to a reception filter and the reception filter is coupled to the antenna terminal via a band-stop filter. | 09-01-2011 |
| 20110279194 | DUPLEXER MODULE - In a duplexer module, a transmitting signal is correctly monitored without deteriorating receiving sensitivity. The duplexer module includes a transmission line, a reception line, and an antenna common line, and performs conversion between a transmission signal and a reception signals and antenna common signals. A transmission filter is inserted into the transmission line, and the transmission filter allows the transmission signal to pass therethrough and stops the reception signal. A reception filter is inserted into the reception line, and the reception filter allows the reception signal to pass therethrough and stops the transmission signal. A first line of a coupler which detects the transmitting signal is inserted into the transmission line at a stage subsequent to the transmission filter. | 11-17-2011 |
| 20120019336 | Low loss RF transceiver combiner - A Radio Frequency (RF) splitter/combiner technique for splitting and combining RF signals using a combination of microstrip traces and coaxial cable for an N-port network is disclosed. | 01-26-2012 |
| 20120313727 | 2-Channel Diplexer Structure - The present invention relates to a structure of a diplexer that prevents outputs of both signals from influencing each other by removing mutual interference between both signals when a signal having a high pulse frequency and a signal having a low pulse frequency are combined and radiated by using the same antenna, and more particularly, to a 2-channel diplexer structure with two channels in which a substrate having a predetermined size is configured, five microstrip lines are arranged on the top of the substrate to be parallel to each other with a predetermined interval. | 12-13-2012 |
| 20130088306 | OPEN CIRCUIT COMMON JUNCTION FEED FOR DUPLEXER - The present disclosure relates to microwave cavity filters used in cellular communication systems. More specifically, in one aspect, the present disclosure relates to the integration of combline cavity filters directly with antenna elements without galvanic connections. In another aspect, the present disclosure relates methods for loading combline filters without contact. | 04-11-2013 |
| 20130099876 | VIA STRUCTURES AND COMPACT THREE-DIMENSIONAL FILTERS WITH THE EXTENDED LOW NOISE OUT-OF-BAND AREA - A filter of the present invention includes a plurality of via structures with a multilayer substrate. Each of the plurality of via structures includes first, second and third functional sections. One end of a signal via of the first functional section is connected to one end of a signal via of the second functional section and another end of the signal via of the second functional section is connected to two signal vias of the third functional section. Those signal vias are surrounded by a plurality of ground vias. Input and output ports of the filter are connected to another end of the signal via of each first functional section. | 04-25-2013 |
| 20130169379 | MICROSTRIP MANIFOLD COUPLED MULTIPLEXER - A multiplexer includes a microstrip manifold, and a filter bank having at least two output filters. The multiplexer channelizes an input radio frequency (RF) band of electromagnetic energy into a set of output channels by way of the filter bank. The microstrip manifold has an input port that receives an input RF signal, and at least two output ports. The microstrip manifold distributes the input RF signal to each output port, each said output port being coupled to a respective one of the at least two output filters. The multiplexer may be an input multiplexer for a spacecraft communications payload system. | 07-04-2013 |
| 20130265119 | ELECTROSTATIC DISCHARGE CONTROL FOR A MULTI-CAVITY MICROWAVE FILTER - A multi-cavity RF filter has at least one electrically conductive coupling probe disposed between two resonator cavities. The coupling probe is provided with an ESD protective arrangement such that the coupling probe is electrically connected to a metallic housing of the RF filter only by the ESD protective arrangement. The ESD protective arrangement is configured to provide (i) a low resistance electrical path from the coupling probe to the metallic housing and (ii) a high impedance to RF energy having wavelengths proximate to a center frequency wavelength of the RF filter. | 10-10-2013 |
| 20130271239 | DIPLEXER - The invention discloses a diplexer formed from the combination of a first filter and a second filter, wherein both the first filter and the second filter have at least one through-hole via inductor. The diplexer has an input terminal to receive an input signal. The first filter has a first terminal electrically connected to the input terminal and a second terminal to generate a first output signal; the second filter has a third terminal electrically connected to the input terminal and a fourth terminal to generate a second output signal. The diplexer has a first output terminal electrically connected to the second terminal of the first filter to output the first output signal and a second output terminal electrically connected to the fourth terminal of the second filter to output the second output signal. | 10-17-2013 |
| 20130285765 | BROAD BAND DIPLEXER USING SUSPENDED STRIP-LINE CAPACITOR TECHNOLOGY - A broad band diplexer employing suspended strip-line capacitors is disclosed. The diplexer has a low pass filter circuit and a high band pass filter circuit. The high band pass filter circuit has a first set of conductive pathways formed on the first surface of a suspended dielectric substrate, a second conductive pathway formed on the second surface of the substrate such that first and second conductive pathways are capacitively coupled, and plural resonators. The high pass filter circuit provides plural transmission poles within the band of operation exceeding the number of resonators. | 10-31-2013 |
| 20130307640 | TRANSMISSION LINE RESONATOR, BANDPASS FILTER USING TRANSMISSION LINE RESONATOR, SPLITTER, BALANCED-TO-UNBALANCED TRANSFORMER, POWER DISTRIBUTOR, UNBALANCED-TO-BALANCED TRANSFORMER, FREQUENCY MIXER, AND BALANCE-TYPE FILTER - A transmission line resonator includes a half-wavelength stepped-impedance resonator with two ends short-circuited to ground, and a capacitive element with one end connected to a center portion of the stepped-impedance resonator and the other end short-circuited to ground. The stepped-impedance resonator includes a first transmission line, a second transmission line, and a third transmission line. The second transmission line has a second line impedance and a second line length, with one end being connected to one end of the first transmission line and the other end being short-circuited to ground. The third transmission line has the second line impedance and the second line length, with one end being connected to the other end of the first transmission line and the other end being short-circuited to ground. The first line impedance is lowered in comparison with the second line impedance. | 11-21-2013 |
| 20140070903 | STRUCTURAL CAPACITOR, CONNECTOR AND COMMUNICATION APPARATUS USING THE CONNECTOR - The present disclosure discloses a structural capacitor, a connector comprising the structural capacitor and a communication apparatus using the connector. The structural capacitor comprises a rod and a holder. The rod comprises a first section and a second section connected with the first section, and the holder comprises a through hole. The first section and the second section are fitted into the through hole to accomplish the connection between the first section and the second section in an axial direction. The connector of the present disclosure features a simple structure, a convenient manufacturing process and a low cost. The communication apparatus of the present disclosure has advantages such as a simple manufacturing process, parameters that can be easily guaranteed, a low processing cost and a stable product performance. | 03-13-2014 |
| 20140091878 | Compact Multi-Port Router Device - The invention relates to a multi port router device capable of carrying a number P, which is greater than or equal to three, of frequency channels, from a number M of input ports to a number N of output ports, at least one of the two numbers M and N being greater than or equal to two, characterised in that it includes at least two filters ( | 04-03-2014 |
| 20140097913 | MULTI-MODE FILTER - The present invention relates to a multi-mode filter comprising a carrier on which is mounted a dielectric resonator having a covering of an electrically conductive material in which there is provided an aperture and a coupling structure for coupling input signals to the dielectric resonator or for extracting filtered output signals from the dielectric resonator. The carrier is provided with an enclosing formation of electrically conductive material, which enclosing formation is electrically coupled to the electrically conductive covering of the dielectric resonator, such that the covering and the enclosing formation together form an electrically conductive enclosure for the dielectric resonator. The enclosure formed from the covering of the dielectric resonator and the enclosing formation increases the isolation of the filter and reduces leakage. The filter of the present invention is particularly suitable for use in cascaded resonator filter arrangements, and in duplex/diplex filters. | 04-10-2014 |
| 20140184354 | FILTER APPARATUS, BASE STATION SYSTEM, AND METHOD FOR FREQUENCY CHANNEL SWITCHING - Embodiments of the present invention disclose a filter apparatus, a base station system, and a method for frequency channel switching. In application of technical solutions provided by the embodiments of the present invention, the grounding probe connected to the electrical ground contacts or approaches the resonator to short-circuit or disturb a resonant cavity that includes the resonator, so as to reject output of an input signal of the filter apparatus and finally achieve an effect of closing the filter apparatus; when the filter apparatus is used in combination with multiple other filter apparatuses, and when the filter apparatus is closed, spurious signals of the other filter apparatuses are not propagated to an antenna port through the filter apparatus. | 07-03-2014 |
| 20140197904 | Method for Fabricating Miniature Structures or Devices such as RF and Microwave Components - Multi-layer, multi-material fabrication methods include depositing at least one structural material and at least one sacrificial material during the formation of each of a plurality of layers wherein deposited materials for each layer are planarized to set a boundary level for the respective layer and wherein during formation of at least one layer at least three materials are deposited with a planarization operation occurring before deposition of the last material to set a planarization level above the layer boundary level and wherein a planarization occurs after deposition of the last material level above the layer boundary level and wherein a planarization occurs after deposition of the last material whereby the boundary level for the layer is set. Some formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations). | 07-17-2014 |
| 20140232482 | TRANSMISSION LINE RESONATOR, BAND-PASS FILTER AND BRANCHING FILTER - A transmission line resonator includes distributed coupled lines including first distributed constant line which one ends are connected to a short-circuit grounding portion and second distributed constant line which is disposed in parallel to the first distributed constant line while being separated therefrom by a predetermined distance and which one ends opposing the short-circuit grounded one ends of the first distributed constant line are connected to the short-circuit grounding portion, and a single transmission line which both ends are connected to the respective other ends of the distributed coupled lines. | 08-21-2014 |
| 20140347145 | HIGH FREQUENCY CIRCUIT MODULE - The high frequency circuit module includes an RFIC configured to transmit and receive a high frequency signal, a power amplifier IC configured to amplify a transmission signal outputted from the RFIC, and a duplexers configured to separate the transmission signal outputted from the power amplifier IC and inputted to an antenna and a reception signal from the antenna and inputted to the RFIC from each other, in which at least one of the RFIC and power amplifier IC is embedded in the circuit substrate, and the duplexers are disposed between the RFIC and the power amplifier IC. | 11-27-2014 |
| 20150042413 | TUNABLE FILTER AND DUPLEXER INCLUDING FILTER - A filter includes a plurality of resonance cavities, where a resonance tube and a tuning bolt penetrating into space enclosed by the resonance tube are disposed in each resonance cavity; further includes a tuning part disposed between the tuning bolt and the resonance tube, where the tuning part and the resonance tube form a first capacitor, and the tuning part and the tuning bolt form a second capacitor; and further includes an adjusting structure used for rotating the tuning part, so as to change relative areas between the tuning part and the resonance tube and between the tuning part and the tuning bolt, so that the first capacitor and the second capacitor change synchronously. In the present invention, the tuning part is disposed between the tuning bolt and the resonance tube, so that the tuning part forms a double-capacitor structure with the resonance tube and the tuning bolt. | 02-12-2015 |
| 20150077195 | Ultra-Broadband Diplexer Using Waveguide and Planar Transmission Lines - A hybrid diplexer combining planar transmission line(s) and a waveguide is disclosed. In one embodiment, a diplexer includes first, second, and third ports. The diplexer also includes a first signal path and a second signal path. The first signal path may be used to convey lower frequencies, and may be implemented using planar transmission lines. The second signal path may be used to convey higher frequencies, and may be implemented, at least in part, using a waveguide. The first signal path may be coupled between the first port and the second port, while the second signal path may be coupled between the first port and the third port. In one embodiment, the first signal path may implement a low-pass filter, while the second signal path may implement a high-pass filter. | 03-19-2015 |
| 20150130562 | MULTIPLEXER WITH COMMON PORT FEEDING STRUCTURE - A multiplexer with a common port feeding structure is disclosed. The multiplexer with a common port feeding structure of the present invention comprises: a housing comprising an antenna connector connected to an antenna for bidirectional transmitting and receiving and a plurality of input/output connectors bidirectionally inputting and outputting a specific frequency band of wireless signals which are input/output through the antenna; a plurality of band-pass filter units mounted inside the housing to transmit wireless signals at between the antenna connector and the input/output connector to pass a specific frequency band; and a coupling unit having a plurality of feeding members to couple the antenna connector and each of the plurality of band-pass filter units. | 05-14-2015 |
| 20150130563 | WIDEBAND ELECTROMAGNETIC CLOAKING SYSTEMS - Arrangement of resonators in an aperiodic configurations are described, which can be used for electromagnetic cloaking of objects. The overall assembly of resonators, as structures, do not all repeat periodically and at least some of the resonators are spaced such that their phase centers are separated by more than a wavelength. The arrangements can include resonators of several different sizes and/or geometries arranged so that each size or geometry corresponds to a moderate or high “Q” response that resonates within a specific frequency range, and that arrangement within that specific grouping of akin elements is periodic in the overall structure. The relative spacing and arrangement of groupings can be defined by self similarity and origin symmetry. | 05-14-2015 |
| 20150325900 | FLAT CABLE HIGH-FREQUENCY FILTER, FLAT CABLE HIGH-FREQUENCY DIPLEXER, AND ELECTRONIC DEVICE - A flat cable high-frequency filter includes a dielectric substrate extending in a transmission direction of a high-frequency signal. The dielectric substrate includes dielectric layers stacked on each other. Elongated conductor patterns are provided on a flat surface of one dielectric layer which faces another dielectric layer. The conductor patterns are as wide as possible in the dielectric substrate in accordance with a desired inductance. A capacitive coupling conductor pattern opposes one conductor pattern by a predetermined area with a dielectric layer therebetween. By using a connecting conductor, the capacitive coupling conductor pattern is connected to the conductor pattern which does not oppose the capacitive coupling conductor pattern. | 11-12-2015 |
| 20150325903 | DIELECTRIC RESONATOR, DIELECTRIC FILTER, AND DIELECTRIC DUPLEXER - A first exemplary aspect of the present invention is a dielectric resonator including: a substrate ( | 11-12-2015 |
| 20160094265 | Dielectric Filter, Transceiver, and Base Station - Embodiments relate to the field of technologies of components of communications devices, and provide a dielectric filter, which resolves a problem that a solid dielectric filter has a difficulty in implementing capacitive coupling. The dielectric filter includes at least two dielectric resonators, where each of the dielectric resonators includes a body made of a solid-state dielectric material, and an adjusting hole located on a surface of the body. The adjusting hole is a blind hole, configured to adjust a resonance frequency of the dielectric resonator on which the blind hole is located. The bodies of all the dielectric resonators included by the dielectric filter form a body of the dielectric filter. | 03-31-2016 |
| 20160099492 | Dielectric Resonator, Dielectric Filter Using Dielectric Resonator, Transceiver, and Base Station - Embodiments of the present disclosure provide a dielectric resonator, a dielectric filter using the dielectric resonator, a transceiver, and a base station, and solve a problem that a loss indicator of an existing dielectric filter cannot meet a filtering requirement of a base station. The dielectric resonator includes a body made of a solid-state dielectric material, where an indentation is disposed on a surface of the body, and the surface of the body and a surface of the indentation are covered with a conducting layer; the dielectric filter includes at least two of the foregoing dielectric resonators. Another type of dielectric filter includes a body made of a solid-state dielectric material, where at least two indentations are disposed on a surface of the body, a hole and/or a groove is disposed between adjacent indentations on the body, and the surface of the body is covered with a conducting layer. | 04-07-2016 |
| 20160134005 | DUPLEXER - A duplexer includes a plurality of first resonators disposed along the transmission path of the transmitting signal; a plurality of second resonators disposed along the transmission path of the receiving signal; and a combining panel having an overlapped area between one of the plurality of first resonators which is disposed closest to an antenna and one of the plurality of second resonators which is disposed closest to the antenna, wherein each of said first resonators and said second resonators includes: a body comprised of dielectric material, and formed with a through hole penetrating unidirectionally, and a conducting layer formed on the cross-section of at least one side of the cross-sections of the both sides along the lengthwise direction of said body, and the surface of the wall of said through hole. | 05-12-2016 |
| 333135000 | Including waveguide element | 26 |
| 20100039186 | ADJUSTABLE ASSEMBLY APPARATUS OF WAVEGUIDE MULTIPLEXER AND WAVEGUIDE PHASE SHIFTER - An adjustable assembly apparatus includes a waveguide phase shifter and a waveguide multiplexer. The waveguide phase shifter has a first flange structure and the waveguide multiplexer has a second flange structure. The second flange structure and the first flange structure are embedded, and the polarization directions of the waveguide phase shifter and the waveguide multiplexer are orthogonal. In an embodiment, the first flange structure includes a bulge, the second flange structure includes a recess, and the bulge is embedded in the recess. The polarization directions of the bulge of the waveguide phase shifter and the recess of the waveguide multiplexer differ by 90 degrees. | 02-18-2010 |
| 20100090779 | METHOD OF ORTHOGONAL-MODE JUNCTION COUPLING WITH A MEDIUM TO BROAD OPERATING BANDWIDTH, AND COUPLER EMPLOYING SAID METHOD - Orthogonal-mode junction coupler with a medium to broad bandwidth for a waveguide ( | 04-15-2010 |
| 20100156556 | WIDEBAND ELECTROMAGNETIC CLOAKING SYSTEMS - Arrangement of resonators in an aperiodic configurations are described, which can be used for electromagnetic cloaking of objects. The overall assembly of resonators, as structures, do not all repeat periodically and at least some of the resonators are spaced such that their phase centers are separated by more than a wavelength. The arrangements can include resonators of several different sizes and/or geometries arranged so that each size or geometry corresponds to a moderate or high “Q” response that resonates within a specific frequency range, and that arrangement within that specific grouping of akin elements is periodic in the overall structure. The relative spacing and arrangement of groupings can be defined by self similarity and origin symmetry. | 06-24-2010 |
| 20100231324 | MONOBLOCK DIELECTRIC MULTIPLEXER CAPABLE OF PROCESSING MULTI-BAND SIGNALS - Disclosed herein is a monoblock dielectric multiplexer capable of processing multi-band signals. The monoblock dielectric multiplexer includes a dielectric block implemented as a hexahedral dielectric forming a body of the monoblock dielectric multiplexer. An external electrode is applied to an external surface of the dielectric block except for to a top surface. Resonant holes are each formed in a cylindrical shape and formed through the top surface and a bottom surface of the dielectric block. Internal electrodes are respectively formed on inner walls of the resonant holes. A plurality of capacitance patterns is formed on the top surface of the dielectric block and is configured to surround corresponding resonant holes. Input/output electrode units are formed and spaced apart from the capacitance patterns and configured to form capacitance coupling to the capacitance patterns. A collation antenna stage is formed in a center portion of the dielectric block. | 09-16-2010 |
| 20100315177 | EVEN HARMONIC MIXER - Provided is an even harmonic mixer which is reduced in cost and size. The even harmonic mixer includes: a transducer in which a conductor of a microstrip line is connected to a ground plane of a waveguide, for transducing an RF signal transmitted in a waveguide mode into a transmission mode of the microstrip line; an anti-parallel diode pair which is cascade-connected to a microstrip line side of the transducer, and formed on a semiconductor substrate; a branching circuit for branching an LO signal and an IF signal; an open-end stub which is disposed between the transducer and the anti-parallel diode pair, and has a line length of about ½ wavelength at an RF signal frequency; and an open-end stub which is disposed between the anti-parallel diode pair and the branching circuit, and has a line length of about ¼ wavelength at the RF signal frequency. | 12-16-2010 |
| 20110050360 | WIDEBAND ELECTROMAGNETIC CLOAKING SYSTEMS - Arrangement of resonators in an aperiodic configurations are described, which can be used for electromagnetic cloaking of objects. The overall assembly of resonators, as structures, do not all repeat periodically and at least some of the resonators are spaced such that their phase centers are separated by more than a wavelength. The arrangements can include resonators of several different sizes and/or geometries arranged so that each size or geometry corresponds to a moderate or high “Q” response that resonates within a specific frequency range, and that arrangement within that specific grouping of akin elements is periodic in the overall structure. The relative spacing and arrangement of groupings can be defined by self similarity and origin symmetry. Fractal based scatters are described. Further described are bondary condition layer structures that can activate and deactive cloaking/lensing structures. | 03-03-2011 |
| 20110241795 | BANDPASS FILTER - A bandpass filter of the present invention includes: rectangular waveguides which are divided into two in a center of a broad plane; and a metal plate which has a substantially ladder shape, and is disposed between the rectangular waveguides in parallel with a narrow plane of the rectangular waveguides, and has a pair of beams and plurality of fins that connect the pair of beams. At least one other waveguide is formed by dividing a waveguide path within the rectangular waveguides vertically with respect to a direction which is parallel with the broad plane. At least three resonators is formed within the rectangular waveguides by the metal plate, and each of the other waveguides couples resonators together which crosses at least one of the plurality of resonators so as to form a pole outside a pass band. | 10-06-2011 |
| 20120319798 | WIDEBAND ELECTROMAGNETIC CLOAKING SYSTEMS - Arrangement of resonators in an aperiodic configurations are described, which can be used for electromagnetic cloaking of objects. The overall assembly of resonators, as structures, do not all repeat periodically and at least some of the resonators are spaced such that their phase centers are separated by more than a wavelength. The arrangements can include resonators of several different sizes and/or geometries arranged so that each size or geometry corresponds to a moderate or high “Q” response that resonates within a specific frequency range, and that arrangement within that specific grouping of akin elements is periodic in the overall structure. The relative spacing and arrangement of groupings can be defined by self similarity and origin symmetry. | 12-20-2012 |
| 20130038407 | WAVEGUIDE E-PLANE FILTER STRUCTURE - A waveguide E-plane filter component comprising a first main part and a second main part which in turn comprise a corresponding first and second waveguide section part. The main parts are arranged to be mounted to each other, each waveguide section part comprising a bottom wall, corresponding side walls and an open side, where the open sides are arranged to face each other. The waveguide E-plane filter component further comprises at least one electrically conducting foil that is arranged to be placed between the main parts, said foil comprising a filter part that is arranged to run between the waveguide section parts, the filter part comprising apertures, in said foil. | 02-14-2013 |
| 20130154764 | IN-PHASE H-PLANE WAVEGUIDE T-JUNCTION WITH E-PLANE SEPTUM - In an example embodiment, an in-phase H-plane T-junction can comprise: a first waveguide port; a second waveguide port; a third waveguide port, wherein the third waveguide port can be a common port; and an E-plane septum. The first, second, and third waveguide ports can be in the H-plane and can be each connected to each other in a T configuration. The T-junction can be configured such that microwave signals in a first band can be in-phase with each other at the first and second waveguide ports, and microwave signals in a second band can be in-phase with each other at the first and second waveguide ports. The H-plane T-junction can be at least one of a power combiner and a power divider. | 06-20-2013 |
| 20130278351 | WAVEGUIDE BASED FIVE OR SIX PORT CIRCUIT - A five-six-port circuit comprising a waveguide on a main surface of a substrate. The hollow waveguide comprises probes arranged longitudinally inside the hollow waveguide arranged to contact the input port of one of three power detectors, whose output ports are arranged to contact the input port of one power detector. The output ports of the power detectors contact the conductor of an open waveguide which extends in parallel to the hollow waveguide. The probes are equidistantly spaced with a distance of L. The circuit also comprises three LP filters, each of which is connected to the conductor of the open waveguide at a position which corresponds to the position of one of the power detectors. | 10-24-2013 |
| 20130335165 | Waveguide Busbar - A waveguide busbar for converting a plurality of high-frequency input signals into high-frequency output signals, includes a waveguide, a plurality of input ports, which are arranged along the waveguide, such that each input port is intended to receive a high-frequency input signal, an output port on the waveguide for delivering the high-frequency output signal and at least one parallel resonator, which is connected to the waveguide busbar between two input ports. The parallel resonator has a mechanically adjustable volume with which a phase relation of the waveguide is adjustable between the two input ports. | 12-19-2013 |
| 20130342282 | ORTHOMODE JUNCTION ASSEMBLY WITH ASSOCIATED FILTERS FOR USE IN AN ANTENNA FEED SYSTEM - An advanced reverse orthomode junction feed assembly with associated filters for use in an antenna feed system for transmitting a first low frequency (LF) electromagnetic signal and receiving a second high frequency (HF) electromagnetic signal. The assembly includes, in a preferred square waveguide topology, an orthomode junction with an antenna port for connecting to a choking iris matching section and an antenna feed, an opposed generally coaxial first signal port to transmit the LF signal, and a generally perpendicular second signal port, located there between, to receive the HF signal. A first signal channel having fully asymmetric on-axis second signal reject filters connects to the first port; and a second signal channel having cross-axis first signal reject filters with multi-cavity HF path matching assembly connects to the second port. The use of a magic-tee as a combiner for the receive signal provides tracking capability to the antenna feed system. | 12-26-2013 |
| 20140070904 | METALIZED MOLDED PLASTIC COMPONENTS FOR MILLIMETER WAVE ELECTRONICS AND METHOD FOR MANUFACTURE - Waveguide components that have a high degree of performance accuracy over the temperature range of interest are provided. The components require no post-formation trimming steps, are light-weight, and dimensionally stable. In addition, a method for the manufacture of these millimeter wave components is provided. | 03-13-2014 |
| 20140091879 | ANTENNA AND PRINTED-CIRCUIT BOARD USING WAVEGUIDE STRUCTURE - A waveguide structure including a plurality of unit structures, each of which at least includes a first conductive plane and a second conductive plane, which are arranged to partially face with each other, a plurality of transmission lines with one ends being open ends, which are disposed in a plane, positioned opposite to the second conductive plane, in a layer different from the first conductive plane and the second conductive plane, and at least one conductive via, which electrically connect between the first conductive plane and other ends of the transmission lines. | 04-03-2014 |
| 20140118085 | Adjustable Waveguide Busbar - A waveguide busbar for conducting microwaves includes a group input for coupling in a group microwave signal, a plurality of filter inputs for coupling in a plurality of microwave signals, a dual waveguide that comprises a first single waveguide and a second single waveguide. The plurality of filter inputs are disposed along the dual waveguide, as well as at least one adjustable coupling member that provides a connection between the first single waveguide and the second single waveguide and that is configured such that it adjusts a phase length of the connection. | 05-01-2014 |
| 20150077196 | Dielectric Waveguide Input/Output Structure and Dielectric Waveguide Duplexer Using the Same - The present invention provides a dielectric waveguide input/output structure for connecting to a coaxial connector a plurality of dielectric waveguide resonators each comprising an approximately parallelepiped-shaped dielectric block, wherein the plurality of dielectric waveguide resonators include a first dielectric waveguide resonator and a second dielectric waveguide resonator each having an exterior coated with an electrically conductive film, except for a coupling window, wherein each of the coupling window is formed with a probe composed of an electrically conductive film, the probe having one end connected to a feeding point, and the other end connected to the electrically conductive film, and wherein the first dielectric waveguide resonator and the second dielectric waveguide resonator are arranged in such a manner that the one side surfaces thereof are located in opposed relation to each other. | 03-19-2015 |
| 20150295294 | RF Duplexer Filter Module with Waveguide Filter Assembly - An RF duplexer waveguide filter module for the transmission and filtering of TX and RX RF signals comprising a substrate with TX and RX filter assemblies mounted thereon. One or both of the TX and RX filter assemblies comprises an RF waveguide filter assembly including a plurality of blocks of dielectric material coupled together in a side-by-side relationship. Each of the blocks of dielectric material defines at least one slit and at least one internal RF signal transmission window. One or both of the end blocks defines a step and a through-hole terminating in an opening in the step. In one embodiment, the RF duplexer waveguide filter module additionally comprises an RF antenna waveguide filter extending between and coupling the TX and RX filter assemblies to an antenna RF signal transmission line. | 10-15-2015 |
| 20150295299 | Frequency Selector for mm-wave Communication using a Dielectric Waveguide - Signals on a dielectric waveguide are filtered to pass or block selected frequencies. A combined signal is received in the DWG, wherein the combined signal comprises at least a first frequency signal with a first wavelength and a second frequency signal with a second wavelength. The combined signal is split into a first portion and a second portion. The first portion of the combined signal is delayed by an amount of delay time to form a delayed first portion. The delayed first portion is joined with the received combined signal to form a filtered signal such that the first frequency signal is enhanced by constructive interference while the second frequency signal is diminished by destructive interference. A portion of the filtered signal is provided to a receiver, whereby the amplitude of the second frequency signal is attenuated in the filtered signal. | 10-15-2015 |
| 20150303542 | WIDE TUNABLE BAND FILTERS - The present disclosure introduces wide tunable band filters. In one embodiment, a wide tunable band filter apparatus is described. The filter apparatus may include a microstrip patch having a plurality of symmetrical slots etched into the microstrip patch. A plurality of diodes may be coupled to the microstrip patch. Furthermore, two asymmetrical feed lines may be connected to the microstrip patch. Other embodiments are also described. | 10-22-2015 |
| 20150380793 | RADIO FREQUENCY FILTER - The present invention relates to a radio frequency filter comprising: a first filter unit for filtering a signal in a first frequency band, which is a basic frequency band; a second filter unit for filtering a signal in a second frequency band, which is an additional frequency band in addition to the basic frequency band; and a switching unit having a structure in which at least one resonance terminal among one or more resonance terminals constituting the second filter unit is connected to or blocked from a ground terminal so as to eliminate or maintain the resonance function of the relevant resonance terminal(s). | 12-31-2015 |
| 20160043457 | A Waveguide E-Plane Filter Structure - The present invention relates to a waveguide E-plane filter component comprising a first and second main part ( | 02-11-2016 |
| 20160118703 | METHOD FOR PERFORMING FREQUENCY BAND SPLITTING - A frequency band splitter is disclosed. The frequency band splitter includes a first, a second, and a third waveguides, A first narrow rectangular waveguide is utilized to connect the first waveguide to second waveguide. The first narrow rectangular waveguide has a first width to allow signals of a frequency band centered around a first frequency to be transmitted from the first waveguide to the second waveguide. A second narrow rectangular waveguide is utilized to connect the first waveguide to the third waveguide. The second narrow rectangular waveguide has a second width, which is different from the first width, to allow signals of a frequency band centered around a second frequency to be transmitted from the first waveguide to the third waveguide. | 04-28-2016 |
| 20160118706 | METHOD FOR PERFORMING FREQUENCY BAND SPLITTING - A frequency band splitter is disclosed. The frequency band splitter includes a first, a second, and a third waveguides. A first narrow rectangular waveguide is utilized to connect the first waveguide to second waveguide. The first narrow rectangular waveguide has a first width to allow signals of a frequency band centered around a first frequency to be transmitted from the first waveguide to the second waveguide. A second narrow rectangular waveguide is utilized to connect the first waveguide to the third waveguide. The second narrow rectangular waveguide has a second width, which is different from the first width, to allow signals of a frequency band centered around a second frequency to be transmitted from the first waveguide to the third waveguide. | 04-28-2016 |
| 20160149283 | TWO-TRANSMITTER TWO-RECEIVER ANTENNA COUPLING UNIT FOR MICROWAVE DIGITAL RADIOS - An antenna coupling device is disclosed. The device includes a first isolator that includes an input port and an output port and a first circulator that includes a first port, a second port, and a third port. The first port of the first circulator is coupled with the output port of the first isolator; and the second port of the first circulator is configured for coupling with a first antenna. The device also includes a second isolator that includes an input port and an output port. The input port of the second isolator is coupled with the third port of the first circulator. | 05-26-2016 |
| 20170237137 | FILTER, BRANCHING FILTER, WIRELESS COMMUNICATION MODULE, BASE STATION, AND CONTROL METHOD | 08-17-2017 |
