| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 343852000 | Plural path with impedance matching | 63 |
| 20080291110 | Feed Network Device, Antenna Feeder Subsystem, and Base Station System - A feed network device, an antenna feeder subsystem, and a base station system are provided. The feed network device comprises: two first stage couplers, two phase shifters, and two second stage couplers cascaded on a Printed Circuit Board, wherein each coupler is a multilayered dielectric broad-side coupler, and the difference of phase between an output signal at the coupling port and an output signal at the direct connection port is 90° in each multi-dielectric broad-side coupler. | 11-27-2008 |
| 20090046030 | Automatic Antenna Tuning Unit for Software-Defined and Cognitive Radio - A closed-loop controlled antenna tuning unit (ATU) system includes a return loss detector connected to sample an RF signal generated by a signal source to provide a return loss signal. A matching state searching circuit is connected to receive the return loss signal and, in response, selectively store a return loss value and an impedance matching state. A central controller is connected to provide a switch control signal and apply an optimum matching state to the impedance synthesizer at the conclusion of the matching state search. An impedance synthesizer is responsive to the switch control signal for coupling a radio frequency signal and matching the impedance of an antenna to a signal source. | 02-19-2009 |
| 20090167627 | Antenna Arrangement - An antenna arrangement comprising: a first antenna element; a second antenna element; a coupling element for electromagnetically coupling to the first antenna element and the second antenna element; and a switching mechanism, connected to the coupling element, for switching between a first electrical configuration and a second electrical configuration, wherein when the switching mechanism is in the first electrical configuration, the coupling element has a first impedance and when the switching mechanism is in the second electrical configuration, the coupling element has a second impedance. | 07-02-2009 |
| 20090251383 | POLARIZATION SWITCHING ANTENNA DEVICE - A polarization switching antenna device capable of switching a polarization without increase of an antenna installing space and also handling a variety of frequency bands is provided. A connection state of one end of a loop antenna element arranged on a side surface of a case is switched. Thus, the polarization characteristic is switched by switching selectively whether the antenna element should constitute a loop antenna or a linear antenna. Matching circuits suitable for respective characteristics are provided. The loop antenna can be fed in terms of a balanced feeding. A balanced feeding and an unbalanced feeding can be switched. | 10-08-2009 |
| 20100079352 | ANTENNA SYSTEM AND METHOD FOR MAKING THE SAME - An antenna system adapted for a communication device has a common antenna with a predetermined length, an AM matching circuit matching with the common antenna and an FM matching circuit matching with the common antenna. A switch alternatively electrically connects the common antenna to the AM matching circuit and the FM matching circuit for achieving the AM function and FM function. | 04-01-2010 |
| 20100134377 | PLANAR ANTENNA - A planar antenna including a substrate, multiple antenna bodies and a metal layer is provided. The antenna bodies are disposed at a surface of the substrate, and the metal layer is disposed at another surface of the substrate. The metal layer has multiple slots which interlace with the antenna bodies. The antenna bodies are partially corresponding to the metal layer and used to cooperate with a communication system which can perform a multi-path transmission to send and receive electromagnetic signals for a multiple MIMO system simultaneously. | 06-03-2010 |
| 20100164831 | Hooked Turnstile Antenna for Navigation and Communication - An antenna includes a first antenna element and a second antenna element, wherein the first antenna element and the second antenna element are both configured in a hook shape. The antenna also includes a first impedance matching circuit coupled to the first antenna element, wherein the first impedance matching circuit includes a first plurality of filters and a second impedance matching circuit coupled to the second antenna element, wherein the second impedance matching circuit includes a second plurality of filters. | 07-01-2010 |
| 20100321271 | System and Apparatus for Receiving Digital Television Signals - Apparatus and methods to receive and display digital television signals are described. In one embodiment, an apparatus to receive digital television signals comprises an antenna assembly coupled to the signal processing circuitry and comprising a first antenna positioned to maximize reception in a first direction and a second antenna positioned to maximize reception in a second direction, different from the first direction, and a processor coupled to the antenna assembly and comprising a selection logic module to select an antenna to receive a digital television signal for a specific channel, and a tuning logic module to configure the antenna assembly to receive a signal via a selected antenna. | 12-23-2010 |
| 20110102290 | ADJUSTABLE MULTI-BAND ANTENNA AND METHODS - An adjustable multi-band planar antenna especially applicable in mobile terminals. The feed of the antenna can be connected by a multiple-way switch (SW) to at least two alternative points (FP | 05-05-2011 |
| 20110140982 | Apparatus, Method And Computer Program For Wireless Communication - An apparatus including: a first antenna operable in a first resonant frequency band; a second antenna operable in a second resonant frequency band; a first filter coupled to the second antenna; and a first phase shifter configured to provide the combination of at least the first filter and the second antenna with an impedance at the first resonant frequency band which substantially suppresses coupling between the first antenna and the second antenna. | 06-16-2011 |
| 20110215981 | HIGH FREQUENCY TRANSMISSION MODULE WITH IMPROVED HARMONIC FEATURE - There is provided a high frequency transmission module, including: a high band power amplifier amplifying power of a preset high band frequency signal; a low band power amplifier amplifying power of a preset low band frequency signal; an LC matching circuit unit matching output impedance of the low band power amplifier to impedance of an antenna switch circuit; the antenna switch circuit connecting one of a first terminal connected to an output terminal of the high band power amplifier and a second terminal connected to the LC matching circuit unit to a common terminal; and a matching/ESD protecting unit matching impedances between the antenna switch circuit and an antenna and blocking static electricity introduced from the antenna. | 09-08-2011 |
| 20110234469 | WIRELESS COMMUNICATION TERMINAL - A wireless communication terminal including an antenna that supports first and second frequency bands, an RF circuit connected to the antenna; a shunt circuit connected between a connection point of the antenna and the RF circuit, and a ground, and a control unit that controls the shunt circuit. | 09-29-2011 |
| 20110254750 | METHOD AND CIRCUIT FOR TRANSMITTING AND RECEIVING RADIO WAVES WITH A SINGLE OSCILLATORY CIRCUIT ANTENNA - Output terminals (o | 10-20-2011 |
| 20110273354 | Transfer Unit for Radio Frequency Signals and Method for Alternatively Using an Electrical Antenna or a Magnetic Antenna with a Classic Antenna Tuner - A transfer unit for transferring a radio frequency signal between a classical antenna tuner and an antenna where the transfer unit comprises a switch for alternatively selecting a first direct route for the radio frequency signal between the tuner and the antenna or a second route via a reactive element; said reactive element comprising a variable serial capacitance and a shunt inductance connected to system earth; and where a control unit controls the switch and is adapted to select the first route when the frequency is above a predetermined value and otherwise select the second route. The variable serial capacitance comprises a set of capacitors organized as a set of binary weighted parallel capacitance values, and the transfer unit further comprises switches to engage or disengage each capacitor from the reactive element to increase or decrease the resulting capacitance as the radio frequency is decreased or increased. The control unit can use a subset of the capacitors for one range of frequencies and a different subset of the capacitors for a different range of frequencies. The control unit can alternatively measure the radio frequency by means of a sensor or receive frequency values via a data link. | 11-10-2011 |
| 20110279344 | RADIO FREQUENCY PATCH ANTENNAS FOR WIRELESS COMMUNICATIONS - An antenna assembly connectible to a radio frequency (RF) front end integrated circuit is disclosed. The antenna assembly includes a feed port connectible to a feeding line. There is a set of inner patch elements each having substantially identical first dimensions corresponding to a center resonant operating frequency, and also define perpendicular slots of predetermined lengths. The inner patch elements are in a spaced, parallel relationship. A set of outer patch elements each has substantially identical second dimensions. The inner patch elements are in a spaced, parallel and interposed relationship between the set of outer patch elements. A first electrically conductive element of the feed port is connected to a first one of the inner patch elements, and a second electrically conductive element of the feed is connected to a second one of the inner patch elements. | 11-17-2011 |
| 20120001822 | WIRELESS COMMUNICATION APPARATUS - A wireless communication apparatus includes a first housing, a second housing which is openably and closably connected to the first housing through a hinge, a first conductor part which is arranged on the first housing, a second conductor and an antenna element, which are arranged on the second housing and an antenna switching part that makes the first conductor part, the second conductor part, and the antenna element serve as a dipole antenna when the first housing and the second housing are in an open state, and makes the antenna element serve as a monopole antenna when the first conductor and the second conductor are in a closed state. | 01-05-2012 |
| 20120218165 | ANTENNA-MATCHING DEVICE, ANTENNA DEVICE AND MOBILE COMMUNICATION TERMINAL - An antenna-matching device includes a first antenna terminal that is connected to a first radiating element, a second antenna terminal that is connected to a second radiating element, power feeding terminals and that are connected to a power-feeding unit C, an antenna coupling circuit (coupling inductance element L) that is connected in series between the antenna terminals, and a matching unit B that is connected between the antenna terminals and the power feeding terminals. The coupling inductance element L and the matching unit are integrally provided in a substrate. The matching circuit B is connected in series with the signal lines and includes a first resonant circuit and a second resonant circuit that have different resonant frequencies from each other and are coupled with each other. The matching unit B is connected to a power-feeding circuit that includes an RF circuit. | 08-30-2012 |
| 20120242558 | RECONFIGURABLE ANTENNA - A reconfigurable antenna comprises two or more mutually coupled radiating elements and two or more impedance-matching circuits ( | 09-27-2012 |
| 20120306717 | Multi-Port Distributed Antenna - Methods and systems for a multi-port distributed antenna are disclosed and may include configuring one or more amplifiers to communicate signals via one or more ports on a distributed antenna. A characteristic impedance of the distributed antenna at each of the one or more ports may be configured by a location of the one or more ports on the distributed antenna. The amplifiers may be impedance matched to the distributed antenna by coupling each of the amplifiers to the ports based on the characteristic impedance. The amplifiers may include power amplifiers and/or low noise amplifiers. The signals may be time division duplexed. The signals communicated via the ports on the distributed antenna may include RF signals. The distributed antenna may be integrated on a chip with the amplifiers or may be located external to a chip with the amplifiers. The distributed antenna may include a microstrip antenna. | 12-06-2012 |
| 20120319918 | ANTENNA MATCHING APPARATUS AND METHODS - Apparatus and methods for matching the antenna of a radio device. In one embodiment, a capacitive sensor is arranged in the antenna structure and configured to detect the electric changes in the surroundings of the antenna. The mismatch caused by a change is rectified by means of the signal proportional to the sensor capacitance. This capacitance and the frequency range currently in use are input variables of a control unit. The antenna impedance is adjusted by means of a reactive matching circuit, the component values of which can be selected from a relatively wide array of alternatives by way of change-over switches, which are located in the transverse branches of the matching circuit. | 12-20-2012 |
| 20130033412 | ARRANGEMENT FOR WIRELESSLY NETWORKING DEVICES IN AUTOMATION TECHNOLOGY - An arrangement for wirelessly networking sensors, actuators and at least one shared control unit in automation technology, has a first connection point for receiving an RF transmit signal from an RF transmitter and for providing an RF receive signal from an antenna. The arrangement has a second connection point, which leads to the antenna, and a signal coupler, arranged between the first connection point and the second connection point. The signal coupler transmits the RF transmit signal from the first connection point to the antenna, and transmits the RF receive signal from the antenna to the first connection point. The signal coupler has a variable coupling attenuation with a low first attenuation factor and at least one higher second attenuation factor. The signal coupler transmits the RF receive signal using the low first attenuation factor and transmits the RF transmit signal using the higher second attenuation factor. | 02-07-2013 |
| 20130038500 | SWITCHING ARRANGEMENT FOR AN ANTENNA DEVICE - Exemplary embodiments are disclosed of switching arrangements for antenna devices. Exemplary embodiments are also disclosed of antenna arrangements and portable radio communication devices including such switching arrangements. An exemplary embodiment includes a switching arrangement for an antenna device operational in at least two frequency bands. In this example, the switching arrangement generally includes a switching device that is switchable into at least a first state and a second state. The switching device includes at least a first port, a second port, and a third port. The first port is connectable to an antenna device. The second port is connected to the first port in the first state. The third port is connected to the first port in the second state. The switching arrangement includes an inductor connected between the first port and ground. | 02-14-2013 |
| 20130050046 | CUSTOMIZABLE ANTENNA FEED STRUCTURE - Custom antenna structures may be used to compensate for manufacturing variations in electronic device antennas. An antenna may have an antenna feed and conductive structures such as portions of a peripheral conductive electronic device housing member. The custom antenna structures compensate for manufacturing variations that could potentially lead to undesired variations in antenna performance. The custom antenna structures may make customized alterations to antenna feed structures or conductive paths within an antenna. An antenna may be formed from a conductive housing member that surrounds an electronic device. The custom antenna structures may be formed from a printed circuit board with a customizable trace. The customizable trace may have a contact pad portion on the printed circuit board. The customizable trace may be customized to connect the pad to a desired one of a plurality of contacts associated with the conductive housing member to form a customized antenna feed terminal. | 02-28-2013 |
| 20130113677 | Adaptive Antenna Module - A cheaper to produce, smaller and easy to drive adaptive antenna module is presented. The module comprises a signal path, an antenna, and a tuning circuit with two variable impedance elements. The tuning circuit operates over a restricted range of impedances and maintains the series resonance characteristic of the antenna. | 05-09-2013 |
| 20130113678 | RECONFIGURABLE SELF COMPLEMENTARY ARRAY - An antenna structure for the transmission or receipt of electromagnetic signals, the structure formed as a self complementary array having a series of high and low impedance patches, with predetermined low impedance patches interconnected to one another by an impedance matching amplifier network so as to provide self complementary properties. | 05-09-2013 |
| 20130135171 | ACTIVE SELF-RECONFIGURABLE MULTIMODE ANTENNA SYSTEM - A self-reconfigurable multimode antenna system where loading conditions of sensors are analyzed and used to generate control signals to dynamically reconfigure an antenna for improved performance. One or multiple sensors can be coupled to the antenna to dynamically change the radiating structure. One or multiple sensors can be coupled to the input or matching section of the antenna to improve or alter the impedance match of the antenna. An algorithm to relate loading effects of sensors to dynamically adjust the antenna is described. | 05-30-2013 |
| 20130162495 | FRONT-END APPARATUS OF WIRELESS TRANSCEIVER USING RF PASSIVE ELEMENTS - Disclosed is a front-end apparatus of an RF transceiver connected with an antenna in a wireless communication system. The front-end apparatus of an RF transceiver using radio-frequency passive elements includes: a plurality of band pass filters configured a transmission signal and a reception signal; a first circulator configured to output a first transmission signal to a second terminal and output a second reception signal input; a second circulator configured to output a second transmission signal input into the first terminal to the second terminal and output a first reception signal input into the second terminal to the third terminal; a passive directional double pole and double throw switch configured to process a route to be changed depending on directions of an input and an output; a first antenna configured to transmit the first transmission signal; and a second antenna configured to transmit the second transmission. | 06-27-2013 |
| 20130187824 | IMPEDANCE CONVERTING CIRCUIT AND COMMUNICATION TERMINAL APPARATUS - An impedance converting circuit module includes a first matching circuit, a feeding-circuit-side matching circuit interposed between the first matching circuit and a feeding circuit, and an antenna-side matching circuit interposed between the first matching circuit and a radiating element. The feeding-circuit-side matching circuit performs impedance matching between a feeding port of the feeding circuit and the first matching circuit, and the antenna-side matching circuit performs impedance matching between a port of the radiating element and the first matching circuit. | 07-25-2013 |
| 20130207870 | Antenna System with Small Multi-Band Antennas - Multi-band antennae used for television reception of at least two different frequency bands enable multi-band reception with an electrically small antenna. The designs are applicable to individual antenna elements, two dimensional arrays, three dimensional arrays, and arrays constructed for high volumetric efficiency. By using the multi-band element, greater frequency reception is achieved with greater density possible in the antenna arrays. | 08-15-2013 |
| 20130249766 | DEVICE FOR IMPLEMENTING FM ANTENNA AND A MOBILE TERMINAL - A device for implementing a frequency modulation (FM) antenna so as to solve the technique problem of poor reception performance of the FM antenna. The device comprises a first Print Circuit Board (PCB) containing a metal line, a device used as FM antenna and a matching circuit, the first PCB containing the metal line and the device used as FM antenna being connected respectively to the matching circuit, wherein the first PCB containing the metal line is used as a first FM antenna and configured to receive FM signals; the device used as FM antenna is used as a first FM antenna and configured to receive FM signals; and the matching circuit is configured to filter the FM signals received by the first FM antenna and the second FM antenna and output the filtered FM signals. | 09-26-2013 |
| 20130249767 | FREQUENCY STABILIZATION CIRCUIT, ANTENNA DEVICE, AND COMMUNICATION TERMINAL APPARATUS - A frequency stabilization circuit includes a primary side circuit connected to a feeder circuit, and a secondary side circuit electromagnetically coupled to the primary side circuit. The primary side circuit is a series circuit including a first coiled conductor and a second coiled conductor, and the secondary side circuit is a series circuit including a third coiled conductor and a fourth coiled conductor. An antenna element is connected through a high pass filter to a first antenna connection portion set as a connection point of the first coiled conductor and the second coiled conductor. Additionally, the antenna element is connected through a low pass filter to a second antenna connection portion set as a connection point between the second coiled conductor and the fourth coiled conductor. | 09-26-2013 |
| 20130257673 | Mobile Communication Coverage Distribution System in Corridor and Coupled Radiation Unit - A mobile communication coverage distribution system in corridor is used for mobile communication signal coverage in corridor environment. The system includes a radio frequency (RF) cable arranged along longitudinal direction of the corridor and intended for signal transmission and having a plurality of spaced access nodes; a signal source for transmitting signal to from the RF cable or receiving signal to from the RF cable; a number of coupled radiation units corresponding to each access node and used to realize signal coverage in a limited range near the access node, said signal being transmitted across the RF cable. The mobile communication coverage distribution system in corridor according to the invention has simple structure, low cost, is convenient in construction and has reliable performance. | 10-03-2013 |
| 20130278477 | MULTI-BAND COMMUNICATION SYSTEM WITH ISOLATION AND IMPEDANCE MATCHING PROVISION - A communication system is provided, including an antenna coupled to multiple RF paths, one or more matching networks, multiple switches, a controller configured to control the one or more matching networks and the multiple switches, and a look-up table coupled to the controller, the look-up table including characterization data according to frequency bands and conditions. The multiple switches are controlled to engage the signal path corresponding to the frequency band selected. The one or more matching networks are controlled by the controller to provide optimum impedance for the frequency band selected and a condition detected during a time interval with reference to the look-up table. Additional switches may be included to improve isolation. | 10-24-2013 |
| 20130285873 | MULTI-BAND COMMUNICATION SYSTEM WITH ISOLATION AND IMPEDANCE MATCHING PROVISION - A communication system is provided, including one or more antennas coupled to multiple RF paths, one or more matching blocks, each block including multiple matching networks, a look-up table including characterization data according to frequency bands and conditions, and a controller configured to control the multiple matching networks by referring to the look-up table to provide optimum impedance for a frequency band selected and a condition detected during a time interval. The matching block may further include switches and adjustment circuits. | 10-31-2013 |
| 20130285874 | RADIOFREQUENCY AND OTHER ELECTRONIC DEVICES FORMED FROM ENHANCED RESONANT FREQUENCY HEXAFERRITE MATERIALS - Radiofrequency and other electronic devices can be formed from textured hexaferrite materials, such as Z-phase barium cobalt ferrite Ba | 10-31-2013 |
| 20130285875 | FREQUENCY-VARIABLE CIRCUIT AND MULTI-BAND ANTENNA DEVICE - A multi-band antenna device includes a frequency variable circuit, a first radiating element used in a first frequency band, a second radiating element used in a second frequency band lower than the first frequency band, and a power supply circuit. The frequency variable circuit includes a parallel resonant circuit in which a capacitor and an inductor are connected in parallel, and a first variable capacitance element connected in parallel with the capacitor. An end of the parallel resonant circuit and the first variable capacitance element are connected to the power supply circuit and the first radiating element. Another end of the parallel resonant circuit and the first variable capacitance element are connected to the second radiating element. The parallel resonant circuit has a resonant frequency closer to the first frequency band than to the second frequency band. | 10-31-2013 |
| 20130314294 | PORTABLE COMMUNICATION APPARATUS - A portable communication apparatus includes a first antenna radiator, a second antenna radiator, a first feeding point, a second feeding point, and a matching circuit. The first antenna radiator is used for radiating a high-frequency band signal. The second antenna radiator is used for radiating a low-frequency band signal. The first feeding point is coupled to the first antenna radiator and is utilized for processing feed-in or feed-out of the signal of first antenna radiator. The second feeding point is coupled to the second antenna radiator and is utilized for processing feed-in or feed-out of the signal of second antenna radiator. The first feeding point is separate from the second feeding point. The matching circuit is coupled to the first and second feeding points, and used for impedance matching with the first antenna radiator and the second antenna radiator. | 11-28-2013 |
| 20130342421 | METHOD AND APPARATUS FOR CONTROLLING AN ANTENNA - A method and apparatus for controlling an antenna is provided. A load on a second antenna of a device is determined, the device comprising at least one processor, a first antenna, a variable tuning circuit connected to the first antenna, and the second antenna, wherein the processor determines the load. The processor controls the variable tuning circuit based on the load on the second antenna to change a match of the first antenna. | 12-26-2013 |
| 20140002323 | METHOD AND APPARATUS TO CONTROL MUTUAL COUPLING AND CORRELATION FOR MULTI-ANTENNA APPLICATIONS | 01-02-2014 |
| 20140049439 | COMPACT DUAL-POLARIZED MULTIPLE DIRECTLY FED & EM COUPLED STEPPED PROBE ELEMENT FOR ULTRA WIDEBAND PERFORMANCE - A compact antenna element and assembly using a directly fed and electromagnetically coupled step probe element for ultra wideband application. It achieves very good impedance match, isolation and pattern stability across a wide frequency band. The compact ultra wideband radiating element covers all known radio frequency bands in the mobile base station industry to date. | 02-20-2014 |
| 20140049440 | COUPLING DEGREE ADJUSTMENT CIRCUIT, ANTENNA DEVICE, AND WIRELESS COMMUNICATION DEVICE - A dielectric body includes a first radiating element on a first side and a second radiating element on a second side. The first radiating element and the second radiating element are linear conductors that each extend from a first end to a second end (an open end), and are parallel or substantially parallel to each other in a direction from the first end to the second end. The first end of the first radiating element is connected to a first port of a coupling degree adjustment circuit, and the first end of the second radiating element is connected to a second port of the coupling degree adjustment circuit. The first radiating element and the second radiating element are mainly coupled to each other in the coupling degree adjustment circuit. | 02-20-2014 |
| 20140118214 | ANTENNA DEVICE - In an antenna device, power is fed from a first port to a first radiation element, and power is fed from a second port to a second radiation element. A decoupling circuit connects the first radiation element and the second radiation element, and includes a bridge element connecting a first point between the first port and the first radiation element and a second point between the second port and the second radiation element to each other. A first reactance element is provided in series with the first radiation element between the first point and the first radiation element, and a second reactance element is provided in series with the second radiation element between the second point and the second radiation element. At least one of the first reactance element and the second reactance element is configured so as to be capable of changing the value of reactance. | 05-01-2014 |
| 20140159986 | RECONFIGURABLE MULTIBAND ANTENNA DECOUPLING NETWORKS - Multiband antenna decoupling networks and systems including multiband antenna decoupling networks are provided herein. A multiband decoupling network is connected to two or more closely spaced antennas. The multiband decoupling network includes lumped components and is reconfigurable to decouple the two or more antennas at a plurality of distinct communication frequency bands. The multiband decoupling network may include tunable lumped components and be reconfigurable through tuning the tunable lumped components. A pi network may be used for the multiband decoupling network. At least one separate impedance-matching network may also be used to match the input impedance of the multiband decoupling network to the output impedance of transmission lines leading to the multiband decoupling network. | 06-12-2014 |
| 20140198009 | ANTENNA DEVICE AND MATCHING CIRCUIT MODULE FOR ANTENNA DEVICE - A low-frequency radiating element and a high-frequency radiating element are configured so as to respectively operate in a relatively low frequency band and a relatively high frequency band that are non-contiguous with each other. A matching circuit is inserted between a transmission/reception circuit and a branching point. A high-frequency variable reactance circuit is inserted between the branching point and the high-frequency radiating element. A low-frequency variable reactance circuit is inserted between the branching point and the low-frequency radiating element. The high-frequency variable reactance circuit and the low-frequency variable reactance circuit are configured such that their reactances can be adjusted independently of each other. | 07-17-2014 |
| 20140218259 | ANTENNA FOR A RADAR DETECTOR - An antenna for a radar detector according to the present invention comprises: a power supply unit; first and second branches branched from the power supply unit; a first band patch antenna connected to the first branch and having first band properties; a second band patch antenna connected to the second branch and having second band properties; a second band stub placed between the power supply unit and the first band patch antenna on the first branch; and a first band stub placed between the power supply unit and the second band patch antenna on the second branch. The antenna for the radar detector according to the present invention may match one power supply unit without damaging the properties of a plurality of antennas that have different frequency properties. | 08-07-2014 |
| 20140240191 | 2-PORT ANTENNA HAVING OPTIMUM IMPEDANCES OF A TRANSMITTER AND A RECEIVER - An antenna is described including a slot formed in a cavity, a substrate configured to cover a portion of the cavity and the slot, and a first port and a second port configured to supply power to the antenna using a first feeding line and a second feeding line. Each of the feeding line and the second feeding line is connected to the slot in a vertical direction and disposed to be separate from one another. A first input impedance of the antenna from the first port differs from a second input impedance of the antenna from the second port. | 08-28-2014 |
| 20140266962 | Power Combiner and Fixed/Adjustable CPL Antennas - An N-way radio frequency (RF) divider/combiner is formed as a combination including an input port electrically coupled to a first 2-way divider/combiner and a second 2-way divider/combiner. An antenna may be coupled to at least one port of the N-way divider. The antenna may be formed as a compound printed loop (CPL) antenna. The N-way RF divider/combiner may be configured to provide N inputs and M output ports, wherein N and M are integers and any of the M output ports and N input ports can be connected to any combinations of devices. Such devices may include, e.g., an antenna including but not limited to a CPL antenna, RF receive port, transmit port, amplifier, RF switch, low noise amplifier (LNA), oscillator, tuning circuit, matching circuit, lumped element circuit, active circuit, diode, adjustable inductive circuit, and adjustable capacitive circuit. | 09-18-2014 |
| 20140313099 | ANTENNA-LIKE MATCHING COMPONENT - An antenna-like matching component is provided, comprising one or more conductive portions formed on a substrate. Shapes and dimensions of the one or more conductive portions are determined to provide impedance matching for one or more antennas coupled to the matching component. | 10-23-2014 |
| 20150022419 | ANTENNA DEVICE - An antenna device includes an antenna and a matching circuit. The antenna includes a first radiating body and a second radiating body. The matching circuit includes a first matching path connected to the first radiating body and a second matching path connected to the second radiating body. The first radiating body and the second radiating body correspondingly operate at a first frequency band and a second frequency band by adjusting impedances of the first matching path and the second matching path. | 01-22-2015 |
| 20150029072 | Power Divider and Radio-Frequency Device - A power divider for transmitting signals of an input terminal to a plurality of output terminals includes a rectangular microstrip line coupled to the input terminal, and a plurality of coupling units conducting the rectangular microstrip line and the plurality of output terminals by electromagnetic coupling, wherein each of the plurality of coupling units and the rectangular microstrip line are separated by a first gap, and each coupling unit includes at least one dual-L resonator disposed between the microstrip line and an output terminal, wherein the first gap and a second gap of each dual-L resonator are related to a power ratio between the input terminal and the plurality of output terminals. | 01-29-2015 |
| 20150048991 | MULTI-FEED LOOP ANTENNA - A multi-feed antenna in provided, including multiple feed elements associated with multiple frequency regions, respectively, and a folded loop element for radiating energy. Each of the multiple feed elements is capacitively coupled to the folded loop element. | 02-19-2015 |
| 20150048992 | BROADBAND MATCHING CIRCUITS - An antenna system including a signal source, at least one antenna coupled to the signal source, a matching circuit connected to the signal source at a first port and to the at least one antenna at a second port and operative to match the at least one antenna to the signal source, the matching circuit having a characteristic impedance with respect to the first port and the second port, real and imaginary parts of the characteristic impedance not being defined by the Hilbert transform. | 02-19-2015 |
| 20150116180 | PHASE-SHIFTING UNIT MODULE, MANUFACTURING METHOD THEREFOR, PHASE-SHIFTING DEVICE, AND ANTENNA - The present invention relates to a phase-shifting unit module, a manufacturing method therefor, a phase shifting device, and an antenna. The phase-shifting unit module comprises a first metal ground plate, a second metal ground plate, an insulating dielectric plate, a slide apparatus, and a fixed transmission line. The insulating dielectric plate is provided thereon with at least one impedance transforming part. The thickness of the impedance transforming part is less than the thickness of the remaining parts of the insulating dielectric plate. The impedance transforming part of the insulating dielectric plate is overlapped with the fixed transmission line during a moving process. The insulating dielectric plate is overlapped only with the fixed transmission line, thus reducing reflected signals, while at the same time reducing losses, and facilitating ultra-wideband design of the phase-shift unit module and of the phase-shifting device. | 04-30-2015 |
| 20150130680 | 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. | 05-14-2015 |
| 20150145744 | TUNABLE ANTENNA - A tunable antenna including a first radiating element, a second radiating element, a connection circuit and a switch circuit is provided. The first radiating element includes a coupling portion and a first feeding portion. The second radiating element includes a second feeding portion, a grounding portion and a radiation portion. The grounding portion is electrically connected to a ground plane, and the radiation portion surrounds the coupling portion to form a first coupling gap and the second coupling gap. The connection circuit is electrically connected to the radiation portion and a state of the connection circuit is changed according to a control signal, so as to adjust a length of the resonant path of the radiation portion. A feeding signal is transmitted to the first feeding portion or the second feeding portion by the switch circuit. | 05-28-2015 |
| 20150318612 | Method and Apparatus for Wideband, Polarimetric Reception of High Frequency Radio Signals - A Method and Apparatus for Wideband, Polarimetric Reception of High Frequency Radio Signals. Traditionally, high frequency (HF) antennas that employ magnetic loops are “tuned” to specific frequency and a single polarization. Modern processing equipment is capable of handling large bandwidths and requires sensitivity for all polarizations at all elevation angles. As a result of these needs, this invention provides an HF antenna that is both wideband and polarimetric. The antenna presented here is sensitive to both linear vertical and horizontal polarizations as well as to circular polarizations for high elevation angles. This makes it optimal as an element in a direction finding array. The antenna should be modular in construction so that it is easily deployed and packed for transport. | 11-05-2015 |
| 20160006408 | MODULE - A module includes: a first duplexer including a common terminal coupled to a first terminal of a diplexer, the diplexer including an antenna terminal coupled to an antenna, the first terminal, and a second terminal; and a second duplexer including a common terminal coupled to the second terminal of the diplexer and having a passband different from a passband of the first duplexer, wherein a frequency at which a reactance component of an impedance is approximately zero and the impedance is less than a reference impedance is not located in a passband of the first duplexer, the impedance being an impedance when the second duplexer is viewed from a node at which the antenna terminal is divided into the first terminal and the second terminal in the diplexer. | 01-07-2016 |
| 20160028157 | MULTI-BAND ANTENNA AND ELECTRONIC DEVICE FOR SUPPORTING THE SAME - A multi-band antenna is provided. The multi-band antenna includes a plurality of radiator patterns that are configured to operate according to different frequency bands, a plurality of feeding units that are respectively connected to different contact points of the antenna radiator for connecting feeding units of the plurality of feeding units to at least one radiator pattern included in the plurality of radiator patterns, and a switching unit configured to switch between feeding units of the plurality of feeding units for connecting at least one radiator pattern included in the plurality of radiator patterns to the switched feeding unit. | 01-28-2016 |
| 20160072194 | MIMO ANTENNA DEVICE - The MIMO antenna device of the present invention includes a first conductor layer having a first opening portion, a first feed line and a second feed line. Each of the first feed line and the second feed line crosses the first opening portion, has a connection point with a first opening edge of the first opening portion, and feeds power to the first conductor layer at the connection point, wherein the first conductor layer includes a first split portion and a second split portion at the first opening edge. The first split portion and the second split portion are cut up to a conductor edge of the first conductor layer. Thus, the MIMO antenna device which is small in size and securing isolation between antenna ports is realized. | 03-10-2016 |
| 20160093948 | ANTENNA SWITCH MODULES AND METHODS OF MAKING THE SAME - Antenna switch modules and methods of making the same are provided. In one implementation, an antenna switch module includes a first transmit and first receive port that are respectively connected to at least one antenna series switches. The first receive and transmit port receive and transmit signals on a first frequency. In one implementation, a second transmit and second receive port are connected to the at least one antenna and transmit and receive signals on a second frequency. In this implementation, the second receive port is connected to the at least one antenna via a series switch but the second transmit port is connected to the at least one antenna via a inductive resonance circuit that provides impedance to isolate the second transmit port when the first transmit port or receive port is transmitting or receiving via the at least one antenna. | 03-31-2016 |
| 20160126921 | DYNAMIC POWER DIVIDER CIRCUITS AND METHODS - The present disclosure includes dynamic power divider circuits and methods. In one embodiment, a dynamic power divider includes first and second quarter wave lines that receive an input signal and produce first and second signal on second terminals of the lines. Dynamic power division of the input signal uses a variable impedance circuit between the second terminal of the first quarter wave line and the second terminal of the second quarter wave line. The variable impedance may reduce impedance between two output paths as the input signal power increases or increase impedance between the output paths as the input signal power decreases. | 05-05-2016 |
| 20160156109 | Low Cost Antenna Array and Methods of Manufacture | 06-02-2016 |
| 20160197405 | ARRAY ANTENNA DEVICE | 07-07-2016 |
