| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 343741000 | High frequency type loops | 71 |
| 20080246675 | Field Winding - The invention concerns an inductor comprising a plurality of so-called first conductors ( | 10-09-2008 |
| 20080291099 | Mobile Wireless Communications Device Comprising Non-Planar Internal Antenna Without Ground Plane Overlap - A mobile wireless communications device may include a housing, a main dielectric substrate carried by the housing, circuitry carried by the main dielectric substrate, and a ground plane conductor on the main dielectric substrate. The mobile wireless communications device may further include an L-shaped dielectric extension comprising a vertical portion extending outwardly from the main dielectric substrate and an overhang portion extending outwardly from the vertical portion and above an adjacent portion of the main dielectric layer. A main loop antenna conductor comprising at least one conductive trace may be relatively positioned on the overhang portion of the L-shaped dielectric extension so as not to overlap the ground plane conductor. | 11-27-2008 |
| 20080291100 | DUAL-BAND LOOP ANTENNA - A dual-band loop antenna for using in a mobile phone for (890˜960 MHz)/DCS(1710˜1880 MHz) application is disclosed to include a ground plane in a substantially rectangular shape having a grounding point and a shorting point, a radiating metallic loop having a feeding end and a shorting end electrically connected to the shorting point of the ground plane and spaced from the feeding end at a predetermined distance, and a radiating metallic plate surrounded by the radiating metallic loop and having one end electrically connected to a vicinity around the shorting end of the radiating metallic loop and spaced from the shorting end of the radiating metallic loop at a distance less than 10 mm. | 11-27-2008 |
| 20080297424 | Ultra Wideband Loop Antenna - The wideband L-loop antenna is presented in this invention. It has excellent performance for lower band of UWB system and has the attractive features of small size, inexpensive, and easy to design. The antenna composed of a single metallic layer is printed on the top of a substrate and a coupled tapered transmission line is printed on the top of the same substrate. A L shape portion is formed by widening partially or wholly the width of a part of antenna elements in comparison with the other part. | 12-04-2008 |
| 20090046026 | CIRCULARLY POLARIZED ANTENNA - To provide a circularly polarized antenna capable of obtaining an excellent axial ratio over a very wide range and having a great gain in a zenith direction. The circularly polarized antenna ( | 02-19-2009 |
| 20090091505 | Antenna device with a single-loop radiating element - An antenna device includes a single-loop radiating element, a radiating arm, a feeding element, and a grounding element. The single-loop radiating element is operable within a first frequency band. The radiating arm extends from the single-loop radiating element and is operable in second frequency band. The feeding element is connected to the single-loop radiating element and the radiating arm. The grounding element is connected to the single-loop radiating element. | 04-09-2009 |
| 20090109105 | Antenna device with a dual-loop radiating element - An antenna device includes a dual-loop radiating element, first and second radiating arms, a feeding element, and a grounding element. The dual-loop radiating element has first and second loops. Each of the first and second radiating arms is disposed in a respective one of the first and second loops. The feeding element interconnects the first and second loops and the first and second radiating arms. The grounding element is connected to the first and second loops. | 04-30-2009 |
| 20090195466 | Antenna For a Wireless Personal Area Network - An antenna includes a loop radiating element, and first and second radiating arms. The loop radiating element includes first andsecond segments, each of which has opposite first and second ends, and an intermediate segment that interconnects the second ends of the first and second segments thereof. The first and second radiating arms extend outwardly and respectively from the first and second ends of the first segment of the loop radiating element. | 08-06-2009 |
| 20090256763 | Multiband folded loop antenna - The present invention relates to a multiband folded loop antenna comprising a dielectric substrate, a ground plane, a radiating portion and a matching circuit. The ground plane is located on the dielectric substrate and has a grounding point. The radiating portion comprises a supporter, a loop strip, and a tuning patch. The loop strip has a length about half wavelength of the antenna's lowest resonant frequency. The loop strip has a feeding end and a grounding end, with the grounding end electrically connected to the grounding point on the ground plane. The loop strip is folded into a three-dimensional structure and is supported by the supporter. The tuning patch is electrically connected to the loop strip. The matching circuit is located on the dielectric substrate with one terminal electrically connected to the feeding end of the loop strip and another terminal to a signal source. | 10-15-2009 |
| 20090273530 | Couple-fed multi-band loop antenna - The present invention is related to a coupled-fed multi-band loop antenna. The antenna comprises a dielectric substrate, a ground plane located on the dielectric substrate and has a grounding point, a radiating portion which comprise a supporter, a coupling trip and a loop strip, and a matching circuit. The coupling strip and loop strip are both located on the supporter, with the coupling strip surrounded by the loop strip. The length of loop strip is about 0.25 wavelength of the antenna's first resonant mode. The loop strip has a first end paralleling with the coupling loop, a second end and a shorting point near the second end and electrically connected to the grounding point on the ground plane. The matching circuit is on the dielectric substrate. One terminal of the matching circuit is connected to the coupling strip, and the other is connected to a signal source. | 11-05-2009 |
| 20090322633 | SMALL MONOPOLE ANTENNA HAVING LOOP ELEMENT INCLUDED FEEDER - Provided is a small monopole antenna having a loop feeder. The small monopole antenna having a loop feeder includes: a loop element forming a loop along a predetermined plane and having a loop feeder at the center thereof; a non-feeding type monopole antenna element including one end connected to a wire of the loop element and other end connected to a ground unit by being bended at the center of the loop element; a ground unit for grounding other end of the non-feeding type monopole antenna; and a first connecting unit for connecting the non-feeding type monopole antenna to an external device for feeding the loop feeder of the loop element through the non-feeding type monopole antenna. | 12-31-2009 |
| 20090322634 | LOOP ANTENNA - Provided is a loop antenna. The loop antenna includes a first antenna element embodied as a coaxial cable, a second antenna element embodied as a line and connected to one end of the first antenna element in series, a third antenna eLement embodied as a line, having one end connected to a ground plane and the other end connected to the other end of the first antenna element in series, and a power feeding cable for supplying power to the second antenna element. | 12-31-2009 |
| 20100007567 | ANTENNA FOR AN RFID TRANSPONDER AND RFID TRANSPONDER - An antenna ( | 01-14-2010 |
| 20100171672 | Loop Antenna for Wireless Network - To improve vertical efficiency, the present invention provides a loop antenna for a wireless network, which includes a feeding terminal for receiving a feeding signal, a shorting-to-ground terminal for providing grounding, a metal bar formed on a first plane and surrounding a center point, a first metal arm formed on a second plane associated with the first plane and coupled between an terminal of the metal bar and the feeding terminal, and a second metal arm formed on a third plane associated with the first plane and coupled between another terminal of the metal bar and the shorting-to-ground terminal. | 07-08-2010 |
| 20100201586 | METHOD TO STRIP A PORTION OF AN INSULATED WIRE - According to the method of stripping a portion of a wire of the invention, the insulated wire including the wire core are first flattened before the insulation is stripped away. The flattening eases the stripping as the insulation is partially cracked and dissociated of the wire core, and the stripping is more efficiently applied on a flat surface. A wire stripping machine and a transponder antenna with stripped portions are also claim as being part of the invention. | 08-12-2010 |
| 20100245193 | ONE-WAVELENGTH LOOP ANTENNA - A one-wavelength loop antenna includes a looped antenna element having a length equivalent to one wavelength related to communication; and a feeding cable for feeding current to a feeding point on the antenna element, wherein an inner conductor is disposed inside an outer conductor in a section between the feeding point and an extraction position of the feeding cable distanced from the feeding point by ⅛ wavelength or more, at least one of the outer and inner conductors functioning as the feeding cable. | 09-30-2010 |
| 20100277382 | ANTENNA SHEET, TRANSPONDER,AND BOOKLET - An antenna sheet is provided with a flexible substrate, and an antenna coil, which is connected to a terminal section of an external IC module having an IC chip and is arranged on the substrate. On the substrate, a storing section that stores at least a part of the IC module is formed. | 11-04-2010 |
| 20110068987 | Multiband RFID tag - An RFID tag communicating with a wireless reader interrogator on more than one frequency band. In one embodiment the tag contains independent sensor circuits for a ultra high frequency UHF band and a lower frequency band. The UHF antenna element used in the tag is a double-resonant antenna typically operating in the 860-960 MHz frequency range providing both near and far field sensitivity. Separate resonant antenna structures a the lower frequency band is connected in series with the UHF antenna substructure. The high frequency HF antenna element contains a coil for magnetic induction pickup of signals typically in the 7-14 MHz frequency band but can also be used for the entire spectral range 100 KHz to 100 MHz. The tag antenna is an integrated structure providing for operation in both the UHF and a lower frequency band. In a separate embodiment the tag is configured with the UHF double-dipole antenna structure only and operates in a single UHF band. | 03-24-2011 |
| 20110102280 | ANTENNA ASSEMBLIES WITH ANTENNA ELEMENTS AND REFLECTORS - According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes at least one tapered loop antenna element having a generally annular shape with an opening. An antenna assembly may also include a rotatably convertible support including a base and an upper portion coupled to a tapered loop antenna element in some embodiments. The upper portion is rotatable relative to the base between a first configuration for supporting the tapered loop antenna element on a horizontal surface and a second configuration for supporting the tapered loop antenna element from a vertical surface. | 05-05-2011 |
| 20110199272 | FIELD-CONFINED PRINTED CIRCUIT BOARD-PRINTED ANTENNA FOR RADIO FREQUENCY FRONT END INTEGRATED CIRCUITS - A printed circuit board (PCB)-printed antenna is disclosed. There is a printed circuit board substrate, and an electrically conductive radiating element fixed thereto. The radiating element is defined by a first main branch segment, a second main branch segment in a spaced parallel relation thereto, and a perpendicular bend segment connecting the first and second main branch segments. A feed line is electrically connected to the radiating element, and defines a feed port. Additionally, a ground line is electrically connected to the radiating element, and defines a ground port. A high frequency current loop is successively formed with an origin from the feed line, to the first main branch segment, to the bend segment, to the second main branch segment, and with a terminus of the ground line. The high frequency current loop confines the current and electromagnetic fields on the radiating element. | 08-18-2011 |
| 20120013513 | LOOP ANTENNA - A loop antenna includes a parasitic element arranged at a position almost concentric to a loop element and having an opening portion smaller than the half perimeter of the loop element at a position opposite to the feeding point of the loop element. | 01-19-2012 |
| 20120081256 | ANTENNA APPARATUS - An antenna apparatus is provided with an antenna cover formed so as to widen toward the rear and to rise in a streamlined shape toward the rear along the longitudinal central axis, an antenna base to which the antenna cover is attached in a watertight fashion, and an antenna section accommodated in a space formed by the antenna cover and the antenna base. The antenna section is set upright on the antenna base, and has a configuration in which an antenna wire of predetermined length corresponding to a frequency band of medium frequency wave to very high frequency wave is wound vertically at a predetermined inter-wire pitch around a winding member accommodated in a space corresponding to the raised section of the antenna cover. | 04-05-2012 |
| 20120146864 | ANTENNA - A radiation section of an antenna includes a first connection portion and a second connection portion, and is in a loop form having a plate shape. A switch unit couples the second connection portion to the first connection portion e.g. according to a signal input from the outside. Further, the switch unit couples the second connection portion e.g. to ground formed on a reverse side of a substrate according to a signal input from the outside. | 06-14-2012 |
| 20120169553 | ANTENNA AND WIRELESS IC DEVICE - An antenna includes two feeding points, and includes a loop-shaped loop electrode and an auxiliary electrode electrically connected to the loop electrode and located at a position along the outer circumference of the loop electrode. The first end portion of the auxiliary electrode is electrically connected to the vicinity of one feeding point of the loop electrode. The second end portion of the auxiliary electrode is open. A resonant circuit is defined by the auxiliary electrode and the loop electrode to enhance the impedance of the antenna, compared with a case in which the antenna is configured using the simple loop electrode, and it is easy to achieve impedance matching with the wireless IC. | 07-05-2012 |
| 20120218157 | ANTENNA DEVICE - An antenna device includes a loop-shaped element radiating a radio wave of at least wavelength λ and having an electrical length of m×λ; a first power feeder exciting the loop-shaped element via voltage or current coupling by using a first electrical signal for radiating the radio wave; and a second power feeder exciting the loop-shaped element via a coupling method that is the same type as the first power feeder by using a second electrical signal for radiating a radio wave of wavelength λ/(2×p−1) at a portion that becomes a node of a standing wave that is formed with the first power feeder as an anti-node and that is based on the first electrical signal, here, “m” and “p” are natural numbers. | 08-30-2012 |
| 20130033403 | ANTENNA AND MOBILE TERMINAL INCLUDING THE SAME - Provided are an antenna and a mobile terminal including the antenna. The antenna includes a loop antenna, a solenoid, and a plurality of connections. The loop antenna is installed on a mobile terminal. The solenoid is connected in parallel to the loop antenna, and receives power. The connections connect the loop antenna to the solenoid. Accordingly, the degree of freedom of an antenna shape and a recognition distance of the antenna are improved. | 02-07-2013 |
| 20130207857 | HIGH-FREQUENCY ANTENNA - The invention relates to an inductive antenna formed from at least two pairs of segments ( | 08-15-2013 |
| 20140028512 | EMITTER FOR VERTICALLY POLARIZED WIRELESS SIGNALS - An electric emitter for vertically polarised wireless signals for a communication service with a narrow frequency bandwidth around a frequency fo with free-space wavelength λo in the gigahertz range, comprising at least one substantially horizontally oriented conductor loop arranged above a conductive base area, with an emitter infeed point for electromagnetic excitation of the loop relative to the base area. The loop is formed by a circularly closed ring conductor running in a substantially horizontal plane with a height h of less than λo/6 over the base area. Distributed over the periphery of the ring conductor are at least three vertical emitters electromagnetically coupled to the ring conductor coupling points and running to the base area, wherein at least two of the emitters are electromagnetically coupled to the base area at earth terminal points, and a vertical emitter is excited via the emitter infeed point at the lower end thereof. | 01-30-2014 |
| 20140292597 | ANTENNA ASSEMBLIES WITH TAPERED LOOP ANTENNA ELEMENTS - According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes one or more tapered loop antenna elements. | 10-02-2014 |
| 20160172759 | RFID System With an Eddy Current Trap | 06-16-2016 |
| 343742000 | Plural | 34 |
| 20080316128 | Orientation-independent antenna (orian) - An orientation-independent antenna presents a circular polarization characteristic to incoming waves such that these waves are detected regardless or polarization and angle of arrival. The antenna includes crossed vertical loops and a horizontal loop, with the loops being phased to provide the circular polarization characteristic. In one embodiment, the antenna includes a number of elements on the faces of a cube, or the elements are positioned on the surface of a sphere. In another embodiment, the antenna is given both a right hand circular polarization characteristic and a left hand circular polarization characteristic in two different channels to provide for double the data throughput. | 12-25-2008 |
| 20090009414 | ANTENNA ARRAY - An antenna array has multiple individual antennas arranged next to one another. The individual antennas are respectively arranged within a radio-frequency, closed conductor loop, with capacitors inserted in each conductor loop. | 01-08-2009 |
| 20090009415 | RFID antenna and methods - An antenna ( | 01-08-2009 |
| 20090015496 | PLANAR CIRCULARLY POLARIZED ANTENNAS - A planar circularly polarized antenna comprises at least one coplanar waveguide feed line and a plurality of driven loops electrically connected to the feed line, wherein the driven loops and the feed line are substantially coplanar. At least one of the plurality of driven loops may be of a size different from at least another one of the plurality of driven loops and at least one of the plurality of driven loops may have a resonant frequency different from at least another one of the plurality of driven loops. | 01-15-2009 |
| 20090027285 | ANTENNA DEVICE AND RADIO COMMUNICATION SYSTEM - An antenna device includes: a substrate; first and a second antenna units which are wound coaxially on a surface of the substrate, and include a plurality of antenna elements; and a feeder which feeds power only to the first antenna unit. A separation distance between the antenna elements in each of the first and second antenna units is substantially the same. | 01-29-2009 |
| 20090058743 | Loop Antenna And Loop Antenna Manufacturing Method - A loop antenna is disclosed which can prevent the occurrence of variance in the loop length of the installed loop antenna element, and a method for manufacturing the loop antenna. The loop antenna comprises electrical wires constituting the antenna element and a housing that holds the electrical wires. Furthermore, the housing is formed with first guide grooves that guide the first end portions of the electrical wires and that have wall surfaces against which the tip ends on the side of the first end portions of the electrical wires abut, and second guide grooves that guide the second end portions of the electrical wires and that have wall surfaces against which the tip ends on the side of the second end portions of the electrical wires abut. Moreover, crimp parts with which the end portions of the electrical wires are connected by crimping are provided inside the respective guide grooves. In addition, a pair of contact parts that make contact with external terminals are respectively connected to the crimp parts. | 03-05-2009 |
| 20090058744 | STORAGE CABINET WITH IMPROVED RFID ANTENNA SYSTEM - A system for reading RFID tags of articles within a cabinet includes a repositionable shelf. The repositionable shelf includes an antenna assembly having three antenna pairs. Each antenna pair has a loop antenna and a figure eight antenna. The antenna pairs are on a PC board. The PC board includes an RJ45 connector which provides both power to the antenna assembly as well as a communication interface for the antenna assembly. The RJ45 connector could be used to provide the RF signals from the antenna to a reader. The system could also include a repositionable divider for placement perpendicular to the repositionable shelf. The repositionable divider also includes a loop antenna and a figure eight antenna. | 03-05-2009 |
| 20090096691 | Orientation-independent antenna (ORIAN) with shorts - An orientation-independent antenna that presents a circular polarization characteristic to incoming waves such that these waves are detected regardless or polarization and angle of arrival is provided with shorts across elements thereof that provide for crossed vertical loops and a horizontal loop to lower the VSWR at the lower frequencies of the antenna. The antenna includes crossed vertical loops and a horizontal loop, with the loops being phased to provide the circular polarization characteristic. In one embodiment, the antenna includes a number of elements on the faces of a cube, or the elements are positioned on the surface of a sphere. In another embodiment, the antenna is given both a right hand circular polarization characteristic and a left hand circular polarization characteristic in two different channels to provide for double the data throughput. | 04-16-2009 |
| 20090160718 | PLANE FOCUS ANTENNA - A plane focus antenna includes a plurality of stacking substrates. Each substrate has one side formed a periodic array plane consisting of a plurality of resonant coils and other side laid a metal wire formed in a periodic structure. The magnetic permeability of the stacking double split-ring resonators is negative and the electric permittivity of the metal wire is negative at the same time that can interact with electromagnetic waves to fabricate a negative refractive index material (NRIM) to form the plane focus antenna. By means of the special refractive effect of the NRIM receiving signals can be converged in a very small area to enhance the receiving signals. The plane antenna also does not generate distortion. | 06-25-2009 |
| 20090160719 | RADIO FREQUENCY IC DEVICE - A radio frequency IC device includes a radio frequency IC chip, a feeder circuit substrate, and a radiating plate. The feeder circuit substrate includes a feeder circuit that electrically connects to the radio IC chip and that includes a resonance circuit and/or a matching circuit including inductance elements. The feeder circuit substrate is bonded to the radiating plate, which radiates a transmission signal supplied from the feeder circuit and supplies a received signal to the feeder circuit. The inductance elements are arranged in spiral patterns wound in opposite directions and couple to each other in opposite phases. The radio frequency IC device is able to obtain a radio frequency IC device that is not susceptible to being affected by a usage environment, minimizes variations in radiation characteristics, and can be used in a wide frequency band. | 06-25-2009 |
| 20090243947 | Antenna With First and Second Loop Radiating Elements - An antenna includes a dielectric substrate, first and second feeding points, first and second grounding points, first and second loop radiating elements, and a grounding element. The first and second feeding points and the first and second grounding points are formed on the dielectric substrate. The first and second radiating elements are spaced apart from each other and have a shape and a size that are identical. Each of the first and second loop radiating elements is operable in a frequency range, and has a feeding end coupled to a respective one of the first and second feeding points, and a grounding end coupled to a respective one of the first and second grounding points. The grounding element is formed on the dielectric substrate and is disposed between the first and second loop radiating elements. | 10-01-2009 |
| 20090267850 | CIRCULARLY POLARIZED LOOP REFLECTOR ANTENNA AND ASSOCIATED METHODS - The antenna may include a planar reflector having a plurality of loop electrical conductors defining an array of parasitically drivable antenna elements, and a circularly polarized antenna feed spaced from the planar reflector to parasitically drive the array of parasitically drivable antenna elements and impart a traveling wave current distribution therein. The antenna may have properties that are hybrid between parabolic reflectors and driven arrays, providing a relatively compact circularly polarized antenna capable of having low wind load. Closed circuit or loop elements may provide increased gain over antennas using dipole turnstile reflector elements. | 10-29-2009 |
| 20090295658 | LOOP ANTENNA DEVICE WITH LARGE OPENING AREA - A loop antenna device is disclosed with an increased number of turns, a large opening area, and a high Q value. The loop antenna device includes: a conductor wound spirally on an insulating substrate, wherein the conductor is constituted by a plurality of loops which are connected and each of which has a substantially rectangular shape with predetermined height and width in a cross-sectional view, and with regard to the adjacent loops of which height portions face each other, a height of the one loop is smaller than a height of the other loop, and a width of the other loop is smaller than a width of the one loop. | 12-03-2009 |
| 20090315792 | ANTENNA APPARATUS UTILIZING SMALL LOOP ANTENNA ELEMENT HAVING MUNUTE LENGTH AND TWO FEEDING POINTS - The small loop antenna element of the antenna apparatus includes loop antenna portions that have a predetermined loop plane and radiate a first polarized wave component parallel to the loop plane, and at least one connecting conductor that is provided in a direction orthogonal to the loop plane and connects the plurality of loop plane portions to radiate a second polarized wave component orthogonal to the first polarized wave component. In the case of the antenna apparatus located adjacent to a conductor plate, by making the maximum value of the antenna gain of the first polarized wave component and the maximum value of the antenna gain of the second polarized wave component substantially identical when the distance between the antenna apparatus and the conductor plate is changed, a composite component of the first and second polarized wave components are made substantially constant regardless of the distance. | 12-24-2009 |
| 20100001914 | ANTENNA WITH IMPROVED ILLUMINATION EFFICIENCY - An antenna is provided including a first loop having at least one first conductor and a second loop having at least one second conductor, the second conductor connected to the first conductor. The first loop has a first enclosed area defined by the area inside the perimeter of the first loop and a first phase center point defined by the geometric center point of the first enclosed area. The second loop is coupled to the first loop and is disposed a distance from and substantially parallel to the first loop. The second loop has a second enclosed area substantially equal to the first enclosed area and a second phase center point. A line normal to the plane of the first loop passes through the first and second phase center points. The first and second loops are disposed to substantially reduce the far-field illumination, while substantially maintaining the near-field illumination at effective radio frequency identification system operational levels. The antenna may be used to energize devices through inductive coupling. | 01-07-2010 |
| 20100053006 | Antenna Device - An antenna device includes a plurality of loop elements. The loop elements are made of conductive material, and constitute a planar antenna element having N-fold rotationally symmetric shape with respect to a center portion of the planar antenna element, the N being an integer of three or more. Each of the loop elements includes at least two first elements extending in a first direction parallel to a radial direction of the planar antenna element and at least one second element extending in a circumferential direction of the planar antenna element. A ground plate is made of conductive material and opposes the planar antenna element. A power feeding line extends from the ground plate to the planar antenna element, and is electrically connected to the planar antenna element at the center portion. | 03-04-2010 |
| 20100066619 | MAGNETIC COUPLING DEVICE AND READING DEVICE - A magnetic coupling device that supplies a high-frequency electromagnetic field appropriate for sensing and reading of information to a fine magnetic coupling circuit component contained in/added to individual banknotes, securities, or any other valuable sheet-like or plate-like objects, ensures sufficient magnetic coupling, and supplies sufficient electric power; and a reading device having equivalent functions are provided. | 03-18-2010 |
| 20100134366 | Broadband multi-loop antenna for mobile communication device - A broadband multi-signal loop antenna used in a mobile terminal comprises a conductive part and a supporter supporting the conductive part. The said conductive part is electrically connected to the substrate of the mobile terminal. The said conductive part includes at least two signal loops which start at a common feed point and end at the ground points, wherein at least two signal loops each has a ground point and the ground points are located at different physical positions. The antenna can resonate at multi-band. | 06-03-2010 |
| 20100207831 | Loop Dipole Antenna Module - The present invention discloses an antenna module including two double-ring antennas installed at an angle of 90° with respect to a surface of the panel which is comprised of a printed circuit board, two feedback nodes disposed on the panel and at positions corresponding to the two double-ring antennas respectively, and a metal reflecting plate installed on a backside of the panel. The whole antenna module can receive vertical and horizontal signals on the surface of the metal reflecting plate by using the double-ring antennas with the two feedback nodes respectively to achieve the expected bandwidth and the required bidipolarization effects and accomplish a better gain. | 08-19-2010 |
| 20100231472 | ORTHOGONAL TUNABLE ANTENNA ARRAY FOR WIRELESS COMMUNICATION DEVICES - A multi-band antenna array for use in wireless communication devices with up to three simultaneous operating modes with improved antenna efficiency and reduced antenna coupling across a broad range of operative frequency bands with reduced physical size is described. The multi-band antenna array includes at least two loop antenna elements, each of which is orthogonal to, and arranged in an embedded manner, relative to each other. Each loop antenna in the multi-band antenna array may include a corresponding tuning element for tuning to a desired resonant frequency, and be comprised of an upper and lower half with the corresponding tuning element coupled therebetween. | 09-16-2010 |
| 20100271275 | HDTV Antenna - An antenna is adapted for receiving high-definition television HDTV signals and includes a first antenna coil, a second antenna coil, and transformer adapter. A pair of wire leads connect the transformer adapter to the first antenna coil and the second antenna coil. An output from the transformer adapter is for attaching to high definition television set. The antenna pair of coils are preferably made of copper. A width (“W”) between the first antenna coil and the second antenna coil has a range of (2 cm-6 cm). A thickness (“T”) of the wire has a range of approximately 1 mm (0.5 mm-3 mm). The antenna can be used in horizontal configuration. | 10-28-2010 |
| 20100271276 | ANTENNA IN WHICH SQUINT IS IMPROVED - An antenna for improving squint using radiation devices having different kind is disclosed. The antenna includes at least two radiation devices configured to have a beam pointing line, respectively. Here, kind of one or more of the radiation devices has different from that of the other radiation device. | 10-28-2010 |
| 20100315302 | ELECTROMAGNETIC REACTIVE EDGE TREATMENT - An electromagnetic reactive edge treatment including an array of capacitively-loaded loops is disposed at or near an edge of a conductive wedge. The axes of the loops are oriented parallel to the edge of the wedge. This edge treatment may enhance or suppress the hard diffraction coefficient, depending on the resonant frequency f | 12-16-2010 |
| 20100328173 | SINGLE FEED PLANAR DUAL-POLARIZATION MULTI-LOOP ELEMENT ANTENNA - Dual polarization in an antenna structure that results from a number of radiating elements arranged in a loop configuration. The antenna structure is excited by a single coaxial feedline in an interior portion of the antenna structure. The antenna structure may include a ground plane that enables a directional radiation pattern. The antenna structure may also be operational without a ground plane to enable an omnidirectional radiation pattern. The antenna structure may be configured in a number of loop configurations electrically connected to each other by a number of microstrip loops extending in a horizontal and vertical planar direction. | 12-30-2010 |
| 20110102281 | MULTI-LOOP ANTENNA MODULE WITH WIDE BEAMWIDTH - A multi-loop antenna module with wide beamwidth includes a grounding unit and a plurality of first loop units and second loop units. The first loop units are vertically disposed on outer peripheral sides of the grounding unit. Each first loop unit has a first shorting pin disposed on the grounding unit, a first feeding pin separated from the first shorting pin and suspended above the grounding unit, and a first loop radiating body connected between the first shorting pin and the first feeding pin. The second loop units are vertically disposed on outer peripheral sides of the grounding unit. Each second loop unit has a second shorting pin disposed on the grounding unit, a second feeding pin separated from the second shorting pin and suspended above the grounding unit, and a second loop radiating body connected between the second shorting pin and the second feeding pin. | 05-05-2011 |
| 20110128199 | FIELD-CONFINED WIDEBAND ANTENNA FOR RADIO FREQUENCY FRONT END INTEGRATED CIRCUITS - A field-confined wideband antenna assembly is disclosed. The antenna assembly includes a radiating element with a planar body that defines a first confining slot. The dimensions of the first confining slot correspond to a first set of resonance frequencies of the radiating element. A feeding line extends from the radiating element in an angularly offset relationship to the planar body. A first grounding line extends from the radiating element in an angularly offset relationship to the first body. A dielectric assembly supports the planar body of the radiating element. There is a first high frequency current loop that is formed from the feeding line to the radiating element about the first confining slot and to the first grounding line. With this, the first high frequency current loop confines current and electric fields on the radiating element. | 06-02-2011 |
| 20120092222 | ANTENNA AND ANTENNA MODULE - An antenna includes a flexible sheet that includes a first main surface including a first coil electrode located thereon and a second main surface including a second coil electrode located thereon. The first and second coil electrodes are wound in opposite directions when viewed from different directions. A first end of the first coil electrode faces a first end of the second coil electrode through the flexible sheet. Similarly, a second end of the first coil electrode faces a second end of the second coil electrode through the flexible sheet. The first and second coil electrodes define an inductor, the first ends of the first and second coil electrodes define a capacitor, and the second ends of the first and second coil electrodes define a capacitor whereby a resonant antenna is provided. | 04-19-2012 |
| 20120169554 | ULTRA-WIDEBAND, LOW PROFILE ANTENNA - An ultra-wideband, low profile antenna is provided. The antenna includes a ground plane substrate and a radiating element. The radiating element includes at least two loop sections, wherein each of the at least two loop sections is electrically connected to a feed network and to the ground plane substrate. The radiating element is configured to radiate over a first frequency band when the feed network provides an in-phase input signal to the at least two loop sections and to radiate over a second frequency band when the feed network provides an out-of-phase input signal to the at least two loop sections. The second frequency band includes a lower frequency than the first frequency band. | 07-05-2012 |
| 20120206309 | METHOD FOR CONTROLLING FAR FIELD RADIATION FROM AN ANTENNA - An adjustable antenna enables far-field radiation from the antenna to be reduced, minimized, and/or substantially eliminated while near-field radiation from the antenna may be substantially maintained. In some embodiments, an antenna includes a first loop defining a first enclosed area and having a first phase center point defined by the geometric center point of the first enclosed area, a second loop coupled to the first loop and disposed substantially parallel to the first loop, the second loop defining a second enclosed area and a second phase center point defined by the geometric center point of the second enclosed area, and a third loop coupled to the first loop and the second loop and substantially parallel to the first loop, the third loop defining a third enclosed area and a third phase center point defined by the geometric center point of the third enclosed area. The antenna includes a plurality of adjuster elements coupled to at least one of the first loop, the second loop, or the third loop, herein known as the adjustable loop, and configured to expand or contract the enclosed area of the adjustable loop. A line normal to the plane of the first loop passes through the first phase center point of the first loop, the second phase center point of the second loop, and the third phase center point of the third loop, and a current supplied to the antenna flows in a first polarity in the third loop and flows in a second polarity in the first loop and the second loop, the first and second polarities being opposite to each other. | 08-16-2012 |
| 20120212383 | TRAVELLING WAVE DISTRIBUTED ACTIVE ANTENNA RADIATOR STRUCTURES, HIGH FREQUENCY POWER GENERATION AND QUASI-OPTICAL FILTERING - An integrated distributed active radiator (DAR) device includes first and second conductors disposed adjacent to each other. The conductors define curves which close on themselves to within a distance of a gap. The first conductor first end is electrically coupled to the second conductor second end across the gap. The second conductor first end is electrically coupled to the first conductor second end across the gap. At least one active element is configured to produce a self-oscillation current at a frequency f | 08-23-2012 |
| 20120223867 | Antenna Device and Portable Radio Communication Device Comprising Such Antenna Device - Exemplary embodiments are disclosed herein of antenna devices for radio communication devices. In an exemplary embodiment, an antenna device for a radio communication device is adapted for receiving radio signals in at least a first frequency band and a separate second frequency band. The antenna device includes a half-loop radiating. The first frequency band includes the first harmonic for the half-loop radiating element. The half-loop radiating element includes an inductive loading at a high current section for the third harmonic for the half-loop radiating element, such that the second frequency band includes the third harmonic for the half-loop radiating element. | 09-06-2012 |
| 20130257665 | ANTENNA STRUCTURE - An antenna structure, used for being fed with a signal, includes a grounding portion, a radiation portion, and a frequency adjusting portion. The radiation portion has a loop segment, a high frequency segment, and a low frequency segment. The loop segment has a feeding sub-segment adjacent to the grounding portion and used for being fed with the signal. The high and low frequency segments are extended from opposite ends of the loop segment away from each other. The frequency adjusting portion is connected to the loop segment and the grounding portion. A high frequency dual-path is formed from a feeding point of the feeding sub-segment and extends along the loop segment in two different directions to the high frequency segment. A low frequency dual-path is formed from the feeding point and extends along the loop segment in two different directions to the low frequency segment. | 10-03-2013 |
| 20150097741 | Antenna with Multifrequency Capability for Miniaturized Applications - A circuit arrangement includes a first antenna configured to couple to an electromagnetic field from a first frequency band and a second antenna configured to couple to an electromagnetic field from a second frequency band, the second frequency band being different than the first frequency band. The first antenna is connected in series with the second antenna as an electrical supply line therefor. | 04-09-2015 |
| 20150145736 | NEAR FIELD COMMUNICATION ANTENNA - A near field communication (NFC) antenna including a dielectric substrate, a coil, and a coupling structure is provided. The coil is disposed on the dielectric substrate. The coupling structure includes at least one coupling branch. Two ends of the coupling branch are respectively connected to two different connection points on the coil. The coupling structure is configured to improve the isotropic characteristics of the NFC antenna. | 05-28-2015 |
| 343743000 | Feed coupling at spaced points on loop | 4 |
| 20100245194 | LOOP ANTENNA UNIT - A loop antenna unit includes a looped antenna element; a first feeding cable that feeds power to a first feeding point on the antenna element; a second feeding cable that feeds power to a second feeding point on the antenna element; and a circuit switching portion that disconnects a feeding cable corresponding to an unused feeding point out of the first feeding point and the second feeding point, from the unused feeding point, wherein the feeding cable transmits a signal generated by superposing a high-frequency signal related to communication by the loop antenna unit on a dc signal for control over switching by the circuit switching portion, and wherein the loop antenna unit further includes: a first filter that extracts a high-frequency signal related to communication by the loop antenna unit from a signal supplied through the feeding cable and supplies the extracted high-frequency signal to the antenna element; and a second filter that extracts a dc signal for control over switching by the circuit switching portion from a signal supplied through the feeding cable and supplies the extracted dc signal to the circuit switching portion, the first filter and the second filter being provided for the first feeding cable and for the second feeding cable, respectively. | 09-30-2010 |
| 20130201065 | WIRELESS COMMUNICATIONS DEVICE HAVING LOOP ANTENNA WITH FOUR SPACED APART COUPLING POINTS AND ASSOCIATED METHODS - A wireless communications device includes wireless communications circuitry and an antenna coupled to the wireless communications circuitry. The antenna includes a loop electrical conductor having four spaced apart gaps therein defining four respective spaced apart coupling points, and a feed assembly. The feed assembly includes at least one antenna feed, and four signal feed lines, each signal feed line coupled between the at least one antenna feed and a respective one of the four coupling points. The antenna may provide linear polarization, circular polarization, and dual polarization. | 08-08-2013 |
| 20130201066 | WIRELESS COMMUNICATIONS DEVICE HAVING LOOP ANTENNA WITH FOUR SPACED APART COUPLING POINTS AND REFLECTOR AND ASSOCIATED METHODS - A wireless communications device may include wireless communications circuitry and an antenna coupled to the wireless communications circuitry. The antenna may include a loop electrical conductor having four spaced apart gaps therein defining four respective spaced apart coupling points, and a feed assembly. The feed assembly may include at least one antenna feed, and a feed network coupled between the at least one antenna feed and the four coupling points. The antenna may also include a reflector surrounding the loop electrical conductor. | 08-08-2013 |
| 20140361942 | MULTIPLE POLARIZATION LOOP ANTENNA AND ASSOCIATED METHODS - The multiple polarization loop antenna includes a circularly polarized loop antenna, which may utilize a loop electrical conductor and two signal feedpoints along the loop electrical conductor separated by one quarter of the length of the loop circumference for a signal feedpoint phase angle input difference of 90 degrees. Each of the signal feedpoints may include a loop discontinuity, so that at least one signal source coupled thereto provides circular polarization from the loop electrical conductor. The circularly polarized loop antenna provides an increase in gain and decrease in size relative to the dipole turnstile. It can provide two orthogonal polarizations from two isolated ports, and the polarizations may be dual linear or dual circular. | 12-11-2014 |
| 343744000 | With series reactance in loop | 3 |
| 20090160720 | UHF/VHF PLANAR ANTENNA DEVICE, NOTABLY FOR PORTABLE ELECTRONIC EQUIPMENT - A planar antenna device (AD) for a TV receiver (R) comprises i) a loop antenna (LA) comprising first (E | 06-25-2009 |
| 20110215978 | ANTENNA FOR RECEPTION OF CIRCULARLY POLARIZED SATELLITE RADIO SIGNALS - An antenna receiving circularly polarized satellite radio signals has a conductive base surface and a conductor loop oriented horizontally above the base. The loop is configured as a ring line radiator, incorporating a polygonal or circular closed ring line, in a horizontal plane above the conductive base surface. The conductor loop is electromagnetically excited by a device including an antenna connector. The ring line radiator forms a resonance structure that is electromagnetically excited, whereby the current distribution of a running line wave in a single rotation direction occurs on the ring line. At least one vertical radiator extends toward the conductive base surface and is disposed on the ring line radiator, wherein the vertical radiator is electromagnetically coupled both with the ring line radiator and the electrically conductive base surface, to support the vertically oriented component of the electromagnetic field. | 09-08-2011 |
| 20140203979 | ANTENNA FOR RECEPTION OF CIRCULARLY POLARIZED SATELLITE RADIO SIGNALS - An antenna for receiving circularly polarized satellite radio signals has a conductive base surface and at least one a conductor loop oriented horizontally above the base surface by a height h. The conductor loop is configured as a polygonal or circular closed ring line radiator. The ring line radiator forms a resonant structure that is electrically excited so that the current distribution of a running line wave in a single rotation direction occurs on the ring line, wherein the phase difference of which, over one revolution, amounts to essentially 2π. A vertical radiator extends between the conductive base surface and the circumference of the ring line radiator. The height h is smaller than ⅕ of the free-space wavelength λ. | 07-24-2014 |
