Abstract: Methods and apparatus are provided for adjusting the electromagnetic fields produced by telephones or other mobile devices capable of wireless communication. A wireless communication device includes a substrate having a ground plane. An antenna is coupled to the ground plane, and electrical currents are produced in the ground plane during operation of the antenna. A switchable counterpoise circuit that includes a conducting element and an inductor in series is provided on the substrate. The switchable counterpoise is selectively coupled to the ground plane based upon an operating mode of the wireless communications device, thereby adjusting the electrical currents flowing in the ground plane when the counterpoise is active. The changes in the ground plane currents can produce adjustments in the electromagnetic fields produced by the device, thereby improving hearing aid compatibility (HAC) of the device.

Abstract: An exemplary embodiment includes a multiple-turn loop antenna arrangement comprising a multiple-turn loop element. The multiple-turn loop element is arranged in a first layer. A ground plane element is arranged in a second layer. The first and second layers are arranged in parallel. The multiple-turn loop element is arranged on top of the ground plane element. The ground plane element comprises slots interrupting eddy currents in the ground plane element, which would short signals in the multiple-turn loop element.

Abstract: A transceiver, including a multi-layer printed circuit board including a layer that serves as a first ground plane, and an antenna for transmitting and receiving radio signals, a second ground plane, and at least one ground contact for connecting the first ground plane and the second ground plane, wherein the first ground plane is too short for the antenna to resonate at a desired frequency, but the first and second ground planes, when connected, provide a combined ground plane sufficient for the antenna to resonate at the desired frequency.

Abstract: Embodiments of a MEMS antenna are presented. Additionally, systems incorporating embodiments of a MEMS antenna are presented. Methods of manufacturing a MEMS antenna are also presented. In one embodiment, the MEMS antenna includes a substrate, a metallic layer disposed over the substrate, the metallic layer forming a ground plane, the ground plane having a region defining a gap disposed therein, a protrusion disposed over the substrate within the region defining the gap, the protrusion extending outwardly from the ground plane, the protrusion having a length and a width, the length being greater than the width, and a first electromagnetic radiator element disposed over the protrusion, the first electromagnetic element having a length and a width, the length being greater than the width.

Abstract: Systems and methods for providing a reconfigurable groundplane are provided. In one embodiment, the invention relates to an antenna assembly having a reconfigurable groundplane, the assembly including a radio frequency (RF) feed, a plurality of radiating elements, a plurality of interconnects, each coupling one of the plurality of radiating elements to the RF feed, a first groundplane positioned between the RF feed and the plurality of radiating elements, a second groundplane positioned between the RF feed and the plurality of radiating elements, the second groundplane including at least one cavity for enclosing a liquid metal.

Abstract: An antenna assembly includes first and second antennas each generating a resonant mode to cover an operating bandwidth, and a transmission line. The first includes a first radiation unit with a feed-in portion coupled to a first feed portion in contact with a core wire of a coaxial cable and a first grounding portion. The second antenna includes a second radiation unit with a second feed-in portion coupled to a second feed portion in contact with a conductive shielding layer of the coaxial cable and a second grounding portion. The transmission line includes first and second connecting portions coupled respectively to the second feed portion of the second feed-in portion. When a signal within the operating bandwidth is transmitted through the coaxial cable, the energy of the signal is distributed among the first and second antennas.

Abstract: A communication electronic device includes an antenna structure at least having a grounding element and an antenna element. One edge of the grounding element has a notch, and the antenna element is disposed in the notch of the grounding element. The antenna element includes a feeding portion and a shorting portion, wherein the feeding portion at least includes a first segment, a second segment, and a third segment. There is a first coupling gap between the second segment of the feeding portion and a first shorting segment of the shorting portion which includes an open end of the shorting portion. There is a second coupling gap between the third segment of the feeding portion and a second shorting segment of a shorting portion which includes the shorting end of the shorting portion.

Abstract: Array packages and methods for forming large-scale antenna arrays. One method includes aligning two or more array packages. The two or more array packages each include one or more bottom dielectric layers, an array of antennas arranged in a plane above the one or more bottom dielectric layers, a ground plane layer above the one or more bottom dielectric layers, and a conductive surface on at least a part of an outside surface of the array package and orthogonal to the plane of the array of antennas. The conductive surface is electrically connected to the ground plane layer.

Abstract: An antenna and multi-antenna system are provided. Each antenna of the system is a mirror image and comprises first and second conductive elements each having a first end and a second end portion, the second end portions being capacitively coupled to each other. Each antenna can be operated as a lower-frequency folded dipole having a series capacitive gap which facilitates electrical lengthening of the antenna, or as a higher-frequency monopole antenna having a parasitic element which facilitates improved bandwidth. The antennas' feedpoints may be placed at opposite corners of a ground plane, and separated by a distance which is less than one quarter of an operating wavelength of the dipole but greater than one quarter of an operating wavelength of the monopole. Locating the feedpoints at the ground plane corners facilitates orthogonal polarization of the two antennas at least in dipole mode. The antennas thus provided exhibit good isolation.

Abstract: An apparatus comprising: a ground plane configured to receive an antenna, operable in a first resonant frequency band, at a first end of the ground plane; and a member configured to electromagnetically couple with the antenna, provide the ground plane with an electrical dimension, in combination with the antenna, having a resonant mode at the first resonant frequency band, and to reduce current distribution at a second end of the ground plane, different to the first end.

Abstract: A circularly polarized ceramic patch antenna having an extended ground for a vehicle is provided. The extended ground is formed under a patch antenna, has a predetermined thickness, is formed of a metal conductor having the same shape as the patch antenna, and is electrically connected to a ground plane formed on a board. The thickness of the extended ground is adjusted, so that it is possible to adjust radiation efficiency of the ceramic patch antenna that operates at a specific frequency band. Thus, the ceramic patch antenna has the effect of improving directionality of a radiation pattern formed in a direction parallel to the ground plane, and the effect of reducing a null point caused by a field effect to increase an antenna gain thereof.

Abstract: A wireless communication module is arranged such that a radio frequency circuit board stands vertically on a first earth plate. The radio frequency circuit board includes first and second radio frequency transmission and reception circuits at both end portions, respectively. The radio frequency circuit board includes a second earth plate serving as a grounding electric potential of the radio frequency transmission and reception circuits. Feed lines from the radio frequency transmission and reception circuits are connected to the first earth plate, respectively. Ground lines of the feed from the radio frequency transmission and reception circuits, respectively, are connected to the second earth plate. Thus, vertical exciting currents flow at both end portions of the second earth plane, enabling transmission and reception of vertical polarization waves.

Abstract: An antenna features a ground plane having a continuous portion and one or more stubs extending therefrom.

Abstract: An antenna system is provided. The antenna system includes a ground plane, an antenna, a feed cable, a cable connector, and an antenna connector. The ground plane has a first ground side and a second ground side. The antenna operates on the first ground side of the ground plane. The feed cable has a center conductor that is configured to transmit signals to and receive signals from the antenna. The cable connector couples the feed cable with the second ground side of the ground plane. The center conductor of the feed cable is electrically isolated from the ground plane and electrically coupled with the antenna connector. The antenna connector electrically couples the center conductor with the antenna. The antenna connector is connected to the center conductor and the feed cable is substantially parallel to the ground plane from the antenna connector to the cable connector.

Abstract: A mobile wireless communications device may include a portable housing, a dielectric substrate carried by the portable housing having a front side facing toward a user and a back side opposite the front side, and a ground plane carried by the dielectric substrate. The device may further include at least one circuit carried by the dielectric substrate, and an antenna carried by the dielectric substrate adjacent an end thereof and electrically connected to the at least one circuit. A ground patch may be adjacent the front side of the dielectric substrate that is electrically connected to the ground plane and spaced apart from and at least partially overlapping the antenna.

Abstract: A communication apparatus includes: a wiring group to couple wiring on a first board to wiring on a second board; antenna wiring including one end coupled to a feeding unit on the first board and the other end coupled to one end of a capacitor, the other end of the capacitor being coupled to a ground conductor of the second board; and ground conductor wiring for an antenna, disposed between the antenna wiring and the wiring group, including one end coupled to a ground conductor of the first board and the other end coupled to the ground conductor of the second board.

Abstract: A disclosed antenna device includes a ground section; and an element section projecting from the ground section. The length of the ground section in a direction orthogonal to a side of the ground section from which side the element section projects is less than approximately ¼ a corresponding wavelength. The ground section is configured to be disposed over and attached to a conductive section.

Abstract: Disclosed herein is a wireless communication module, wherein a module substrate provided with components of a communication circuit part for the wireless communication module and having a ground pattern and a power feeding pattern is provided thereon with a shield can type antenna, the shield can type antenna comprises a ground area, a plurality of curved parts formed by downwardly curving both up/down and left/right side surfaces of the ground area, and an antenna part provided at the outer side of the curved part formed at both left/right side surfaces of the ground area.

Abstract: A tire-state detection device including a sensor, an antenna having a predetermined frequency, a detection circuit, a case, and a planar conductor. The sensor detects a predetermined physical state of a tire. The detection circuit transmits information regarding a result of a detection made by the sensor from the antenna as radio waves. The case houses the sensor, the antenna and the detection circuit, and allows radio waves to pass. The case fits on a rim in the tire when the tire-state detection device is to be used. The planar conductor is electrically insulated from the antenna at a position set a predetermined distance away from the antenna so as to form an interface between the antenna and the rim when the case is fitted to the rim, and the planar conductor is set to a potential that is equivalent to a reference potential of the detection circuit.

Abstract: A disclosed antenna device includes a ground part, a first stub connected to the ground part, a first inverted-F antenna element including a first power feeder, a second stub connected to the ground part, and a second inverted-F antenna element including a second power feeder, wherein the ground part has a linear part between a first connecting part between the first stub part and the ground part and a second connecting part between the second stub part and the ground part.

Abstract: An antenna assembly for a wireless communication device includes a substrate of dielectric material that has opposing first and second surfaces. A ground plane formed by a layer of electrically conductive material on the first surface. An antenna with a physical length is disposed on the substrate. At least one metal-dielectric structure is disposed on the substrate. The metal-dielectric structures resonate so as to interact with the antenna and thereby alter the effective electrical length of the antenna. That interaction causes the antenna to function as though it had a greater physical length. In one embodiment, that interaction enables an antenna, that is shorter than one-fourth the wavelength of a radio frequency signal applied thereto, to function as through the physical length of the antenna was one-fourth that wavelength.

Abstract: The present invention overcomes the above-described and other problems by providing an improved edge-fed microstrip patch antenna, a dielectric substrate with integrated ground plane and enclosure that with a printable surface. An RFID microstrip patch antenna (21) system produces an antenna that is significantly less expensive to manufacture and install than existing commercial solutions. In doing so, the present invention enables the use of commodity, low cost products such as corrugated paperboard foils and extruded polystyrene and assembly methods such as graphics printing.

Abstract: The present invention provides a high-performance helical antenna element and array thereof for use in an aircraft communication system or the like, where stringent spatial restrictions and gain requirements generally apply. The performance of the array is enhanced by connecting conductive plates to the windings of the antenna elements at the terminal ends thereof such that the conductive plates are offset from the axes of the antenna elements and toward the center of the array.

Abstract: A wideband antenna for use portable radio devices, and methods for operating the same. In one embodiment, a monopole antenna is used within a laptop computing device. The antenna comprises a monopole radiator coupled to an auxiliary ground plane element, and is placed substantially outside of the footprint of the computer display ground plane. In one implementation, the auxiliary ground element is configured not to have electrical connections to the ground plane of the laptop. In another implementation, a solid state switch selectively connects an antenna parasitic element to the main ground thus enabling selective control of the antenna lower frequency operating band.

Abstract: A reconfigurable mobile phone built-in antenna and its implementation method are disclosed. The antenna comprises an antenna main structure, an additional ground area, a ground area printed on one surface of a printed board, an electronic switch and an antenna feeding point and a grounding point printed on the other surface of the printed board, the antenna main structure comprises a wiring structure of the antenna, a feeding spring piece in contact with the antenna feeding point and a grounding spring piece in contact with the grounding point, and the additional ground area is positioned under the wiring structure; the electronic switch is used for disconnecting the additional ground area with the ground area on one surface of the printed board when the antenna works at low-frequency frequency band and connecting the additional ground area with the ground area on when the antenna works at high-frequency frequency band.

Abstract: The invention refer to an antennaless wireless handset or portable device that may include a user interface module, a processing module, a memory module, a communication module, and a power management module. The communication module may include a radiating system capable of transmitting and receiving electromagnetic wave signals in a first frequency region. The radiating system may include a radiating structure comprising or consisting of at least one ground plane layer including a connection point, at least one radiation booster including a connection point, and an internal port wherein the internal port is defined between the connection point of the at least one radiation booster and the connection point of the at least one ground layer.

Abstract: An antenna device includes an insulating substrate, a ground plane, a radiating element, a horizontal feed probe and a vertical feed probe. The insulating substrate has a first surface and a second surface opposite to the first surface. One end of the first surface defines an insulating area. One end of the second surface adjacent to the insulating area defines a first isolating area, a second isolating area, a horizontal feed circuit and a vertical feed circuit. The ground plane includes a first ground plane and a second ground plane. The radiating element is located onto the insulating area. The horizontal and vertical feed probes are inserted in the insulating substrate and the radiating element with one end thereof projecting beyond the radiating element and the other end thereof respectively penetrating through the first and second isolating areas so as to couple with the horizontal and vertical feed circuits, respectively.

Abstract: An antenna assembly is disclosed which includes a layered structure having a planar array of antenna elements; and a feed arrangement perpendicular to the antenna elements; the layered structure further having layers over the planar array of antenna elements with holes provided therethrough to allow the feed arrangement to be connected to contacts for the antenna elements. The layered structure may include vias provided such that heat may be applied remotely to the contacts.

Abstract: 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.

Abstract: An antenna device includes an insulating substrate, a ground plane, a radiating element, a horizontal polarized portion and a vertical polarized portion. The insulating substrate has a first surface and a second surface opposite to the first surface, one end of the first surface defines a first isolating area and a second isolating area, one end of the second surface adjacent to the first and second isolating areas defines an insulating area, a horizontal feed circuit and a vertical feed circuit are disposed at the insulating area. The ground plane includes a first ground plane and a second ground plane. The radiating element is positioned opposite to and spaced from the first ground plane. The horizontal and vertical polarized portions are positioned on the radiating element and corresponding to the first and second isolating areas respectively so as to couple with the horizontal and vertical feed circuits, respectively.

Abstract: An antenna apparatus includes an electrically conductive section having peripheral edges, an antenna element coupled to the electrically conductive section, which transmits or receives electromagnetic signals, and an electromagnetic absorbing carbon material component. The carbon material component is generally disposed adjacent to the electrically conductive section, and includes a border region extending beyond the peripheral edges of the electrically conductive section. The carbon material component can be constructed of a carbon fiber fabric in which the carbon fibers are arranged to increase the effective signal to noise ratio of the antenna apparatus and enhance antenna performance without increasing the baseline power consumption level. The carbon fibers can be coated with silicone to insulate them externally while enhancing their lengthwise conductivity.

Abstract: An unbalanced antenna includes a non-conductive substrate having one short edge, and two long edges connected respectively to two opposite ends of the short edge and parallel to each other, and an unbalanced antenna disposed proximate to the short edge of the non-conductive substrate and having a ground portion. A ground plane has side edges extending along the long edges of the non-conductive substrate, and is electrically coupled with the ground portion. The length of the ground plane is longer than a quarter of an equivalent wavelength corresponding to an operating frequency of the unbalanced antenna. A pair of choke sleeve structures are symmetrically disposed at opposite sides of the ground plane and spaced apart from the unbalanced antenna by a quarter of an equivalent wavelength corresponding to the operating frequency. Each choke sleeve structure has one end connected to the ground plane, and the other end extending in a direction away from the unbalanced antenna.

Abstract: A method (1400) and an RF circuit (100, 400, 700, 1000, 1100, 1200, 1300) for a wireless communication device that mitigates near field radiation generated by the wireless communication device. At least one counterpoise (104, 404, 1304) can be configured to resonate at or near at least one operating frequency of an antenna (102) of the wireless communication device. The antenna can be a component of the RF circuit. The counterpoise can be electromagnetically coupled to the antenna to mitigate near field radiation of the antenna at the at least one operating frequency of the antenna in order to comply with an applicable hearing aid compatibility (HAC) specification.

Abstract: A compact size antenna operating in LTE frequency bands includes a radiation element, a ground plane, a connecting piece, and a ground extension element. The radiation element at least includes a first radiation branch extending toward a first direction, wherein a connection end of the radiation element has a signal feeding point. The connecting piece is coupled to the ground plane. The ground extension element includes: a metal arm, coupled to the ground plane through the connecting piece; a first ground branch, coupled to the metal arm, and extending toward the first direction; a second ground branch coupled to the metal arm, and extending toward a second direction opposite to the first direction; and a third ground branch, coupled to the metal arm, coupled to the second ground branch, and extending toward the first direction.

Abstract: A mobile communication device having an antenna structure includes a grounding element and an antenna element. The grounding element includes a main ground and a protruded ground being connected to an edge of the main ground. Antenna element includes a feeding portion and a radiating portion. The feeding portion includes a feeding point, a first strip and a second strip. The first strip and the second strip are both connected to the feeding point. The radiating portion includes a first open end, a second open end and a shorting point which is connected to the protruded ground by a short-circuiting strip. There is a first coupling gap between the first strip and a first section of the radiating portion having the first open end. There is a second coupling gap between the second strip and a second section of the radiating portion having the second open end.

Abstract: An antenna for receiving and transmitting radio signals includes a ground metal plate, a first patch plate, a second patch plate, a first feed-in wire electrically connected to the first patch plate for transmitting radio signals, a second feed-in wire electrically connected to the second patch plate for transmitting radio signals, and an insulation fixing unit for fixing the ground metal plate, the first patch plate and the second patch plate, to ensure that the ground metal plate, the first patch plate and the second patch plate do not electrically contact to each other.

Abstract: According to one embodiment, a coupler apparatus includes a coupling element, a ground plane, a first short element, and a second short element which short-circuits the second end of the coupling element and the ground plane. The coupling element includes a first conductive portion having first and second ends, and a second conductive portion which extends from a position between the first end and the second end and has an open end. The ground plane faces the coupling element and formed of a conductive material. The first short element short-circuits the first end of the coupling element and the ground plane The second short element short-circuits the second end of the coupling element and the ground plane.

Abstract: The present invention enables to restrain the enlargement of the wireless communication apparatus and prevent the manufacturing processes from increasing and to increase the frequency bands which can be used by the wireless communication. An antenna 1 includes a first ground pattern 3, a second ground pattern 4, a hinge conductor member 5 and a current control circuit 6. The first ground pattern 3 is formed on a first printed wiring board 7. The hinge conductor member 5 is arranged on a hinge Z which connects indirectly the first printed wiring board 7 and a second printed wiring board 8 each other. The current control circuit 6 is arranged on the first printed wiring board 7. The current control circuit 6 has a function to flow the electric current of a first frequency band and attenuate the electric current of a second frequency band.

Abstract: A multi-band antenna mounted on a circuit board includes a ground plate perpendicularly connected to one side edge of the circuit board, a radiating plate perpendicularly connected to the other side edge of the circuit board, and a planar antenna element includes a high frequency radiating portion, a lower frequency radiating portion, a base plate, a capacitance portion and an inductance portion. The high frequency radiating portion and the lower frequency radiating portion are located at two ends of the circuit board, respectively, and both connected to the radiating plate. The base plate is connected to the radiating plate and located between the high and lower frequency radiating portions. The capacitance portion is parallel with the ground plate to form a capacitive coupling therebetween. The inductance portion is soldered to the ground plate. A simulation inductance is formed by the inductance portion.

Abstract: An antenna with an improved holed system ground plane comprises a substrate, a radiation conductor member, a grounding member and a system ground plane. The radiation conductor member is arranged on the surface of the substrate. The grounding member is arranged on one edge of the substrate. The radiation conductor member is connected with the grounding member. The system ground plane is connected with one side of the grounding member. The system ground plane has at least one arbitrary-shaped hole. A radiation-enhancing filler is disposed in the arbitrary-shaped hole. The present invention solves the conventional problems that the system ground plane is drilled or cut to accommodate components and IC chips, keep away from wiring routes and avoid protrusions on the appearance, via disposing radiation-enhancing fillers in the arbitrary-shaped holes. Thereby is kept integrality of the system ground plane and promoted omnidirectionality of signal transmission.

Abstract: The present invention discloses a shorted monopole antenna comprising a radiating portion comprises a first metal portion and a second metal portion and is located on the dielectric substrate, without overlapping with the ground plane. The first metal portion comprises a coupling section formed by bending the front portion of the first metal portion into two adjacent sections with a coupling gap. A first end of the feeding portion is electrically connected to the first metal portion. A second end of the feeding portion is the antenna's feeding point. The shorting portion is disposed on the dielectric substrate, without overlapping with the ground plane. A first end of the capacitive element is electrically connected to the antenna's feeding point. A second end of the capacitive element is electrically connected to a source.

Abstract: Multipath reception by an antenna is reduced by mounting the antenna on a semi-transparent ground plane that has a controlled distribution of layer impedance over a central region and a peripheral region. The central region includes a continuous conductive segment on which the ground element of the antenna is disposed. The distribution of the layer impedance over the peripheral region is configured by multiple conductive segments electromagnetically coupled by lumped circuit elements. A semi-transparent ground plane can be fabricated by depositing a metal film on a dielectric substrate and etching grooves into the metal film to form a desired pattern of conductive segments. Lumped circuit elements can be fabricated as discrete devices, surface mount devices, and integrated circuit devices. Various semi-transparent ground planes can be configured for linearly-polarized and circularly-polarized radiation.

Abstract: A tire-state detection device including a sensor, an antenna having a predetermined frequency, a detection circuit, a case, and a planar conductor. The sensor detects a predetermined physical state of a tire. The detection circuit transmits information regarding a result of a detection made by the sensor from the antenna as radio waves. The case houses the sensor, the antenna and the detection circuit, and allows radio waves to pass. The case fits on a rim in the tire when the tire-state detection device is to be used. The planar conductor is electrically insulated from the antenna at a position set a predetermined distance away from the antenna so as to form an interface between the antenna and the rim when the case is fitted to the rim, and the planar conductor is set to a potential that is equivalent to a reference potential of the detection circuit.

Abstract: A multi-band antenna apparatus using a multiple frequency band is provided. The apparatus includes a substrate body formed in a flat plate structure having a preset thickness and in which at least one dielectric plate is stacked, a power supply line, disposed at the substrate body and connected to an external power source, for forming an electromagnetic field when power is supplied from the external power source, a radiation line, separated from the power supply line using the dielectric plate as the boundary in the substrate body, for forming an overlapping area overlapped with the power supply line along one axis through at least a portion, and for resonating in a frequency band determined according to the overlapping area when the electromagnetic field is formed, and a ground plate disposed in at least one an upper ground area and a lower ground area of the substrate body, for grounding the radiation line by contacting with the radiation line.

Abstract: A surface mount device antenna module includes an antenna unit, a connecting unit and a circuit board. The connecting unit is used to connect the antenna unit and the circuit board. The antenna unit has a signal feeder electrically connected with the circuit board which is under the antenna unit. The antenna module is able to be attached onto the main board of an electronic device by surface mount technology. The area of the main board covered by the antenna module can be decreased. And the dimensions of the main board and the electronic device can be consequently decreased.

Abstract: An antenna design technique which allows antennas to be self-matched while supporting multi-band and broadband operations. The technique includes adding a raised and curved ground plane section electrically coupled to the ground plane. The curved ground plane section allows for a smooth transition of the surface current hence a boarder bandwidth is achieved. A slit positioned between the ground plane and the ground plane section can also be used to further improve the antenna bandwidth. The technique does not increase the antenna thickness neither its volume, thus allowing application in slim handheld device applications such as flip phones. Using this technique, a narrow band antenna is made broadband to cover several frequency bands of interest. The technique is applied to a quad-band antenna to broaden its bandwidth to become a sept-band antenna. The technique is used to also improve the antenna match at all the seven bands it supports.

Abstract: A dual-band antenna includes a first antenna element having a generally “J” shaped element, and a second antenna element having a generally “h” shaped element. The first antenna element and the second antenna element share a common feed point and each antenna element is oriented substantially perpendicular to the other. The first antenna element and the second antenna element, in one implementation, are adapted to efficiently operate the dual-band antenna at approximately 1575 MHz and approximately 850 MHz, respectively.

Abstract: An antenna used in wireless communication, provided with an antenna element and a GND portion on a dielectric board and mounted in an electronic device, includes a open conductor having a high-frequency connection to the GND portion at an end of the dielectric board in the opposing corner direction from a power supply point of the antenna element. The length of the GND portion in the vertical direction relative to the propagation direction of a high-frequency signal is less than ¼ the wavelength of the operating frequency of the antenna element.

Abstract: A conical radiator coupled to an antenna patch disposed along a first end of the radiator, said patch disposed on an insulator. A ground plane is connected to the insulator and a radome is disposed opposite a second end of the radiator. The radome has a first region presenting a convex surface towards the radiator, and the radome has a second region presenting a concave surface towards the radiator. The first end of the conical radiator is the apex of the cone. A ground plane is included and a portion of the ground plane is a planar surface and another portion extends away from the planar portion towards the radome. Also disclosed is a method for forming a radiation pattern by shaping the radome to effectuate a predetermined radiation pattern using localized convex and concave surfaces positioned on the radome at different points in relation to the conical radiator.

Abstract: An antenna assembly for a mobile wireless communication device has a support with a first surface and a second surface between which a third surface and a fourth surface extend. A conductive ground plane is formed on the second surface. An antenna includes an electrically conductive patch located on the first surface, and first and second electrically conductive legs and an electrically conductive stripe all abutting the patch. In one version the first and second legs and the strip are all on the third surface. In another version the first and second legs are on the third surface and the strip is on the fourth surface that is orthogonal to the third surface. A first signal port is adapted to apply a first signal to the first leg and a second signal port is adapted to apply a second signal to the third leg.