Abstract: A method is presented for transmitting data in a satellite system having multiple spot beams comprising (1) sending a broadband signal in a forward direction from a gateway terminal to a communications satellite for relay to at least one subscriber terminal, (2) receiving the broadband signal at the communications satellite, wherein the communications satellite comprises a bent pipe repeater having a plurality of satellite-based transmission amplifiers, (3) using one of the plurality of satellite-based transmission amplifiers to amplify the broadband signal and no other broadband signal from the gateway terminal, to produce an amplified broadband signal, (4) sending the amplified broadband signal as one of a plurality of service spot beams to the at least one subscriber terminal, and (5) receiving and retrieving data from the amplified broadband signal at the at least one subscriber terminal.

Abstract: A portable electronic device and a magnetic field antenna circuit are provided for making it possible to keep an antenna resonance frequency in a fixed range even if temperature changes. A mobile telephone device (1) is provided with a second communication unit driven by a chargeable battery (43) to execute a predetermined function and an RFID unit (41) accompanied with magnetic communication. The RFID unit (41) includes a magnetic antenna unit (50), which can transmit or receive a wireless signal by a magnetic field, and a capacitor (52), one terminal of which is connected with the magnetic antenna unit (50) to generate a predetermined resonance frequency. The capacitor (52) is characterized in having a temperature-reactance characteristic reverse to an amount of an inductance value that fluctuates as the magnetic antenna unit (50) changes in accordance with temperatures.

Abstract: A wireless IC device includes a wireless IC chip; a feeder circuit board which has the wireless IC chip located thereon, is magnetically coupled to a radiation plate, supplies electric power to the wireless IC chip, and relays signals between the wireless IC chip and the radiation plate; and a substrate on which the feeder circuit board is placed. On the substrate, there are formed a plurality of positioning markers indicating the boundaries of a plurality of positioning areas in which the feeder circuit board is selectively placed.

Abstract: A backscatter passive wireless control system and method employs frequency coding using frequency components generated from an interrogating field using a passive nonlinear element such as a diode in a passive transponder tag. In particular, InterModulation Distortion (IMD) frequency components may be generated which are shifted in frequency from the interrogating signal to assist in backscatter detection at a receiver but are still in band, e.g., in an ISM band. The shifted frequency components may be swept or stepped over a range and passive elements in the tag encode a tag ID by selecting specific frequencies to be backscattered. A manually operated switch may couple an antenna to the transponder to allow battery free control.

Abstract: A communication device having a wireless communication system and a Near Field Communication (NFC) circuit is provided. The NFC circuit includes two pads, two ferrite beads and a NFC controller. The first pad and the second pad are coupled to a NFC antenna. The first and the second ferrite bead are respectively coupled to the first pad and the second pad. The NFC controller includes two pins. The first pin and the second pin are coupled to the first ferrite bead and the second ferrite bead, respectively. The first pin and the second pin output a differential NFC signal to be emitted by the NFC antenna. The first and the second ferrite bead allow the fundamental frequency component of the NFC signal to pass, and filter out a plurality of high-frequency components for avoiding the operating frequency of the wireless communication system from being interfered by the high-frequency components.

Abstract: An apparatus has a data input device arrangement and an electrical circuit. The data input device arrangement includes at least one user input key and at least two keylines configured to provide a data input to the apparatus. The electrical circuit has at least a first electrically conductive component configured to decouple the data input device arrangement at a predetermined radio frequency band to provide an antenna. In an embodiment the predetermined frequency is an operational frequency of the provided antenna. In various embodiments when the data input device is decoupled one of the keylines provides an antenna radiator component, and in another it provides an antenna parasitic short to ground. In various embodiments the first electrically conductive component exhibits a high impedance at the predetermined radio frequency band, and in another it is a notch filter which passes the predetermined radio frequency band.

Abstract: A dual-polarized dual-feeding planar antenna includes a first substrate, a second substrate and an air layer. The first substrate includes at least one first microstrip and at least one patch electrically connected with each other. The second substrate is disposed on one side of the first substrate and includes a common ground layer, a slot, a first feeding port, a second feeding port and a second microstrip. The slot is disposed corresponding to the patch. The air layer is disposed between the first substrate and the second substrate. The first microstrip is electrically connected to the first feeding port through a conducting wire. The patch couples to the second microstrip via the slot, and the second microstrip is electrically connected to the second feeding port.

Abstract: An antenna arrangement including a partitioned ground plane including at least a first part and a second part that are interconnected by a component having a predetermined impedance; and an inductive coupling element positioned adjacent the component.

Abstract: A semiconductor device, includes a chip, a first external terminal, a second external terminal, and a partial antenna wiring that is coupled to the first external terminal, and that constitutes a matching circuit, wherein the chip includes first and second electrode pads that are coupled to the partial antenna wiring, a third electrode pad that is different from each of the first and second electrode pads, and that is coupled to the second external terminal, and an electrostatic discharge (ESD) protection circuit that is coupled to the third electrode pad.

Abstract: It is characterized in that it includes; a single antenna element corresponding to a first frequency band and a second frequency band that is different from the first frequency band; a power feeding point for supplying AC power to the antenna element; and a parallel resonance circuit electrically connected between the antenna element and the power feeding point, and the parallel resonance circuit has impedance that is set so as to indicate induction properties in the first second frequency band and set so as to indicate capacitance properties in the second frequency band, and return loss in the first and second frequency bands is sufficiently small so as to enable wireless communication.

Abstract: An antenna apparatus that may be adapted to various environments. The antenna apparatus includes a radiation unit to transmit and receive in a 360° radius including a plurality of radiators, each radiator configured to radiate a main emission pattern in different direction; and a switch unit configured to selectively operate each of the plurality of radiators.

Abstract: A dielectrically loaded quadrifilar helical antenna has four quarter turn helical elements centered on a common axis. Each helical element is metallised on the outer cylindrical surface of a solid dielectric core and each has a feed end and a linked end, the linked ends being connected together by a linking conductor encircling the core. At an operating frequency of the antenna the helical elements and the linking conductor together form two conductive loops each having an electrical length in the region of (2n?1)/2 times the wavelength, where n is an integer. Such an antenna tends to present a source impedance of at least 500 ohms to receiver circuitry to which it is connected. The invention includes an antenna assembly including a dielectrically antenna and a receiver having a radio frequency front-end stage with a differential input coupled to the feed ends of the helical elements.

Abstract: Systems and methods are provided for an antenna coupler mechanism. The antenna coupler mechanism includes a first tuning leg configured to accept a radio frequency device. The first tuning leg includes a first inductive circuit element that is connected in series with the radio frequency device. The antenna coupler mechanism further includes a second tuning leg, which includes a second inductive circuit element and a capacitive circuit element connected in series. A bottom plate is connected in parallel with the first tuning leg and in parallel with the second tuning leg. The bottom plate comprises a third inductive circuit element and is configured to couple energy into a nearby structure.

Abstract: A wireless device, including an antenna different from another antenna included in one of two casings, in a joint part where the two casings are joined together, is capable of reducing deterioration in properties of the antenna included in the joint part.

Abstract: An antenna device includes: a shielded cable having a first connection portion on one end side and a second connection portion on the other end side; and an antenna element which is connected to the second connection portion of the shielded cable, wherein the shielded cable includes an inner conductor, a first insulator, a first outer conductor, a second insulator, and a second outer conductor, which are coaxially disposed in this order from an inner side, and is covered at its outer circumference by an insulation sheath, the first connection portion of the shielded cable is formed such that the inner conductor is supplied with power and the first outer conductor is connected to a ground, and in the second connection portion of the shielded cable, the first outer conductor is connected to the antenna element, and the inner conductor is connected to the second outer conductor.

Abstract: A transmission line structure for propagating electromagnetic energy includes a transmission line conductor trace, a first dielectric foam layer and a second dielectric foam layer. The conductor trace is sandwiched between the first foam layer and the second foam layer. A first ground plane layer and a second ground plane layer sandwich the first foam layer, the conductor pattern and the second foam layer.

Abstract: Systems and methods are provided for an antenna coupler mechanism. The antenna coupler mechanism includes a bottom plate that includes a first conductor that is configured to couple energy into a nearby structure. A first tuning leg is connected in parallel with the bottom plate by a first set of electrical connections. The first tuning leg includes a second conductor and is configured to accept a radio frequency device in series with the second conductor. A second tuning leg is connected in parallel with the bottom plate by a second set of electrical connections. The second tuning leg includes a third conductor and a capacitor connected in series.

Abstract: Systems and methods are provided for an antenna coupler mechanism. The antenna coupler mechanism includes a first tuning leg configured to accept a radio frequency device. The first tuning leg includes a first inductive circuit element that is connected in series with the radio frequency device. The antenna coupler mechanism further includes a second tuning leg, which includes a second inductive circuit element and a capacitive circuit element connected in series. A bottom plate is connected in parallel with the first tuning leg and in parallel with the second tuning leg. The bottom plate comprises a third inductive circuit element and is configured to couple energy into a nearby structure.

Abstract: An antenna assembly including: an insulating substrate; a conductive coating covering a surface of the substrate at least section-wise and serving at least section-wise as a planar antenna receiving electromagnetic waves; a first coupling electrode electrically coupled to the conductive coating extracting useful signals from the planar antenna; a source of interference disposed such that interfering signals can be received by the planar antenna; an electrically conductive ground; and a second coupling electrode electrically coupled to the conductive coating coupling out interfering signals received by the planar antenna from the planar antenna. The second coupling electrode includes a first coupling surface and the conductive structure includes a second coupling surface capacitively coupled to the first coupling surface, the two coupling surfaces configured to selectively allow passage of a frequency range corresponding to the interfering signals to be extracted from the planar antenna.

Abstract: An improved variable matching network for use in a multi-band, multi-mode communications device provides dynamic, fine-tune impedance matching based on current operational conditions associated with a given signal. In one embodiment, gross parameters are selected based on one or more of the operational conditions. Delta parameters are provided using an optimization algorithm based on one or more of the operational conditions. And the gross and delta parameters are combined to obtain overall matching parameters that dynamically fine-tune discrete matching circuitry.

Abstract: A feeding device for a smart antenna includes a signal reception terminal, a first antenna feeding terminal, a second antenna feeding terminal, a power divider, and a switching circuit. The signal reception terminal is utilized for receiving a transmitting signal. The first antenna feeding terminal and the second antenna feeding terminal are utilized for outputting feeding signals to the two antennas, respectively. The power divider, having a first input port, a second input port, a first output port, and a second output port, is utilized for distributing energy received by the first input port or the second input port equally to the first output port and the second output port, and making signals of the first output port and the second output port having 90 degree phase difference. The switching circuit performs switching operations to control electrical connections of the power divider according to a control signal.

Abstract: A dual frequency antenna comprises: a helix coil, of which the lower end is provided with a first resonant coil with a first pitch and of which the upper end is provided with a second resonant coil with a second pitch, for resonating at a frequency lower than the resonant frequency of the first resonant coil, wherein, the first pitch is larger than the second one; a first coupling unit, which is installed in the first resonant coil and is electrically isolated from the first resonant coil, for stabilizing resonant frequency performance of the first resonant coil; and a second coupling unit, which is installed outside the helix coil and is electrically isolated from the helix coil, for increasing equivalent electrical length of the first resonant coil and raising resonant frequency gain of the first coil.

Abstract: A dual-band dielectrically loaded helical antenna for circularly polarised signals has two groups of helical antenna elements. In each group there are at least four such elements and they are connected at their distal ends to a respective feed coupling node and at their proximal ends to a common linking conductor. Each group includes pairs of neighbouring such antenna elements, each pair having one electrically short element and one electrically long element, and the arrangement of the elements is such that in each group the number of pairs in which, in a given direction around the core, the short element precedes the long element is equal to the number of pairs in which, in the same direction, the long element precedes the short element.

Abstract: Output terminals (o1, o2) of a differentially excited transmitting circuit (TC) are connected through matching capacitors (MC1, MC2) to connecting terminals of the oscillatory circuit antenna (OCA) on the other side said connection terminals are directly connected to input terminals of a receiving circuit (RC). Each of the input terminals (i1, i2) of the receiving circuit (RC) is connected to an earthing terminal (m) of the integrated transceiver circuit (TRC) through a corresponding undervoltage-protection diode (UPD1, UPD2) determining a lower potential value of a received signal and a corresponding overvoltage-protection diode (OPD1, OPD2) determining an allowed upper potential value of the received signal exceeding said lower potential value by the highest possible voltage still allowable by the integrated transceiver circuit (TRC).

Abstract: A planar dipole antenna is described. The antenna may include a ground element, a feed point, a matching element, and first and second radiating elements disposed on a substrate, and a feed point. The ground element may have a substantially rectangular shape and the feed point may be arranged adjacent to the ground element. The matching element may be connected to the feed point and may include a central bar connected to a first and second arm. The first and second arms may be substantially symmetrically disposed on the substrate in respect to the central bar. The first and second radiating elements may have substantially trapezoidal shapes and may be extend from the first and second arms of the matching element, respectively. The first and second radiating elements may be substantially symmetrically disposed on the substrate in respect to the central bar of the matching element.

Abstract: A distributed continuous antenna for wireless communication includes a first section of coaxial cable having a center conductor and an outer shield; and an antenna lead having a first end electrically connected at an injection point of the outer shield of the coaxial cable, and having a second end configured to be coupled to a device radio for the purpose of transmitting or receiving signals using the outer shield of the coaxial cable as an antenna for the device radio. The distributed continuous antenna might include a plurality of leads electrically connected to the outer shield of the coaxial cable at a first end and configured to have a second end coupled to a device radio for the purpose of transmitting or receiving signals using the outer shield of the coaxial cable as an antenna for the device radio.

Abstract: An apparatus including a first antenna element operable at least one frequency within a first frequency range; a second antenna element operable at at least one frequency within a second frequency range; radio frequency circuitry electrically connected to the first antenna element via a first electrical path and electrically connected to the second antenna element via a second electrical path, wherein the first and second electrical paths are common where they connect to the radio frequency circuitry; a first frequency-dependent filter arrangement, within the first electrical path, arranged to accept frequencies within the first frequency range and reject frequencies within the second frequency range; a first impedance level transformation arrangement, having a first tapped inductor, within the first electrical path; and a second frequency-dependent filter arrangement, within the second electrical path, arranged to accept frequencies within the second frequency range and reject frequencies within the first fr

Abstract: An antenna feeding network, including at least one antenna feeding line, each antenna feeding line comprising a coaxial line having a central inner conductor and a surrounding outer conductor. The outer conductor (4) is made of an elongated tubular compartment (5) having an elongated opening (6) along one side of the compartment (5), and that the inner conductor (3) is suspended within the tubular compartment (5) by means of dielectric support means (7).

Abstract: A wireless device having two appropriately placed antennas can reduce deterioration in properties of an antenna included in a casing. The wireless device includes upper and lower casings, a hinge part, and at least one transmission element. The upper casing houses a casing antenna resonating with a first frequency. The lower casing houses a matching circuit of the casing antenna and houses a radio unit circuit for processing a signal having a second frequency. The hinge part joins the upper casing with the lower casing, includes a built-in antenna resonating with the second frequency, and includes feeding sections for electrically coupling the matching circuit to the casing antenna. The transmission element is disposed on a signal path connecting the built-in antenna and the radio unit circuit, and (i) gives passage to the signal having the second frequency and (ii) blocks a signal having the first frequency.

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: A broadband antenna includes a first antenna element having first and second ends spaced apart by a surface thereof. A second antenna element is substantially co-planar with the first antenna element, the second antenna element having first and second ends spaced apart by a surface thereof. The first end of the second antenna element is spaced apart from the second end of the first antenna element by a first air gap. A conductive structure is spaced apart from the first end of the first antenna element by a second air gap, the conductive structure being configured to provide for structural excitation of the antenna over a lower frequency range of an available broadband antenna bandwidth, such as may be a continuous operating bandwidth.

Abstract: A communication device includes a communication circuit unit processing a high-frequency signal, a transmission path connected to the communication circuit, a ground, a coupling electrode supported so as to face the ground and to be separated by a height negligible with respect to a wavelength of the high-frequency signal, a resonating unit increasing a current flowing into the coupling electrode via the transmission path, and an extended section formed of a conductor disposed near a front of the coupling electrode with an angle ? formed relative to a direction of a microdipole being approximately 0 degree, the microdipole being formed of a line segment connecting a center of charges stored in the coupling electrode and a center of mirror-image charges stored in the ground, the conductor extended in a lateral direction approximately orthogonal to a propagating direction of an electric-field signal occurring from the front of the coupling electrode.

Abstract: A mobile wireless communications device includes a portable housing, a transmitter carried by the portable housing and configured to modulate an input signal, and an adjustable impedance matching network coupled downstream from the transmitter. An antenna is coupled downstream from the adjustable impedance matching network, and a non-directional coupler is coupled between the adjustable impedance matching network and the antenna. A feedback receiver is coupled to the non-directional coupler to generate a feedback signal. A controller is configured to control the adjustable impedance matching network based upon the input signal and the feedback signal.

Abstract: Disclosed herein is an antenna feed design for transmitting or receiving a circularly polarized microwave signal, and a communication device using that antenna feed design. Resonating disks are bowl-shaped to balance E-plane and H-plane magnetic field patterns, decreasing cross-polarization, and providing mechanical rigidity. A non-planar circuit replaces planar microstrip transmission lines for transmitting the signal, with 90° phase shifts, from an input point to excitation points. This non-planar circuit overcomes some of the layout problems encountered in planar circuits. It maintains impedance matching from the input point to the excitation points by progressively tapering down the characteristic transmission line impedance of each successive section. The non-planar circuit has sufficient mechanical strength and rigidity to allow it to be supported at only two anchor points. Similarly, the non-planar disks are also of sufficient strength to require only a single anchor point each.

Abstract: One embodiment relates to a coupler that can be used in a radar system. The coupler includes differential ports, an antenna port, a receiver port, a local port and a transmission path. The differential ports are configured to receive a differential signal. The antenna port is configured to output a transmitted signal and to input a received signal. The transmitted signal is derived from the differential signal. The receiver port is configured to output a portion or version of the received signal. The local port outputs a local signal, which is also derived from the differential signal. The transmission path is coupled to the differential ports, the antenna port, the receiver port and the local port. The transmission path typically has a length selected to derive or output the signals at the above ports.

Abstract: An object of the present invention is to prevent electrical characteristics of circuit elements from being adversely affected by copper diffusion in a semiconductor device having an integrated circuit and an antenna formed over one substrate, which uses copper plating for the antenna. Another object is to prevent a defect of a semiconductor device due to poor connection between an antenna and an integrated circuit in a semiconductor device having the integrated circuit and the antenna formed over one substrate. In a semiconductor device having an integrated circuit 100 and an antenna 101 formed over one substrate 102, when a copper plating layer 108 is used for a conductor of the antenna 101, it is possible to decrease an adverse effect on electrical characteristics of circuit elements due to copper diffusion because a base layer 107 of the antenna 101 uses a nitride film of a predetermined metal.

Abstract: A ceramic antenna includes a ceramic body, a first conductor, a second conductor, four metal poles, and eight metal pads. The first conductor and the second conductor are positioned on a same plane and form a coupling capacitor. Two metal poles of the four metal poles extend through the ceramic body and the first conductor. The other two metal poles extend through the ceramic body and the second conductor. The eight metal pads are defined in two opposite surfaces of the ceramic body. Two ends of each metal pole contact two metal pads respectively. When the ceramic body is installed in the electronic device, one of the four poles is used as a feeder of the ceramic antenna, and the other three poles are used as grounds of the ceramic antenna.

Abstract: A Doherty amplifier (1) is described which comprises an input terminal (102) for receiving an input signal (101) and an output terminal (103) for providing an amplified signal (104) of the input signal (101). The Doherty amplifier (1) comprises a carrier amplifier stage (300) with a first signal input (311) and a second signal input (312) and a peak amplifier stage (400) with a third signal input (411) and a fourth signal input (421). A signal splitter (200) splits and delays the input signal (101) so that the signal at the first signal input (311) and the signal at the second signal input (321) are 180° apart in phase and that the signal at the third signal input (421) and the fourth signal input (431) are also 180° apart in phase.

Abstract: A directional coupler according to the present invention includes a primary line for transmitting a transmission signal; an input port for inputting the transmission signal to the primary line; an output port for outputting the transmission signal from the primary line; a secondary line for electromagnetically coupling with the primary line to extract part of the transmission signal; a coupling port provided at one end of the secondary line; an isolation port provided at the other end of the secondary line; and a low pass filter unit having a function of low pass filter, disposed between the secondary line and the coupling port.

Abstract: In this mobile device, at least either the selection antenna module or the selection circuit module is so formed as to be incapable of being mounted on the mobile device body when the selection antenna module and the selection circuit module are not matched to each other, and both the selection antenna module and the selection circuit module are so formed as to be capable of being mounted on the mobile device body when the selection antenna module and the selection circuit module are matched to each other.

Abstract: A UHF RFID antenna is integrated into the disposable metal cover of foam, plastic, metal or cardboard containers.

Abstract: A communication device is disclosed that includes an antenna apparatus including a feeding portion, a looped antenna element connected to the feeding portion, and a resistor inserted into the looped antenna element, and a communication circuit configured to process data that is transmitted and received via the antenna apparatus.

Abstract: A Hearing apparatuses and a hearing apparatus chip are provided. A hearing apparatus chip for processing a signal of a hearing apparatus includes a signal-processing component and a first ground wire connected to a first terminal of the component. The signal processing component includes a second ground wire galvanically separated from the first ground wire on the chip and is connected to a second terminal of the component by way of a capacitor, in order to conduct interference signals as a result of electromagnetic couplings. In particular, the sensitive ground of a preamplifier is not then interfered with by leakage currents.

Abstract: A miniaturized ultra-wideband multifunction antenna comprising a conducting ground plane at the base, a plurality of concentric feed cables, one or more omnidirectional one-dimensional (1-D) normal-mode and two-dimensional (2-D) surface-mode traveling-wave (TW) radiators, frequency-selective internal and external couplers, and a unidirectional radiator on top, stacked and cascaded one on top of the other. Configured as a single structure, its unidirectional radiator and plurality of omnidirectional TW radiators can cover, respectively, most satellite and terrestrial communications, with unidirectional and omnidirectional radiation patterns, respectively, needed on various platforms. This new class of multifunction antenna is ultra-wideband, miniaturized and low-cost, thus attractive for applications on automobiles and other small platforms.

Abstract: A controlled power supply comprising: a) an array of low voltage current sources; b) a plurality of switch power supplies coupled to each of the storage capacitors and respective ones of the pulse loads being coupled to each of the switch power supplies; c) each of the storage capacitors being configured for storing energy during an inactive portion of a load switching cycle of the respective switch power supply to which the corresponding storage capacitor is coupled when the pulse loads are inactive; d) a respective output capacitor in association with each of the switch power supplies for feeding voltage to the respective pulse loads during an active portion of the load switching cycle; and e) the respective storage capacitor being configured for supplying the stored energy via the respective to the respective switch power supply to which the storage capacitor is coupled to each of the pulse loads coupled to switch power supply during an active portion of the load switching cycle.

Abstract: An array antenna apparatus includes a first antenna element resonating at a first frequency and a second antenna element resonating at the first frequency, and includes a first connecting line that connects the first connection point located in the first antenna element with a third connection point located in the second antenna element, and a second connecting line that connects the second connection point located in the first antenna element with a fourth connection point located in the second antenna element. Electrical lengths of the first and second antenna elements and those of the first and second connecting lines are set so that a phase difference, between first and second high-frequency signals respectively propagating through first and second signal paths, becomes substantially 180 degrees at the first feeding point, and then, the array antenna apparatus resonances at the first frequency and the second frequency.

Abstract: A box mapper has (i) a frame configured to receive a sample box of RFID-tagged sample vials and (ii) a set of antennae configured to read the vial RFID tags of the sample vials to determine the identity and position of each sample vial in the sample box. In one embodiment, the set of antennae include two mutually orthogonal subsets of biphase digit antennae.

Abstract: An antenna structure intended for small-sized mobile terminals. In one embodiment, the antenna structure comprises a main radiator for implementing the lowest operating band and other radiators for implementing at least one operating band in the high band. The structure also comprises a matching circuit, by which a plural (e.g., double) resonance is implemented for the main radiator in the range of the lowest operating band and the isolation is improved between the main radiator and another radiator. A reactive element is joined to the main radiator so that its electric size decreases in the high band and increases in the low band. The former strengthens the resonances in the high band, and thus results in rise in the efficiency in the high band.

Abstract: Disclosed are apparatus and methodology subject matters relating to an antenna configured for mounting under the glass in a utility meter. The antenna is configured as a patch antenna where a radiating element is mounted on one side of a plastic substrate while a conductive ground plane element is mounted on the other side of the substrate. The ground plane element faces the meter electronics and thereby provides protection to the electronics from the electromagnetic field of the antenna. Both the radiating element and ground plane element may be provided by hot stamping conductive material directly on to the front and rear surfaces of the substrate. The antenna may be feed by a microstrip feedline mounted on the printed circuit board supporting other meter components.

Abstract: The present invention provides an apparatus for coupling a radio communication device to a host system. The apparatus comprises a housing including a counterpoise operatively coupled to the radio communication device. The apparatus also comprises a signal pathway operatively coupling the radio communication device to the host system. The apparatus thereby provides a counterpoise for the radio communication device which is external to both the host system and the radio communication device.