Abstract: According to one embodiment, an antenna array includes a plurality of first antenna elements having a first polarity and a plurality of second antenna elements having a second polarity. A feed circuit couples the plurality of first antenna elements and the plurality of second antenna elements to an antenna drive circuit. The feed circuit is configured on a plurality of columns extending in a direction that is oblique to the plurality of first antenna elements and the plurality of second antenna elements.

Abstract: Antenna arrays which can work simultaneously in various frequency bands thanks to the physical disposition of the elements which constitute them, and also the multiband behavior of some elements situated strategically in the array. The configuration of the array is described based on the juxtaposition or interleaving of various conventional mono-band arrays working in the different bands of interest. In those positions in which elements of different multiband arrays come together, a multiband antenna is employed which covers the different working frequency bands. The advantages with respect to the classic configuration of using one array for each frequency band are: saving in cost of the global radiating system and its installation (one array replaces several), and its size and visual and environmental impact are reduced in the case of base stations and repeater stations for communication systems.

Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.

Abstract: The present invention is an adjustable beamwidth, loaded monopole antenna array. The array may include four monopole antennas. Each of the antennas may include a generally symmetric, tapered radiating element and an inductive shorting wall element. The array may further include a capacitive top hat element which may be connected to each of the antennas. The array may further include a ground plane element which may be connected to each of the antennas. The array may further include a plurality of feed posts which may be connected to the antennas. Further, each feed post may be connected to a power feed line. Each radiating element may be variably phase-fed and/or uniformly phase-fed for allowing the antenna array to effect a directional beam and/or an omni-directional beam.

Abstract: A dual-band antenna assembly is positioned on a substrate, and includes an insulation body, a plane antenna and a microstrip antenna. The insulation body includes a plane surface paralleled to the substrate, and a side surface perpendicularly extending from edges of the plane surface to the substrate. The plane antenna includes a first feed portion and a first radiator. The first feed portion passes through the substrate to the plane surface of the insulation body. The first radiator is substantially positioned on a center of the plane surface of the insulation body, and electrically connected to the first feed portion. The microstrip antenna includes a second feed portion and a second radiator. The second radiator is a microstrip, electrically connected to the second feed portion and positioned on the side surface of the insulation body.

Abstract: Antennas that can transceive signals in an elliptically-polarized, omni-directional manner are described. In an example embodiment, an antenna comprises two elements proximally located to each other at a predetermined distance, such that two orthogonally-polarized omni-directional electromagnetic waves are tranceived. In a further example, the two elements are supported by an internal printed circuit, the printed circuit including conductors configured to supply a feed to the elements, which may be contained within a radome. Alternate embodiments comprise a plurality of elements of varying lengths.

Abstract: The present invention relates to a system of multi-beam antennas comprising M radiating sources and P networks of N radiating elements, P being greater than 1 and N being an even whole number, the network elements being connected two by two via transmission lines of the same electrical length. In addition, the P networks are co-located at the centre of each network, the M radiating sources are each positioned at a distance Li from said centre, the distance Li being strictly less than the distance of the field called the far field and i varying from 1 to M. This system can be used with MIMO type devices.

Abstract: An antenna device includes a first antenna element resonating at a frequency in a first frequency band, a first matching circuit attaining matching between a first radio frequency circuit and the first antenna element, a second antenna element resonating at a frequency in a second frequency band, a second matching circuit attaining matching between a second radio frequency circuit and the second antenna element, a first band-pass circuit connected with the second antenna element and the second matching circuit to selectively conduct a signal in the second frequency band and a second band-pass circuit connected with the second antenna element and grounded to selectively conduct a signal in the first frequency band, wherein the second antenna element is utilized as a parasitic element for the first antenna element.

Abstract: The microstrip array antenna includes a dielectric substrate formed with a conductive ground plate at a back surface thereof, and strip conductors formed on a front surface of the dielectric substrate. The strip conductors includes a linear main feeding strip line, and a plurality of array elements connected to the main feeding strip line, the array elements being disposed at least one of both sides of the main feeding strip line at a predetermined interval along a longitudinal direction of the main feeding strip line. Each of the array elements includes a sub-feeding strip line connected to the main feeding strip line, a rectangular radiating antenna element connected to a terminal end of the sub-feeding strip line, and a stub connected to the sub-feeding strip line. The stub is disposed between the main feeding strip line and the radiating antenna element.

Abstract: A diversity antenna apparatus includes a feed line through which radio communication power is transmitted, antennas connected in cascade through the feed line, and a first rectifier device placed in the feed line, wherein a first one of the antennas and a second one of the antennas each include a second rectifier device having an input terminal thereof connected to the feed line, an antenna device connected to an output of the first rectifier device, and a third rectifier device having an input terminal thereof connected to a connection point between the second rectifier device and the antenna device, and having an output terminal thereof grounded, wherein the first rectifier device placed in the feed line connects between the input terminal of the second rectifier device of the first one of the antennas and the input terminal of the second rectifier device of the second one of the antennas.

Abstract: A MIMO antenna apparatus is provided. The MIMO antenna apparatus includes a plurality of antenna devices each having an operation line extending parallel by a predetermined extension length from one end portion and configured to operate in a resonant frequency band when power is supplied. The apparatus also includes a main board divided into a device area and aground area. The apparatus further includes a plurality of ground pads each extending from the ground plate to the device area in the main board and configured to connect the one end portion of each of the antenna devices to the ground plate. The apparatus also includes a plurality of feeding pads mounted adjacent to the ground pad in the device area and configured to connect each of the antenna devices to the main board and to provide power to each of the antenna devices.

Abstract: An electrically tilted antenna system with polarization diversity has a dual polarized, tilt adjustable antenna (32). The antenna (32) has dipoles (34, 36) of two orthogonal polarizations associated with independently adjustable electrical tilt angles. The tilt angles are implemented by relative delays between corporate feed input or output signals, the delays being introduced by an antenna tilt assembly (54). Two signal feeders (F21, F22) associated with different antenna polarizations connect the antenna tilt assembly (54) to a base station filter assembly (50): the base station filter assembly 50 routes transmit signals from base stations (BS21, BS22) to different antenna polarizations via respective feeders (F21, F22) and the antenna tilt assembly (54). This assembly also divides receive signals from feeders (F21, F22) between both base stations (BS21, BS22).

Abstract: An antenna device includes a first antenna element that resonates with a first resonant frequency, a second antenna element that resonates with a second resonant frequency, a first frequency stabilizing circuit connected to a feeding end of the first antenna element, and a second frequency stabilizing circuit connected to a feeding end of the second antenna element. The first antenna element and the second antenna element can be arranged along two sides of a case of a communication terminal apparatus, for example.

Abstract: The invention relates to an improved method for operating a phase-controlled group antenna as well as an associated phase shifter assembly and a phase-controlled group antenna, characterized by, inter alia, the following features,: the phase shifter assembly is designed such that at least one of the following two conditions is met: RN: R1?n+k ud/or PhN: Ph1?n+k, where RN is the largest radius, and R1 is the smallest radius of a conductor segment (11) relative to the phase shifter assembly (7), where k is a value of 0.2 and particularly 0.25, 0.30, or preferably 0.40.

Abstract: Aspects of a method and system for identifying a radio frequency identification (RFID) tag location using a switchable coil are presented. Aspects of the systems may include one or more processors that enable selection of an inductor coil from a plurality of inductor coils. The selection of the inductor coil may be based on a change in an electromagnetic field, with respect to an initial electromagnetic field, as detected by the selected inductor coil. The processors may enable transmission of a signal, having a transmitter frequency in the UHF frequency band, via the selected inductor coil.

Abstract: A first adjustment circuit adjusts an impedance of a first antenna, and a second adjustment circuit adjusts an impedance of a second antenna. A coupling reduction circuit reduces an amount of coupling of the first and second antennas. A first reception power measurement unit measures first reception power received from the first antenna, and a second reception power measurement unit measures second reception power received from the second antenna. A selection unit selects a circuit from among the first adjustment circuit, the second adjustment circuit, and the coupling reduction circuit. A circuit control unit controls the impedance of the selected circuit so that the value of the evaluation function proportional to the product of the first reception power and the second reception power becomes larger.

Abstract: Disclosed is an antenna apparatus which can control directivity of a plurality of radiation elements using one parasitic element. The antenna apparatus includes two radiation elements arranged on a base parallel to each other, and a parasitic element disposed between the two radiation elements. Radiation directivity of the two radiation elements is controlled according to the length of the parasitic element. This configuration provides a small-sized antenna apparatus including a plurality of radiators with desired directivity.

Abstract: Method, systems, and articles of manufacture for assigning priority to antenna are disclosed. In accordance with a preferred embodiment of the invention, reader antenna (151, 152, 153) identify the location of an object by detecting a tag or other identifier associated with each object. Sensors (121, 122, 123) can be provided to provide additional information regarding the environment of the objects to their surroundings. A priority order is assigned to the reader antenna based on the location and other characteristics of the objects and/or their environment. A polling sequence for reading the reader antennae is determined according to the priority order.

Abstract: There is disclosed an apparatus comprising a plurality of three-dimensional radiator elements, each radiator element transmitting or receiving electromagnetic waves. The radiator elements are arranged so that at least one pair of adjacent radiator elements are separated by a gap, which behaves like a waveguide inducing by a coupling effect electromagnetic interferences with the waves. The apparatus includes a portion to establish a galvanic contact between the adjacent radiator elements, so as to suppress the coupling effect, while allowing for the thermal expansion of the adjacent radiator elements.

Abstract: An antenna arrangement (200, 300, 400) with antenna units (220, 230) comprising an input port (201, 202), a power divider (202, 204) for dividing an input signal into a major and a minor part with a ratio 11, a network (211, 216) with a sum input port, a difference input port, and first and second output ports, first (215, 217) and second antenna (214, 218) elements of a first and a second polarization. Signals to the sum input port are output with a first relation between them and signals to the difference input port are output with a second phase relation. The antenna units are arranged so that the major part of an input signal is connected to the sum port of a network and the minor part of an input signal is connected to the difference port of another network, and the first and second output ports of a network are connected to first and second adjacent antenna elements of the same polarization.

Abstract: A vertically stacked array antenna structure is described. The structure comprises a radiating layer, a passive layer disposed under said radiating layer, an active layer disposed under said passive layer, and an interface assembly. The radiating layer comprises an array of radiating elements. The passive layer has only passive components. At least a part of the passive components includes an array of RF duplexers corresponding to the array of radiating elements. The active layer comprises RF amplifiers. The interface assembly comprises at least one metallic frame which is in direct thermal coupling with the RF amplifiers. The interface assembly is configured for providing thermal communication of the active layer with a heat exchanger.

Abstract: An access control system has at least two antenna coils (12, 13 and 14, 15) arranged one behind the other at an entrance lane (4) and connected to a reading device (20), which with a capacitance (40, 41) form an oscillating circuit (30, 31). Here either the one oscillating circuit (30, 31) with the in entrance direction (5) first antenna coil (12, 13) or the other oscillating circuit with the second antenna coil (14, 15) is actuated by the reading device (20), in order to read out data for the purpose of access authorization from a transponder (22) which is carried by a user and has a transponder coil (24) coupleable with the antenna coils (12 to 15). The oscillating circuit (30, 31) not actuated by the reading device (20) is detuned or short-circuited.

Abstract: In one embodiment, an integrated circuit antenna array includes: a substrate, a plurality of antennas adjacent the substrate; and an RF network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrate, wherein the RF feed network and the distributed plurality of amplifiers are configured to form a resonant network such that if a timing signal is injected into an input port of the RF network, the resonant network oscillates to provide a globally synchronized RF signal to each of the antennas.

Abstract: A mobile communication base station antenna has a first array antenna and a second array antenna. Antenna elements of the first and second array antennas are classified into the first, second and third groups G1, G2 and G3. A first feeding port is connected to the antenna elements in the odd number groups (the first group G1 and the third group G3) of the first array antenna and the antenna elements in the even number group of the second array antenna. On the other hand, a second feeding port is connected to the antenna elements in the even number group (the second group G2) of the first array antenna and the antenna elements in the odd number groups (the first group G1 and the third group G3) of the second array antenna.

Abstract: An antenna control system in which various antenna elements in a vertical row are coupled by fixed transmission lines to a central feeding point for a common signal. Adjustment of the phase of the common signal is achieved by means of a linearly movable slide having dielectric body portions influencing the signal velocity along said fixed transmission lines. Further, an electrical motor is used for linearly displacing said movable slide with said dielectric body portions.

Abstract: There is disclosed an electromagnetic transmission line arrangement with a phase shifter, comprising at least one conductive branch line (51a,51b) extending from a junction point (51c) to an associated output port, for the propagation of electromagnetic signals in a frequency band along said branch line. The phase shifter includes at least one dielectric body (52,53,54) which is mounted so as to be movable sideways in a transverse direction into a delaying position at least partly covering said branch line (51a,51b). The longitudinal distribution of its dielectric material (?) is adapted to cause, when being moved transversally into said delay position, a controlled phase shift but also to secure, by way of said selected longitudinal distribution of its dielectric material in conjunction with said at least one branch line, an input impedance matching of said transmission line arrangement. The transmission line arrangement can be used in the feeding network to a microwave antenna.

Abstract: An RF conduit according to one embodiment includes a pair of antennas coupled together by a transmission line such that RF tunneling occurs along the transmission line between the antennas and an RF signal received at one antenna is reradiated at the other antenna. An RF conduit according to another embodiment includes a pair of antenna traces each having first and second end portions and a central portion extending between the first and second end portions, wherein the central portions are positioned relative to each other such that they form a transmission line for RF tunneling therealong between the first ends of the antenna traces and the second ends of the antenna traces and an RF signal received at the first ends is reradiated at the second ends. Additional systems and methods are presented.

Abstract: According to various exemplary embodiments, an antenna assembly generally includes one or more antennas, such as a single multi-frequency antenna, first and second stacked patch antennas, etc. The antenna assembly may be operable for receiving signals having different frequencies (e.g., a frequency associated with a satellite digital audio radio service (SDARS), a frequency associated with a global positioning system (GPS), etc.). The antenna assembly may generally include at least one antenna (e.g., a single multi-frequency antenna, first and second stacked patch antennas, etc.) having at least one feed point and tuned to at least one of a first frequency and a second frequency that is different than the first frequency. A low noise amplifier may be in communication with the at least one feed point for amplifying signals having the first frequency and signals having the second received from a signal output. A single communication link may be used for communicating an output signal of the antenna assembly.

Abstract: An antenna device that radiates or receives a radio wave includes: a first wire line: a second wire line that is parallel to the first wire line; a power feeding/receiving point that is provided at proximal portions of the first wire line and second wire line; and a terminal resistance that is provided at distal end portions of the first wire line and second wire line.

Abstract: A mobile wireless communications device has a portable handheld housing. A circuit board is carried by the portable handheld housing. RP circuitry is carried by the circuit board. A diversity antenna and main antenna are carried by the portable handheld housing and coupled to the RF circuitry and operative together. The RF circuitry tunes the diversity antenna into a diversity communications frequency band to achieve a diversity mode of operation with the main antenna and tunes the diversity antenna into a non-diversity communications frequency band when cross-coupling has occurred from the diversity antenna to the main antenna when operating in the diversity communications frequency band. A switch is carried by the portable handheld housing and connected to the RF circuitry and coupled between the diversity and main antennae and disconnects the diversity antenna when operating in the non-diversity band to prevent cross-coupling from the diversity antenna to the main antenna.

Abstract: In one embodiment, an integrated circuit antenna array is provided that includes: a low-voltage substrate supporting an RF transmission network, and a high-voltage substrate bonded to the low-voltage substrate, the high-voltage substrate supporting a plurality of antennas coupled to the RF transmission network through switch-mode power amplifiers integrated into a surface of the high voltage substrate.

Abstract: The present invention provides a phaser pack for an elliptically polarized antenna that includes a first structural component, a second structural component and a cylindrical inner conductor. The first structural component includes a recess, coupled to an input port, that forms a first portion of a cylindrical conductive path, while the second structural component includes a recess, coupled to a plurality of output ports, that forms a second portion of the cylindrical conductive path. The recesses of the first and second structural components form a continuous cylindrical conductive path when the first and second structural components are mated. The cylindrical inner conductor includes a plurality of tee junctions and a plurality of transition segments, coupled to the input port and the plurality of output ports, disposed within the continuous cylindrical conductive path to form a coaxial conductor that provides different phase delays to at least two of the plurality of output ports.

Abstract: Dual band antenna systems and methods providing isolation between bands are provided. The system includes a pair of superimposed antenna radiating elements, each of which is connected to an associated feed network. The feed networks may comprise a quadrature hybrid networks. Coupling paths between the first and second feed networks are arranged such that a first component of a first signal coupled from a first feed network to a second feed network will be 180° out of phase with a second signal component of the first signal coupled from the first feed network to the second feed network at the input/output of the second feed network. The resulting destructive interference results in isolation between the bands.

Abstract: The present invention provides devices, systems and methods for imaging and transmitting images. In particular, the present invention provides, systems, methods and devices for free-space polarization modulation.

Abstract: The present invention relates to a method for acquiring a configuration of a re-configurable antenna, having at least two different antenna element configurations, where the antenna's element mutual coupling characteristics are known in advance in the form of an antenna coupling matrix (Ck(n)), the acquired configuration having a desired effect on a transmission channel, the method comprising the steps: setting an initial configuration of the re-configurable antenna, resulting in an initial coupling matrix (C0); estimating the transmission channel matrix (?(n)), which transmission channel matrix (?(n)) includes the effect of the antenna; calculating a generic transmission channel matrix ({tilde over (?)}(n)), which generic transmission channel matrix ({tilde over (?)}(n)) excludes the effect of the antenna; and extracting a coupling matrix (C) that provides a desired transmission channel matrix (H(n)), including the effect of the antenna.

Abstract: A modularly expandable, phased array antenna having a rhomboidal shaped antenna aperture formed by a plurality of rhomboidal shaped subarrays. Each subarray has a rhomboidal shaped printed wiring board on which is formed a plurality of antenna elements, where the elements collectively form a rhomboidal shape in accordance with the printed wiring board. The rhomboidal shaped subarrays enable a modular aperture to be formed without producing any gaps between columns or rows of adjacently positioned subarrays. Thus, a uniform, consistent spacing is maintained between all the antenna elements on the subarrays. This improves antenna radiation and low observability performance for the antenna system, as well as reducing the overall size of the antenna aperture and its cost of construction.

Abstract: The invention consists of an antenna array, for the reception of two frequency bands, comprising two pairs of radiating elements and an network for excitation of these elements for the reception of one of the bands. The radiating elements are positioned so as to free the center of the array to allow colocalized reception of the other band. The excitation network comprises hybrid elements so as to introduce a certain phase shift between the radiating elements allowing a dual circular polarization. This network must comply with two constraints: The phase shift introduced between the hybrids must be equal to the phase shift of the hybrid modulo 2 integer. and the length of the line L1 placed between the first hybrid H1 and the first patch PA1 is such that it introduces a phase shift equal to ? modulo 2 integer.

Abstract: An antenna arrangement comprising at least two antenna arrays, each array comprising a plurality of radiating elements being arranged so as to have at least a plurality of corresponding radiating element positions, wherein for each radiating element there is associated an excitation means comprising a magnitude weight and a delay weight, wherein there is a first set of excitation means associated with a first array providing a first radiation pattern and a second set of excitation means associated with a second array providing a second radiation pattern. At least two respective excitation means associated with a corresponding radiating element position of at least two respective arrays have at least two different magnitude weights, and at least two respective excitation means associated with a corresponding radiating element position of at least two respective arrays have at least two different delay weights.

Abstract: System and method for improving the interference resistance of an radio frequency (RF) antenna system through passive prescreening of the RF energy incident upon the antenna. The invention physically partitions the RF environment into two or more sectors with respect to the direction of arrival of incident energy. The power level of the RF frequencies of interest incident upon each sector is determined such that whenever the power level exceeds a given threshold, the received signal from energy incident on that sector is modified.

Abstract: An array antenna module includes multiple antenna assemblies. Each antenna assembly generally includes a first radiating element and a second radiating element spaced apart from the first radiating element and capacitively coupled thereto. A first transmission line is capacitively coupled to the first radiating element, and a second transmission line is electrically coupled to the first radiating element by a connector. The antenna assembly is operable to transmit at least one or more signals to at least one or more wireless application devices and/or to receive at least one or more signals from at least one or more wireless application devices. The first radiating element, second radiating element, first transmission line, and/or second transmission line are coupled to substrates. And at least one or more of the substrates may include epoxy resin bonded glass fabric such as, for example, flame retardant 4.

Abstract: Methods for tuning at least a region of a tunable frequency selective surface. The methods disclosed how to achieve an opaque or absorptive state in at least a region of tunable frequency selective surface.

Abstract: An array antenna includes: a plurality of first antenna elements arrayed at specified element intervals on a plane of a board; a plurality of second antenna elements arrayed at the element intervals in parallel to an array direction of the first antenna elements on the plane; a first power supply circuit for supplying electric power to the respective first antenna elements by a line branched at a first branch point on the plane; and a second power supply circuit for supplying electric power to the respective second antenna elements by a line branched at a second branch point shifted by a specified distance in the array direction with respect to the first branch point on the plane.

Abstract: According to one embodiment of the present invention, a microwave or millimeter wave module includes a dielectric layer having a pocket formed substantially through the dielectric layer. The dielectric is attached to a metal substrate. The pocket has substantially vertical sidewalls. An integrated circuit is disposed in the pocket. Opposing sides of the integrated circuit are substantially parallel to the sidewalls of the pocket. An interconnect electrically couples the integrated circuit to a bond pad disposed on the outer surface of the dielectric layer. The interconnect has a length that is minimized to result in reduced inductance of the semiconductor device.

Abstract: An antenna system is disclosed that includes two or more antennas and an impedance matching network. The antennas of the antenna system are closely separated, such as by a distance of no more than a wavelength of received signals divided by two. The impedance matching network is adapted to respond to and counteract performance degradation resulting from cross coupling between the antennas. Related methods for use in an antenna system are disclosed.

Abstract: A waveguide includes a dielectric substrate having first and second opposed surfaces defining a longitudinal wave propagation path therebetween; and a conductive grid on the first surface of the substrate and comprising a plurality of substantially parallel metal strips, each defining an axis. The grid renders the first surface of the substrate opaque to a longitudinal electromagnetic wave propagating along the longitudinal wave propagation path and polarized in a direction substantially parallel to the axes of the strips. The grid allows the first surface of the substrate to be transparent to a transverse electromagnetic wave having a transverse propagation path that intersects the first and second surfaces of the substrate and having a polarization in a direction substantially normal to the plurality of metal strips. A diffraction grating on the second surface allows the waveguide to function as an antenna element that may be employed in a beam-steering antenna system.

Abstract: An apparatus comprises a structure, an array of oscillator units, a plurality of waveguides in the structure, and a synchronizing cavity located within the structure. The array of oscillator units has a plurality of rows and a plurality of columns associated with the structure. Oscillator units in a row within the array of oscillator units are directly coupled to each other. The plurality of waveguides is configured to couple the array of oscillator units to the synchronizing cavity. The synchronizing cavity is configured to cause the array of oscillator units to operate at substantially a common frequency.

Abstract: An exemplary embodiment of a dual band antenna array includes a folded thin circuit board structure with a thin dielectric layer and a conductor layer pattern formed on a first surface of the dielectric layer, the circuit board structure folded in a plurality of folds to form a pleated structure. A first array of radiator structures on the first surface is configured for operation in a first frequency band in a first polarization sense. A second array of radiator structures is configured for operation in a second frequency band in a second polarization sense. A conductor trace pattern is formed on the folded circuit board to carry control signals, DC power and RF signals. Active RF circuit devices are attached to the folded circuit board in signal communication with the conductor trace pattern.

Abstract: The present invention relates to a device and method for simulating a radio channel with a defined characteristic between at least one antenna port (102a, 102b) of a first device (101), and a second device (103) in a test environment. The device comprises a first antenna (104a) adapted to transmit signals, and arranged to provide a first radio channel (105a) between the first antenna (104a) and the second device (103) and, a second antenna (104b) adapted to transmit signals, and arranged to provide a second radio channel (105b) between the second antenna (104b) and the second device (103). A characteristic of the second radio channel (105b) is dissimilar to a characteristic of the first radio channel (105a).

Abstract: A first conduction part (12) coated with a conductive paint is formed on a back housing (1CAR) to be attached to one housing of a portable telephone unit at a position near a hinge mechanism (9) which connects the one housing to the other housing of the portable telephone unit. A GPS antenna is disposed on the hinge mechanism (9) side inside the other housing. The first conduction part (12) is in contact with a conductive connection terminal (21). A condenser element (22C) and a coil element (22L) are connected in parallel between the connection terminal (21) and a reference potential line (10G) of a first circuit board (10) disposed inside the aforementioned one housing.

Abstract: An electronic device may include a multilayer circuit board having opposing major surfaces and edge surfaces extending between the opposing major surfaces, wireless processing circuitry on at least one of the opposing major surfaces, and an antenna element on at least one of the edge surfaces. The multilayer circuit board may include a conductive trace coupling the antenna element to the wireless processing circuitry.