Abstract: Systems and methods related to the detection of incoming wireless signals. An antenna array is synthesized by having a single antenna, coupled to a receiver, spatially translated along an arbitrary trajectory. As the antenna is being spatially translated, a data processing means samples the incoming signal based on a clock signal provided by a system clock. By sampling the incoming signal at different times at different spatial locations on the arbitrary trajectory, the system acts as a synthetic antenna array. The different samplings of the incoming signal at different times and positions provide signal diversity gain as well as different readings which can be used to detect an incoming signal. The invention is applicable to detecting a wireless communications signal or a GNSS signal under various conditions. The system may include at least one sensor which can provide data for use in calculating data related to the arbitrary trajectory.

Abstract: To realize a receiving system that can excellently receive radio signals before and after a body insertable device, which is a radio signal source, is inserted into a subject, the receiving system has a first receiving antenna (1), a second receiving antenna (2), and a receiving apparatus (3). The first receiving antenna (1) is used when the body insertable device is outside the subject. The second receiving antenna (2) is used when the body insertable device is inserted into the subject. The receiving apparatus (3) performs a receiving processing on radio signals received through the first receiving antenna (1) or the second receiving antenna (2).

Abstract: The present invention relates to a wireless transmitter comprising a transmitter radio unit working a wireless transmitter comprising a transmitter radio unit working in the millimeter wave frequency band using a directional antenna and a bidirectional radio unit working in a frequency range different from said transmitter radio unit and using an omnidirectional antenna. The invention further relates to a wireless receiver and a wireless relay.

Abstract: An embodiment of the present invention provides a wireless station (STA) capable of implicit feedback in a wireless local area network, comprising at least one power amplifier, a plurality of antennas capable of being connected with said at least one power amplifier, and a switch capable of switching the connection between said plurality of antennas and said at least one power amplifier thereby enabling said wireless station to sound a complete channel matrix for an access point (AP) in communication with said wireless station (STA).

Abstract: A receiver within a wireless device is able to couple to different antennas with different impedances. The wireless device includes a first antenna pin for coupling to a first antenna with a first impedance, a second antenna pin for coupling to a second antenna with a second impedance and a switch for selecting at least one of the first antenna and the second antenna to couple to the receiver.

Abstract: The present invention relates to a wireless communication device, such as a transponder, that has a plurality of antennas for multi-frequency usage. The wireless communication device comprises a control system, communication electronics, memory, and the aforementioned antennas. A wireless communication device having a pole antenna may be used with one or more loop conductor antennas to achieve the desired operating frequencies. A wireless communication device having a dipole antenna may be coupled across a loop conductor antenna to provide different loop conductor configurations depending on the frequency.

Abstract: A high-frequency module according to the present embodiment includes a substrate, a circuit board, and a resonator. The substrate has an input-output portion for high-frequency signals formed on one surface thereof. The circuit board includes a dielectric waveguide line with its end face exposed, and is placed on the one surface of the substrate such that a virtual plane extending beyond the end face is intersected by the one surface of the substrate. The resonator includes input-output end portions for high-frequency signals at ends thereof, in which one of the input-output end portions is connected to the end face of the dielectric waveguide line, and the other thereof is connected to the input-output portion of the substrate.

Abstract: An electric field generated by another electric field communications apparatus reaches electric field sensor ES. Electric field sensor ES outputs an electric signal in response to the changes in the electric field. The electric field that reaches electric field sensor ES enters a return path of the electric field communications apparatus that is a source of the electric field. By locating electric field sensor ES between receiver main electrode ERB and receiver return electrode ERG, electric field intensity at the location where electric field sensor ES is positioned. Therefore, sensitivity of the changes in electric field for electric field communications apparatus TRX can be improved.

Abstract: A wireless communication apparatus having a plurality of antennas 11-1 to 11-M and for diversity-combining signals received by the antennas 11-1 to 11-M, includes a first combining unit (23, 24) for combining received power of the antennas 11-1 to 11-M based on a first algorithm; a second combining unit (21-1 to 21-M, 22, 23) for combining received power of the antennas 11-1 to 11-M based on a second algorithm, which is different from the first algorithm; a determination unit 15 for determining whether there is a delayed wave based on the received signals; and a control unit 16 for selecting either one of the first combining unit (23, 24) and the second combining unit (21-1 to 21-M, 22, 23) depending on a determination result by the determination unit 15 and controlling a selected combining unit to combine received power of the antennas 11-1 to 11-M.

Abstract: Provided a self-biased receiver system using a multi-fed antenna, including: at least one first port connected to an electronic circuit; and a second port connected to a feeder forming a DC (direct current) voltage using an input electromagnetic wave and feeding the DC voltage to the electronic circuit.

Abstract: Methods and systems for receiving in-phase and quadrature (I and Q) radio frequency (RF) signals without a phase shifter utilizing a leaky wave antenna are disclosed and may include generating in-phase and quadrature signals using a leaky wave antenna coupled to one or more low-noise amplifiers (LNAs) on a chip and without a phase shifter. The RF I and Q signals may be communicated from the single leaky wave antenna using coplanar feed points and/or feed points on a top surface and a bottom surface of the single leaky wave antenna. The leaky wave antennas may be integrated on the chip, on a package to which the chip is affixed, and/or on a printed circuit board to which the chip is affixed. The RF I and Q signals may be amplified by the one or more LNAs and may down-convert the RF I and Q signals to baseband signals.

Abstract: An apparatus and method in a Time Division Duplex (TDD) wireless communication system are provided. The apparatus includes two 90° hybrid couplers and a phase converter block. The two 90° hybrid couplers each separate a signal into two signals and output the two signals, and each couple two signals and output the coupled signal. The phase converter block connects between the two 90° hybrid couplers. In a transmission mode, the phase converter block identically varies phases of two signals and outputs the varied two signals to the second 90° hybrid coupler. In a reception mode, the phase converter block varies phases of two signals and outputs the varied two signals to the first 90° hybrid coupler.

Abstract: In one embodiment of the present invention, an antenna arrangement apparatus includes a dipole reception antenna including a first pole portion and a second pole portion. A length of coaxial cable is provided and constitutes a feedline, the length of coaxial cable including a proximal end with respect to the first and second pole portions. The proximal end of the length of coaxial cable is coupled to the first and second pole portions via a common-mode filter.

Abstract: A wireless communication apparatus, having a plurality of antennas 11-1 to 11-M and for diversity-combining signals received by the plurality of antennas 11-1 to 11-M, is provided with a combining information calculation unit 14 for calculating antenna combined amplitude and combining weights based on received power of the plurality of antennas 11-1 to 11-M, a combining unit 15 for weighting and combining the signals received by the plurality of antennas 11-1 to 11-M based on the combining weights calculated, and a decoding processing unit 16 for decoding a combined reception signal generated by the combining unit 15. It thereby improves fading durability of the decoding process by reducing influence of multipath fading caused by arrival waves with delays, even in a case of using only a small number of reception antennas, and maintains a stable reception condition consistently, as well as achieving downsizing of and reduction in cost of hardware.

Abstract: The present invention relates to a display arrangement comprising a display means and receiving and/or transmitting means adapted to be arranged in association with said display means. An optically transparent and electrically conductive layer structure is adapted to be provided on the display means. Said optically transparent and electrically conductive layer structure is arranged or structured to form a plurality of receiving and/or transmitting elements constituting said receiving and/or transmitting means. Feeding and/or controlling means are provided to individually or groupwise feed and/or control said receiving and/or transmitting elements.

Abstract: An apparatus including: a first transistor including a first port configured for connection to an antenna having a first impedance at a first frequency band, and a second port configured for connection to radio circuitry, the first port of the first transistor being configured to have an impedance at the first frequency band substantially equal to the complex conjugate of the first impedance.

Abstract: An apparatus including a TX/RX antenna switch (TRAS) in a time division duplex (TDD) wireless communication system is provided. In particular, an apparatus for protecting an RX low-noise amplifier (LNA) from a radio-frequency (RF) TX signal using a 180° hybrid coupler is provided. The TRAS apparatus includes a 180° hybrid coupler, a phase shifter and a combiner/divider unit.

Abstract: In one embodiment, a frequency agile receiver is provided that includes an antenna: a first diode having its anode coupled to ground through a first conductor; a second diode having its anode coupled to the cathode of the first diode through a second conductor, the antenna coupling to the second conductor, the second diode having its cathode coupled to an output node through a third conductor, wherein at least one of the first, second, and third conductors comprises a shape memory alloy conductor; and a tuning circuit adapted to drive a bias current into the shape memory alloy conductor.

Abstract: A portable wireless device that makes it possible to maintain any desired matching state and can suppress an increase in the loss accompanying matching if the impedance characteristic of an antenna changes with expansion/storage of the antenna, deformation of a housing, etc., is provided. Two channels of signal paths that can be selected by switch section 11, 15 are provided between an antenna 10 and a reception circuit 16; a first low noise amplifier 13 that can amplify a received high frequency signal is provided in one path and a second low noise amplifier 18 having an impedance characteristic different from the low noise amplifier 13 is provided in the other signal path. The form of the antenna 10 or the form of a housing is detected in a form change detection section 20 and the two channels of signal paths are automatically switched in a control section and two types of impedance matching states are used properly.

Abstract: A radio apparatus comprising: a radio frequency processing module for converting radio frequency signals from an antenna to intermediate frequency signals; an intermediate frequency processing module located remotely from the radio frequency processing module, for receiving intermediate frequency signals and processing said signals according to at least one communications protocol; and a digital data link for connecting the radio frequency processing module and the intermediate frequency processing module, for transfer of the intermediate frequency signals.

Abstract: The present invention relates to a communication transmission field, and particularly provides a device, a method, and a system for aligning an antenna. The method includes steps as follows. An input signal is received, and a receiver signal strength indication (RSSI) value is output according to a strength of the input signal. The RSSI value is received, and a practically received power value corresponding to the input signal is acquired by looking up a corresponding table between the RSSI and power. An antenna rotation signal and an alignment indication signal are output. The antenna is adjusted according to the antenna rotation signal so as to change a receiving angle of the antenna. Then, it is displayed that the antenna is aligned according to the alignment indication signal. In the present invention, the man-made operation errors are reduced, thus the network quality is effectively ensured.

Abstract: An antenna device including: an antenna unit having an oscillating body capable of oscillating at a predetermined natural frequency and being displaceable by an external magnetic field, and a converter for converting motion of the oscillating body to an electrical signal, when a radio wave signal having a frequency band for inducing resonance of the oscillating body comes, the oscillating body resonating with a magnetic field component of the radio wave signal, the converter converting resonance of the oscillating body to the electrical signal, and an electrical signal corresponding to the radio wave signal being outputted; a sensitivity varying section capable of varying degree of displacement of the oscillating body occurring by the external magnetic field; and a sensitivity controller for adjusting the degree of the displacement by using the sensitivity varying section in accordance with the electrical signal outputted from the antenna unit.

Abstract: The present invention allows transmission of multiple signals between masthead electronics and base housing electronics in a base station environment. At least some of the received signals from the multiple antennas are translated to being centered about different center frequencies, such that the translated signals may be combined into a composite signal including each of the received signals. The composite signal is then sent over a single feeder cable to base housing electronics, wherein the received signals are separated and processed by transceiver circuitry. Prior to being provided to the transceiver circuitry, those signals that were translated from being centered about one frequency to another may be retranslated to being centered about the original center frequency.

Abstract: An antenna device includes an oscillating body capable of oscillating at a predetermined natural frequency, and being displaceable by external magnetic field, and a converter for converting motion of the oscillating body to an electrical signal. When a radio wave signal of a frequency band at which the oscillating body resonates comes, the oscillating body resonates with a magnetic field component of the radio wave signal, and the converter converts the motion to the electrical signal, whereby an electrical signal corresponding to the radio wave signal is outputted.

Abstract: A system and method for providing a tunable antenna system within a mobile device that enables the mobile device to receive broadcast communication signals. The antenna system includes a tunable antenna and a tuning module that is operable to selectively adjust the resonant frequency of the tunable antenna, such that the antenna may efficiently receive a plurality of discrete narrow band signals across a broad frequency spectrum. The tuning module may also include a lookup table for use by the tuning module to selectively adjust the resonant frequency of the antenna. Further, the antenna system may include a temperature compensation module that is operable to compensate for any temperature sensitive components in the tunable antenna system.

Abstract: An antenna arrangement apparatus includes a resonant feed-line dipole reception antenna having a first pole portion and a length of coaxial cable. The length of coaxial cable includes a second pole portion. The apparatus also includes a common-mode filter. In at least one embodiment, the length of coaxial cable has a distal end with respect to the first pole portion, the distal end being coupled to the common-mode filter.

Abstract: A data communication device includes: an antenna resonance circuit; a detection circuit; an arithmetic processing device; and a first switch. The antenna resonance circuit receives a signal in the ASK (Amplitude Shift Keying) format. The detection circuit demodulates a digital baseband signal based on the reception signal. The arithmetic processing device detects an appearance time of an edge in the demodulated digital baseband signal based on a preamble part of the reception signal. The first switch short-circuits both end of the antenna resonance circuit at first timing in synchronization with the appearance time of the edge.

Abstract: p-MOSFETs (21) and (22) are used as amplifying elements for amplifying a signal input from a loop antenna (1) and are directly connected to the loop antenna (1). Thus, the signal input from the loop antenna (1) can be received in a high impedance through the p-MOSFETs (21) and (22). Consequently, a transformer for carrying out a conversion into a high impedance or the like is not required, and furthermore, the impedance of the loop antenna 1 itself does not need to be increased, thereby suppressing the occurrence of a current noise.

Abstract: A transmitting/receiving circuit (17) holds a communication at a frequency f1 by using an antenna (11a) or an antenna (11b), and a transmitting/receiving circuit (3) holds a communication at a frequency f2 by using an antenna (1). In response to a receiving signal intensity, a switching circuit (14) connects any one of the antennas (11a),(11b) to the transmitting/receiving circuit (17) as a selected antenna for use in communication, and connects the other antenna to a terminating circuit (13) as a non-selected antenna. The terminating circuit (13) connected to the non-selected antenna has an impedance that satisfies a predetermined phase condition at the frequencies f1, f2 respectively, suppresses an inter-antenna coupling between the non-selected antenna and the selected antenna and the antenna (1), and suppresses degradation in antenna characteristic caused due to the inter-antenna coupling between the selected antenna and the antenna (1).

Abstract: A process device wireless adapter includes a wireless communications module, a metallic housing, and an antenna. The wireless communications module is configured to communicatively couple to a process device and to a wireless receiver. The metallic housing surrounds the wireless communication module and has a first end and a second end. The first end is configured to attach to the process device. In one embodiment, a metallic shield contacts the housing second end such that the metallic shield and the housing form a substantially continuous conductive surface. The antenna is communicatively coupled to the wireless communication module and separated from the wireless communication module by the metallic shield. Preferably, the wireless communications module illustratively includes a printed circuit board that has a length that is greater than its width.

Abstract: An antenna device receives radio waves, excites received signals corresponding to the received radio waves, and transmits the received signals to a radio wave-using operation module block including received signal using elements. The radio wave-using operation module block includes a pair of flat surfaces facing in opposite directions and an outer circumferential surface connecting the peripheral edges of the flat surfaces to each other. The antenna device includes an elongate antenna core member which extends along the outer circumferential surface of the radio wave-using operation module block, and an antenna coil which is wound around at lease a part of the antenna core member in the longitudinal direction thereof and which is connected to the received signal using elements of the radio wave-using operation module block.

Abstract: The invention relates to systems and methods which may allow the determination of a correction factor between full scale antennas and scale antennas in order to determine the coupling loss of the full scale antennas on full scale structures based on models of the full scale structures.

Abstract: A phased array system having antennas, non-variable phase shifters, and switches. The non-variable phase shifters are configured to be coupled selectively to a transmitter or a receiver. A non-variable phase shifter is configured to shift a phase of an electromagnetic energy wave that traverses the non-variable phase shifter by a fraction of a period of the electromagnetic energy wave for a range of frequencies of the electromagnetic energy wave. At least one of the fraction and the range associated with the non-variable phase shifter is different from at least one of the fraction and the range associated with other non-variable phase shifters. The switches are configured to couple selectively the antennas to the non-variable phase shifters, the transmitter, or the receiver.

Abstract: The invention aims at providing an NRD guide transceiver not requiring a change-over switch for transmission and reception, a download system being of a simple structure and capable of downloading large-capacity data such as video data and the like in a short time using this transceiver and a download memory used in this system, said NRD guide transceiver comprising a pair of dielectric strips (154, 155) disposed between a pair of conductor plates (152, 153) arranged in parallel with each other at a specified interval, wherein Schottky barrier diodes (156, 157) are connected to the respective ends of both of said pair of dielectric strips, a low pass filter (164) is connected to a signal input terminal and a high pass filter (165) is connected to an IF output terminal.

Abstract: Methods and systems are provided for allowing an FDD radio to be configured to operate in Rx-high/Tx-low or Rx-low/Tx-high modes of operation. In accordance with one aspect, this is achieved in an FDD radio configuration that includes multiple switches, multiple Rx electronics, and multiple Tx electronics, allowing a diplexing filter to have selectively coupled to its high and low terminals desired Tx or Rx paths, such as to allow the radio to operate in one or another mode.

Abstract: An adaptive antenna receiver whose follow-up performance is improved with respect to the angle change of the arrival direction of a desired signal. An antenna weight adaptive update section (11-1) adaptively updates the antenna weight according to a signals received by each antenna element and an error signal obtained from a desired signal corrected based on transmission channel estimation. An antenna weight direction constraint section (12-1) performs the constraint process for the antenna weight obtained by the antenna weight adaptive update section (11-1) to maintain the beam gain constant in the arrival direction of the desired signal. A beamformer (2-1) receives the desired signal through an array antenna using the antenna weight which has undergone the constraint process performed by the antenna weight direction constraint section (12-1).

Abstract: A system (200) for lossless transmit path antenna switching in a transceiver using quadrature combined power amplifiers is provided. The system is comprised of a quadrature (90°) hybrid power combiner (218) having a first and a second input port (260, 264), an isolated port (266), and an output port (262). The system is also comprised of a first and second RF power amplifier circuit (212, 214). The RF power amplifier circuits are respectively coupled to the first and second input ports. The RF power amplifier circuits have an output impedance that is selectively variable between a first state and a second state. The quadrature hybrid power combiner communicates RF energy from the first and second input ports to the output port when each RF power amplifier circuit is in its first state. The quadrature hybrid power combiner communicates RF energy from the output port to the isolated port when each RF amplifier circuit is in its second state.

Abstract: The present invention provides a method and system for mitigating fading and/or poor reception at a receiver. The receiver includes configurations each of which can provide different reception characteristics. The receiver evaluates the reception quality of the radio signal with the antenna in a first configuration and with the antenna in at least a second configuration and selects the antenna configuration that has the best evaluated reception for use until a subsequent iteration, when the process is repeated. The antenna configurations can correspond to configurations wherein reception is favored in different directions or to configurations wherein different antennas are selected, each antenna being spaced from each other antenna. The method can also improve the reception of a signal transmitted by selecting an antenna configuration for transmissions which provides improved reception quality at the destination receiver.

Abstract: An improved base station which cancels the effects of known fixed interference sources produces a signal substantially free from the interference sources thereby increasing total channel capacity. The adaptive interference canceller base station includes a main antenna for receiving signals from other communication stations and at least one directional antenna directed toward an interference source. The main and directional antennas are coupled together such that an output signal substantially free from the interference is generated.

Abstract: A communication apparatus includes an antenna configured to generate a magnetic field corresponding to a signal of a first communication method; and a communication unit configured to perform communication via a communication medium by transmitting/receiving a signal of a second communication method by using a potential difference between the communication unit and a predetermined reference point, the communication unit including a transparent conductive film. The antenna and the communication unit are integrated with each other.

Abstract: An LNA (2) is directly connected to a loop antenna (1), and a variable BPF (3), the passed frequency band of which is adapted to be variable, is connected in a stage following the LNA (2). In this way, the variable BPF (3) is used to configure a variable tuning circuit exhibiting a high Q-value without using any impedance conversion transformer between the loop antenna (1) and the LNA (2), whereby almost all of the constituent elements of the tuner part can be integrated in an IC chip (10) and further the variable tuning can maintain an excellent selectivity of a target frequency.

Abstract: An arrangement for dividing the output signal of the antenna filter of a radio receiver to two different paths, such as two parallel low-noise amplifier branches of a base station. The divider circuit is physically integrated into a resonator-type antenna filter (RXF). This takes place by placing some conductors (332, 333) of the divider inside some conductive part of the filter structure or the resonator cavity and by using the coupling conductor (331) of the output resonator as part of the input line of the divider at the same time. As the divider is used a Wilkinson divider. Due to the arrangement, a transmission line between the antenna filter and the divider becomes unnecessary, and the dielectric losses of the divider are reduced as compared to the prior art, in which case correspondingly inferior noise qualities can be allowed for low-noise amplifiers.

Abstract: A wireless computer mouse receiver (1) having an exterior body (2) of sufficient predetermined vertical height to improve line-of-sight reception from a wireless mouse (5). Preferably the exterior body (2) would replicate the original World Trade Center prior to the terrorist attacks on Sep. 11, 2001 with a north tower (14) and a south tower (15). The wireless computer mouse receiver (1) is used in conjunction with a wireless mouse (5) capable of transmitting at least one signal (10), which may be radio frequency, laser or other types of signals (10). A means for receiving the signal (8) from the wireless mouse (5) is located on the wireless computer mouse receiver (1).

Abstract: A charge accumulation circuit having a structure in which a capacitor is divided into a plurality of pieces and the divided capacitors are connected in parallel through switches is provided. The charge accumulation circuit controls the switch provided between the capacitors and thus can dynamically vary electrostatic capacitance of the charge accumulation circuit which applies a voltage to a constant voltage circuit.

Abstract: An aviation radio frequency receiver front end (502) and a corresponding antenna (501) are coupled together. The antenna is configured and arranged to be disposed during use in a fixed position proximal to an exterior surface of the aircraft fuselage. By one approach the antenna and the aviation radio frequency receiver front end are disposed in close physical proximity to one another. This can comprise, for example, having these elements comprise a single integrated physical structure. This can also comprise, where desired, disposing a corresponding aviation radio frequency receiver back end in close proximity to such components.

Abstract: A method of transmitting uplink signals in a wireless communication system is disclosed. In the system, there is at least one mobile station (MS) which possesses at least three antennas. In operation, at least one signal is generated using a matrix which represents a combination of transmission signals for each antenna. Moreover, the uplink signals are transmitted using the at least one generated signal. Here, each MS has at least one antenna.

Abstract: A transceiver with interference signal rejection has a transmission path and a reception path. The transmission path is connected to a transmission amplifier whose output is coupled to an antenna. In addition, the antenna is also connected to the reception path. A compensating apparatus is provided which is coupled to an input of the reception path. The output of the transmission path and the input of the transmission amplifier also have an extraction element connected between them which is connected to an input of the compensating circuit. A signal component of a transmitted signal is extracted before amplification to an output level and is routed to the reception path via the compensating circuit such that this compensates for a crosstalk transmitted signal component.

Abstract: An electronic apparatus includes: a first molded body; a second molded body which composes housing with the first molded body; a first conductive pattern provided in the housing; a second conductive pattern provided on an outer surface of the housing; and a first conductive member. The first conductive member passes through a gap of a mating face between the first molded body and the second molded body. The first conductive member connects the first conductive pattern and the second conductive pattern.

Abstract: A method of enabling a communications receiver to verify an antenna weight previously signalled by the communications receiver to a base station, the method including the steps of: equalising (14) a channel estimate of a dedicated pilot channel by the complex conjugate of a channel estimate of a common pilot channel to form an estimate of the transmission weight used by the base station; and for each transmission slot, combining (20) a component of the transmission weight estimates for current and previous slots to form an optimised transmission weight estimate.

Abstract: A system for wireless communication, particularly for receiving communication signals, said system comprising: A main antenna structure (330), said antenna structure adapted to receive a communication signal (325a) as a first internal signal; and an antenna cable, said antenna cable having a first end operationally coupled to said main antenna structure and a second end, said antenna cable including a main conductor (335) for passing said first internal signal, and a second receiving conductor (340), said second receiving conductor adapted to receive said communication signal as a second internal signal, and wherein said second receiving conductor as a receiving element is spatially separated from the main antenna structure. The disclosed antenna system and apparatus for the extraction of the second, spatially-separated received signal achieves spatial diversity to alleviate multipath effects in wireless communication systems.