Abstract: A printed circuit board includes signal transmitting units that transmit signals, signal receiving units that receive signals, and a plurality of signal lines that connect the signal transmitting units and the signal receiving units. A resistor having a value Rp [?] of resistance with a first tolerance is provided between two signal lines that are adjacent to each other. In addition, a capacitor element that is connected in series to the resistor and that has a value Cp [F] of capacitance with a second tolerance is also connected between the two signal lines. In relation to the rise time tr [s] of the signals output from the signal transmitting units, the value Rp of resistance of the resistor and the value Cp of capacitance of the capacitor element are set such that an expression (Cp×Rp)×0.9?tr/3?(Cp×Rp)×1.1 is satisfied.

Abstract: Radio frequency subscriber drop units include a housing having an input port and an output port and a printed circuit board mounted in an interior of the housing. The printed circuit board includes a dielectric layer, a wiring layer that includes conductive wirings that comprise at least part of a communications path between the input port and the output port that is on a first face of the dielectric layer, and a ground plane layer that includes a conductive ground plane that is on a second face of the dielectric layer.

Abstract: A high frequency switch device includes a branch transmission line corresponding to each output terminal provided with a switching part. In the branch transmission line, the switching part includes a transmission side diode provided in such a manner that a cathode thereof is arranged on a side of an input terminal 41 and an anode thereof is arranged on a side of the output terminal, and a ground side diode provided in such a manner that a cathode thereof is grounded and an anode thereof is electrically connected between the output terminal and the transmission side diode in the branch transmission line. The branch transmission line includes a first capacitor and a second capacitor on the side of the output terminal from the transmission side diode in such a manner that the anode of the ground side diode is connected between the first capacitor and the second capacitor.

Abstract: A monolithic power splitter is used to split a pair of input differential signals into two pairs of output differential signals in the present invention. The monolithic power splitter has two input terminals to receive a pair of input differential signals, and it has two one-by-two power splitters integrated in one single chip to split a pair of input differential signals into two pairs of output differential signals with equal power. And, the monolithic power splitter has four output terminals to output two pairs of output differential signals. In one embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on the same surface of the substrate. In another embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on opposite surfaces of the substrate. The monolithic power splitter can be used as a power combiner based on the reciprocal property of the power splitter circuit.

Abstract: An M-way coupler having a first port, M second ports, M transmission line sections, M isolation resistors and a phase shifting network is disclosed, where M is an integer number greater than 1. The M transmission line sections couple the first port to the M second ports, respectively. Each of the M isolation resistors has a first terminal and a second terminal. The first terminals of the M isolation resistors are coupled to the M second ports, respectively. The phase shifting network has M I/O terminals coupled to the second terminals of the M isolation resistors, respectively. The phase shifting network is arranged to provide a phase shift within a predetermined tolerance margin between arbitrary two I/O terminals of the M I/O terminals of the phase shifting network.

Abstract: A face plate for cable-TV networks, the face plate adapted to operate in frequencies as high as 1.8 GHz. The face plate comprising terminals, electronic circuitry, impedance matching units and a disturbances suppressor. The disturbances suppressor is designed to suppress the parasitic resonance of the transmission line that appears inside the extended operational frequency band of 1000 to 1800 MHz. The impedance matching units are adapted to match the impedance of the terminal with that of electronic circuitry.

Abstract: A control method is proposed that controls inter-component phase difference solitons by using splitting or fusion caused by the interaction between inter-component phase difference solitons themselves, without the need for application of external energy.

Abstract: Various embodiments are directed toward systems and method for manufacturing low cost passive waveguide components. For example, various embodiments relate to low cost manufacturing of passive waveguide components, including without limitation, waveguide filters, waveguide diplexers, waveguide multiplexers, waveguide bends, waveguide transitions, waveguide spacers, and antenna adapters. Some embodiments comprise manufacturing a passive waveguide component by creating a non-conductive structure using a low cost fabrication technology, such as injection molding or three-dimensional (3D) printing, and then forming a conductive layer over the non-conductive structure such that the conductive layer creates an electrical feature of the passive waveguide component.

Abstract: A monolithic power splitter is used to split a pair of input differential signals into two pairs of output differential signals in the present invention. The monolithic power splitter has two input terminals to receive a pair of input differential signals, and it has two one-by-two power splitters integrated in one single chip to split a pair of input differential signals into two pairs of output differential signals with equal power. And, the monolithic power splitter has four output terminals to output two pairs of output differential signals. In one embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on the same surface of the substrate. In another embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on opposite surfaces of the substrate. The monolithic power splitter can be used as a power combiner based on the reciprocal property of the power splitter circuit.

Abstract: An electrical signal combiner includes at least one first element and a second element respectively connected to a first input port and to a second input port, and a third element connected to an output port, the electrical signals being propagated between the input and output ports. The combiner includes a medium; and the first, second and third elements are acoustic wave transducers, the electrical signals being carried by acoustic waves propagated between the input and output ports within the medium.

Abstract: A four port antenna decoupling network which has only two negative capacitors and four or more positive capacitors and a method of improving low frequency receiving performance of two element and four element antenna arrays using one or more wideband decoupling circuits wherein each of said wideband decoupling circuits contain a maximum of two non-Foster components, the two non-Foster components preferably simulating negative capacitors.

Abstract: An RF transmission line device with high performance, wide band characteristics includes an inner conductor for transmitting communication signals of a desired frequency band and a grounded outer conductor electrically insulated from the inner conductor by at least one dielectric material. A tap conductor is connected to the inner conductor and serves as an auxiliary path through which signals outside the desired frequency band can be externally injected into and/or retrieved from the through RF path, the tap conductor extending longitudinally through a tap housing conductively coupled to the outer conductor. As a feature of the invention, a modular attachment is removably coupled to the tap housing and includes a plurality of voltage suppression components that are arranged in the conductive path between the tap conductor and the tap housing, the voltage suppression components discharging transient voltages diverted from the inner conductor by the tap conductor.

Abstract: The present invention provides an adjustable radio frequency (“RF”) impedance method. Embodiments of the invention provide voltage adjustable RF impedance termination methods.

Abstract: A real-time management networking system for a manufacturing environment, e.g., chemical, assembly, automobile, electronic, petroleum. In a specific embodiment, the system has a spatial region, which is adapted for one or more manufacturing equipment devices. The one or more manufacturing equipment devices is associated with a manufacture of a product. In a specific embodiment, the manufacturing equipment is able to generate a high frequency noise, which causes interference with a conventional data signal, which is often unshielded. In a specific embodiment, the system has a power line gateway device provided within a desired region of the spatial region.

Abstract: A multichannel splitter formed from 1 to 2 splitters. An input terminal of a first 1 to 2 splitter defines an input of the multichannel splitter. The 1 to 2 splitters are electrically series-connected. First respective outputs of the 1 to 2 splitters define output terminals of the multichannel splitter.

Abstract: There is described a power splitter for directing electromagnetic power comprising: an input port for receiving the electromagnetic power; at least one dielectric element placed inside the power splitter; at least two output ports for outputting the power according to a splitting ratio, the at least two output ports placed on a surface opposite to the input port; and at least one dielectric moving device for positioning the at least one dielectric element between the at least two output ports to dynamically direct the power into the at least two output ports according to the power splitting ratio.

Abstract: Aspects describe a wideband active quasi-circulator that has the advantages of small size, lightweight, and compatibility with monolithic microwave integrated circuit (MMIC) technology. An active quasi-circulator is provided that comprises both a power amplifier and a low noise amplifier. The active quasi-circulator can operate over a wide frequency range with isolation or substantial isolation between a power amplifier and a low noise amplifier that is tunable with isolation or substantial isolation at any frequency within the wide frequency range. The provided quasi-circulator is suitable for use in mobile units in multi-band radio frequency communication systems, as well as in other configurations.

Abstract: Signals sent between a first device and a second device are split. A first user adjustable input signal equalization and gain compensates for losses to signals from the first device before the compensated signals are forwarded to the second device, a first analytic instrument and a second analytic instrument. A second user adjustable input signal equalization and gain compensates for losses to signals from the second device before the first compensated signals are forwarded to the first device, the first analytic instrument and the second analytic instrument.

Abstract: A network signal coupling and EMI protection circuit assembly includes a processing circuit installed in a circuit board and coupled between a voltage-mode network-on-chip at the circuit board and a network connector and drivable by a driving voltage outputted by the voltage-mode network-on-chip to process network signals. The processing circuit includes opposing first connection end and second connection end, two-wire channels electrically connected between the first connection end and the second connection end, a coupling module and an EMI protection module installed in each two-wire channel for coupling network signals and removing noises.

Abstract: Disclosed is a signal splitter that includes a coupled transmission line element coupled between two output ports of the signal splitter. The coupled transmission line element is used to lower the isolation between the two output ports for a particular frequency band. The coupled transmission line element includes a first and a second elongate electrical conductor. The first and the second elongate electrical conductor first ends are coupled to the signal transmission path that connects the two output ports. The first and the second elongate electrical conductor second ends are un-terminated. The first elongate electrical conductor and the second elongate electrical conductor are not shorted together, and the first elongate electrical conductor and the second elongate electrical conductor are electrostatically coupled, such as by twisting them together into a helix.

Abstract: A signal transmitting device and a method for transmitting via a signal transmitting device is disclosed. In one embodiment the transmitting device comprises a first resonant circuit with a resonant circuit inductance and a resonant circuit capacitance and a second resonant circuit with a resonant circuit inductance and a resonant circuit capacitance, a coupling element which couples the first resonant circuit to the second resonant circuit, a first excitation circuit, coupled to the first resonant circuit, and at least one further excitation circuit coupled to the second resonant circuit.

Abstract: The embodiment of the present disclosure discloses a power division network device, which comprises a shielding house and a circuit board. Two opposite surface layers of the circuit board are respectively provided with a signal transmission line and a coupling line. The signal transmission line and the coupling line are suspended in the shielding house. The coupling line comprises a coupling area, and a load interface and an output signal interface connected at the two ends of the coupling area. The projection of the coupling area on the surface layer where the signal transmission line is located falls onto the signal transmission line and forms thereon a projection area. The length of the projection area in the longitudinal direction of the signal transmission line is one quarter wavelength. Broadside coupling by way of making the projection of the coupling line fall onto the signal transmission line can realize the allocation and sampling of the signals transmitted in the signal transmission line.

Abstract: The present invention is directed to a coupling apparatus for dividing a radio frequency (RE) transmitting signal and an RF receiving signal in a transceiver with a transmitting unit and a receiving unit sharing an antenna, comprising: a four-port circuit having ports 1-4; a through path formed between the port 1 and the port 2; a first signal input to the port 1 being coupled to the port 4.1; a second signal input to the port 2 being coupled to the port 3; an isolation path formed between the port 1 and the port 3 and between the port 2 and the port 4; an attenuator attenuating a signal output from the port 4; and wherein the RF transmitting signal is input to the port 1, the RF receiving signal is input to the port 2, and outputs of the port 3 are provided to the receiving unit.

Abstract: Embodiments of a device include a receive multi-rate CDR unit communicatively coupled to a processor, the receive multi-rate CDR configured to receive signals from a cable and perform clock and data recovery on signals and a transmitter multi-rate CDR unit communicatively coupled to a processor, the transmit multi-rate CDR configured to send signals to the cable after performing clock and data recovery on the signals. Embodiments of the cable include a receiver equalizer configured to receive signals from a wire and a transmitter equalizer configured to receive signals from a connector of the cable and configured to transmit an equalized signal to the wire.

Abstract: A differential cross-coupled power combiner in one aspect comprises a plurality of inputs, an output, a plurality of differential transmission lines each coupled between a corresponding one of the inputs and the output, and at least one set of additional differential transmission lines arranged in series between any two of the inputs. First and second ones of the additional differential transmission lines in the set are coupled to one another using a cross-coupling arrangement. Other aspects of the invention provide a differential cross-coupled power divider, communication system receivers and transmitters incorporating respective power combiners and dividers, and integrated circuit implementations of power combiners and dividers.

Abstract: A signal splitter for creating at least two symmetrical equal-power signals from an input signal for use in an amplifier device includes at least one input terminal pair and at least two output terminal pairs. A primary conductor structure supplied from the at least one input terminal pair is provided for induction of a current flow in at least two secondary conductor structures each connected to an output terminal pair of the at least two output terminal pairs and the at least two secondary conductor structures. A center of a conductor length of each of the at least two secondary conductor structures is connected to ground, and the primary conductor structure and the at least two secondary conductor structures are realized as conductor tracks applied to a printed circuit board.

Abstract: An imbalance compensator includes a phase/filter mismatch correction circuit and a gain mismatch correction circuit. The phase/filter mismatch correction circuit includes an adjustable filter and a processing unit. The adjustable filter is arranged for adjusting a filter coefficient setting according to a first input signal of a first signal branch and a second input signal of a second signal branch, and generating a first compensated signal to the first signal branch according to the filter coefficient setting and the first input signal. The processing unit is arranged for processing the second input signal according to the first compensated signal and generating a second compensated signal to the second signal branch. The gain mismatch correction circuit is arranged for referring to the first and second compensated signals to configure gain compensation, and applying the configured gain compensation to one of the first and second compensated signals.

Abstract: In a conventional Bagley polygon power divider of a planar configuration, a length of transmission lines from an input port to output ports adjacent thereto on both sides is determined to be a quarter wavelength and a geometry thereof is an odd regular polygon with each side being a length equal to half of a wavelength at a designed frequency, which is large in size. Since the output ports are located at vertices of the regular polygon, inconvenience can be caused, e.g., in arrangement of the output ports. The present invention is directed to a design wherein only a characteristic impedance of a transmission line is designated for achieving matching and wherein a length of the line is allowed to be arbitrarily selected. This permits the line length between adjacent output ports to be appropriately adjusted to a short one according to a design object, and also enables fabrication of a power divider in which output ports are aligned in a line.

Abstract: The disclosure provides an antenna feeding structure having a low frequency loop, an intermediate frequency loop, and a high frequency loop, and generates resonance between the inductance of the intermediate frequency loop itself and a capacitive element in the intermediate frequency loop, wherein the antenna feeding structure is configured to be able to adjust the resonance frequency using the area of the loop and the value of the capacitive element, thereby allowing the antenna to have a broadband characteristic, and further, making it possible to easily design an antenna having a desired band.

Abstract: Implementations and examples of power amplifier devices, systems and techniques for amplifying RF signals, including power amplifier systems based on Composite Right and Left Handed (CRLH) metamaterial (MTM) structures.

Abstract: An antenna for transmitting and/or receiving-electromagnetic waves has a flat ground plane, and an array of radiating and/or receiving elements. The radiating and/or receiving element comprises a planar conductor which is arranged in parallel to the ground plane. An L-shaped slot is arranged in the planar conductor.

Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas though a passive coupler. When transmitting signals, the passive coupler can divide transmitted signals between each of the multiple antennas. When using the antennas to receive signals, the received signals can be combined using the passive coupler. The combined signals may be provided to a receiver in the transceiver circuitry. A tap may be interposed in a path between the passive coupler and one of the antennas to monitor radio-frequency signal power. Phase-shift elements may be interposed in the paths between the antennas and the passive coupler to adjust the relative phase between signals associated with the first and second antennas.

Abstract: An N-way multi-layer radial power combiner/divider comprises an RF layer including N planar RF transmission lines radiating from a common port to N ports. An isolation layer substantially parallel to the RF layer comprises a star resistor having N resistive arms radiating from a common junction and N planar isolation transmission lines coupled in series to respective resistive arms. Each series pair of a resistive arm and an isolation transmission line is ideally a half-wavelength in electrical length. N vertical interconnects between the RF layer and the isolation layer connect the ends of the N isolation transmission lines to the ends of the N RF transmission lines at the N individual ports, respectively. Any path from one individual port through the common junction of the star resistor to another individual port is approximately a full wavelength ?c or multiple thereof so that the phase angle through the isolation network is approximately zero degrees.

Abstract: A monolithic power splitter is used to split a pair of input differential signals into two pairs of output differential signals in the present invention. The monolithic power splitter has two input terminals to receive a pair of input differential signals, and it has two one-by-two power splitters integrated in one single chip to split a pair of input differential signals into two pairs of output differential signals with equal power. And, the monolithic power splitter has four output terminals to output two pairs of output differential signals. In one embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on the same surface of the substrate. In another embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on opposite surfaces of the substrate. The monolithic power splitter can be used as a power combiner based on the reciprocal property of the power splitter circuit.

Abstract: Methods and apparatuses for determining uplink receive signal path characteristics in a wireless communication system are disclosed. In one embodiment, a tower-top noise source (TTNS) is provided such that it is permanently affixed in close proximity to a receive antenna. The TTNS preferably has an output that includes a wideband noise signal having predetermined characteristics. The TTNS output is selectively connected to a receive signal path that includes a tower-top low-noise amplifier (TTLNA). An altered version of the wideband noise signal is received at the output of the receive signal path, and a characteristic of the altered wideband noise signal is measured.

Abstract: A magnetic resonance isolator includes a ferrite member, a junction conductor that is arranged on the ferrite member and that includes a first port, a second port, and a third port, a permanent magnet that applies a direct current magnetic field to the ferrite member, a capacitor as a reactance element, and a mounting substrate. A main line arranged between the first port and the second port does not resonate, and an end of a sub-line branching from the main line defines the third port. The capacitor is connected to the third port and to the ground. The phase of a wave reflected from the sub-line is adjusted so as to be shifted by about 90 degrees at the intersection of the junction conductor.

Abstract: A cable strand for the activation of electrically actuatable injection valves of internal combustion engines having a common-rail injection system, wherein the cable strand connects an engine control device with the injection valves. Electrical cables of the cable strand are molded and/or foamed in a carrier that largely prescribes the shape of the cable strand. At least one filter is also molded and/or foamed in the cable strand and is adapted to affect the electromagnetic compatibility of the cable strand arrangement.

Abstract: A circuit arrangement includes a component having a closed signal path, that closed signal path connected to a first port, a second port and at least a third port. The component has a directed signal flow of a signal applied to one of that ports. Such a coupling device can be connected to a transmitter and to a receiver path, respectively.

Abstract: A high-frequency signal combiner includes a first input terminal for the connection of a first high-frequency signal, a second input terminal for the connection of a second high-frequency signal, an output terminal for the output of the third high-frequency signal combined from the first and the second high-frequency signal. A first coaxial line extends between the first input terminal and the output terminal. A second coaxial line extends between the second input terminal and the output terminal. Furthermore, an annular core is provided, through the recess of which the first and second coaxial line are guided each in a different direction. The annular core is manufactured from an axially wound strip which includes a first layer made of a magnetizable material and a second layer made of an insulating material.

Abstract: A high and low speed serial interface multiplexing circuit includes a low speed transceiver, a high speed transceiver, an inductor coupled to a communication interface port of the low speed transceiver, a capacitor coupled to a communication interface port of the high speed transceiver, and a transformer coupled to the communication interface port of the high speed transceiver.

Abstract: A power synthesis circuit for a radio frequency (RF) power amplifier comprises a first matching network and a second matching network, which are connected with two-band signal output ports of the RF power amplifier respectively, and signal coupling circuits which are connected with two-band signal receiving ports respectively. The first matching network and the second matching network are connected with an antenna circuit via a duplexer, and are grounded via an inductor and a switch element which is connected in parallel to the inductor respectively. The leakage of signal among different channels is prevented. The transmission quality of the RF signal is improved. The cost of the power amplifier is reduced and the structure of the power amplifier is simplified.

Abstract: The present invention provides a semiconductor device. In the semiconductor device, a signal distributor distributes a high frequency signal generated by an oscillator and inputted to an input part to first and second signals and outputs the same from first and second output parts respectively. A modulator modulates a baseband signal with the first signal and outputs the same therefrom. An offset adjustment unit compares the second signal and the first signal that leaks from the output of the modulator to thereby adjust an offset of the baseband signal. The signal distributor includes a first capacitive element provided between the input part and the first output part, and a second capacitive element provided between the first output part and the second output part. The electrostatic capacitance of the first capacitive element is larger than that of the second capacitive element.

Abstract: A bond wire transformer comprises a plurality of primary bond wires coupled in parallel; and a plurality of secondary bond wires coupled in parallel, each secondary bond wire being spaced apart from and oriented relative to a corresponding primary bond wire so as to achieve a desired mutual inductance between the corresponding primary and secondary bond wires, thereby providing magnetic coupling between the primary and secondary bond wires.

Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.

Abstract: A large scale integrated (LSI) circuit includes a first terminal, a second terminal, a transmitting circuit coupled to the first terminal and the second terminal, and a receiving circuit coupled to the first terminal and the second terminal. The first and second terminals are coupled to an external portion of the large scale integrated circuit. The external portion includes a first branching circuit, a second branching circuit coupled to the first branching circuit, and first and second antennas coupled to the second branching circuit.

Abstract: A switchable inductor-capacitor-inductor (L-C-L) network, which includes an integrated T/R switch, can advantageously bridge a PA and an LNA of a wireless device. The first inductor can function as an RF choke that provides power to the PA. In one embodiment, the first inductor can be advantageously implemented using the bond wires already attached to the PA, thereby requiring no additional inductors to provide the integrated T/R switch and minimizing use of valuable silicon area. The second inductor can function as a source inductor for and cancel an input parasitic capacitance of the LNA. A set of capacitors can act as blocking capacitors to provide DC isolation between the LNA and the PA, thereby protecting the LNA from high voltages. The L-C-L network can also advantageously function as an impedance matching network for at least one of the PA and the LNA.

Abstract: A high-frequency circuit comprising a high-frequency switch circuit for switching the three-way connection of an antenna to a transmitting circuit for the first communications system, a receiving circuit for a first communications system, and a transmitting/receiving circuit for a second communications system; a first bandpass filter disposed between the antenna and the high-frequency switch circuit; and a balanced-unbalanced conversion circuit disposed between the receiving circuit of the first communications system and the high-frequency switch circuit.

Abstract: This disclosure provides implementations of electromechanical systems resonator structures, devices, apparatus, systems, and related processes. In one aspect, a contour mode resonator device includes a first conductive layer with a plurality of first layer electrodes including a first electrode at which a first input signal can be provided and a second electrode at which a first output signal can be provided. A second conductive layer includes a plurality of second layer electrodes including a first electrode proximate the first electrode of the first conductive layer and a second electrode proximate the second electrode of the first conductive layer. A second signal can be provided at the first electrode or the second electrode of the second conductive layer to cooperate with the first input signal or the first output signal to define a differential signal. A piezoelectric layer is disposed between the first conductive layer and the second conductive layer.

Abstract: Radio frequency (“RF”) tap units are provided that include an RF input port, an RF output port that is coupled to the RF input port and a plurality of RF tap ports that are coupled to the RF input port. These tap units further include a burst mode detection circuit that is coupled between the RF input port and at least one of the plurality of RF tap ports.

Abstract: A mixer includes an adder that inputs a first high-frequency signal and a second high-frequency signal for local use, adds the first high-frequency signal and the second high-frequency signal, and outputs as an addition signal; a magnetoresistive effect element that includes a fixed magnetic layer, a free magnetic layer, and a non-magnetic spacer layer disposed between the fixed magnetic layer and the free magnetic layer, and is operable when the addition signal has been inputted, to multiply the first high-frequency signal and the second high-frequency signal included in the addition signal using a magnetoresistive effect to generate a multiplication signal; a magnetic field applying unit applying a magnetic field to the free magnetic layer; and a first impedance converting unit that is passive, inputs the multiplication signal outputted from the magnetoresistive effect element, converts the multiplication signal to a lower impedance than an input impedance, and outputs the converted signal.