Abstract: Systems and methods for a waveguide circulator with tapered matching component are provided. In certain embodiments, a waveguide structure comprises a plurality of waveguide arms; an internal cavity; a plurality of tapered matching components, wherein each tapered matching component in the plurality of tapered matching components has a narrow taper end that is connected to the internal cavity and a wide taper end that is connected to a waveguide arm in the plurality of waveguide arms, wherein the narrow taper end is narrower than the wide taper end; and a ferrite element having ferrite element segments disposed in the internal cavity, wherein a segment extends through the narrow taper end and the narrow taper end of the tapered matching component is narrower than the wide taper end such that a magnitude of impedance difference between each waveguide arm and the internal cavity containing the ferrite element is reduced.

Abstract: A dynamic range compression circuit includes an attenuator that attenuates a signal at a predetermined node in an amplifier to reduce a gain of the amplifier and a gain controller that reduces the gain of the amplifier by the attenuator so that an amplitude of an output signal of the amplifier becomes an arbitrary output limit voltage in a case where an input signal having the same amplitude as that of an input-stage maximum voltage of the amplifier is input into the amplifier, and increases the gain of the amplifier by reducing a degree of attenuation of the attenuator according to a decrease of the amplitude of the input signal of the amplifier from the input-stage maximum voltage in a case where the amplitude of the input signal of the amplifier is smaller than the input-stage maximum voltage.

Abstract: An embodiment relates to a coplanar waveguide electronic device comprising a substrate whereon is mounted a signal ribbon and at least a ground plane. The signal ribbon comprises a plurality of signal lines of a same level of metallization electrically connected together, and the ground plane is made of an electrically conducting material and comprises a plurality of holes.

Abstract: A resonator comprising a resonator body and actuation electrodes for driving the resonator into a resonant mode, in which the resonator body vibrates parallel to a first axis. The resonator comprises means to apply a voltage to the resonator in a direction perpendicular to the first axis direction. This serves to shift the frequency of resonant modes other than the principal resonant mode, and this allows increased amplitude of output signal from the resonator.

Abstract: An equalizer for compensating an input signal in a receiver of a communication system is disclosed. The equalizer includes a first transistor, having a gate for receiving a positive input voltage of the input signal; a second transistor, having a gate for receiving a negative input voltage of the input signal, and a source coupled to a source of the first transistor; and a resistor, connected with at least one capacitor to be coupled between a drain of the first transistor and a drain of the second transistor, for optimizing a resistance of the resistor, to compensate the input signal.

Abstract: As relates to the automatic impedance matching of a radiofrequency system, a system comprises three modules. In a matching phase a matching computation module is connected in a detachable manner between an amplification module and an antenna module containing an antenna, a matching impedances network, and memory means for storing control data of the network; then a matching computation is carried out; the computation module supplies control data of the network to the memory device. In a phase of using the system, the second module is removed and the antenna module is connected in a detachable manner directly to the amplification module, the matching network being controlled by the stored control data, which correspond to the desired impedance matching.

Abstract: A calibration and impedance synthesis method applies to automatic multi frequency-range electro-mechanical impedance tuner which cover frequencies from a low megahertz to a high gigahertz range; this is possible by cascading a high frequency tuner module with one or two low frequency tuner modules; the low frequency module(s) are made using either “variable phase shifter-capacitor” or “multi-capacitor-transmission line tuner” structures. The high frequency module is a single, double or triple probe slide screw tuner, with the individual probes covering adjacent frequency bands. Calibration is measuring S-parameters of each tuner module on a VNA, cascading in memory and saving in cal-files. Tuning employs search routines in calibration data base targeting the closest calibrated point versus a user defined impedance.

Abstract: An embodiment of the present disclosure provides an impedance matching circuit including a matching network. The matching network includes a first port and a second port, and one or more variable reactance components. The one or more variable reactance components are operable to receive one or more variable voltage signals to cause the one or more variable reactance components to change an impedance of the matching network. At least one of the one or more variable reactance components includes a first conductor coupled to one of the first port or the second port of the matching network, a second conductor, and a tunable material positioned between the first conductor and the second conductor. Additionally, at least one of the first conductor and the second conductor are adapted to receive the one or more variable voltage signals to cause the change in the impedance of the matching network. Additional embodiments are disclosed.

Abstract: A device includes a matching stage coupled between a first signal terminal and a second signal terminal. A signal path extends between the first signal terminal and the second terminal. An adjustable impedance element is connected to the signal path. A detection circuit is coupled to the signal path and configured to derive matching information. A control circuit is coupled between the detection circuit and the adjustable impedance element. The control circuit is configured to control the adjustable impedance element.

Abstract: An apparatus, system and method are described for impedance matching between a semiconductor package and a load on a board. In one embodiment of the present invention, a package trace is provided with an array of stubs that is designed to provide capacitance to the trace in order to more effectively match a wirebond. This improved match results in improvements in return loss, especially in higher speed applications such as broadband. Design parameters such as the width and length of each stub, and the spacing between the stubs may be varied depending on the impedance requirements of the trace.

Abstract: An electronic circuit arranged to terminate automatically a plurality of conductors at or near a node of a network comprising: a first input terminal electrically coupled to a first output terminal; a second input terminal electrically coupled to a second output terminal; selectable current limiting means (SCLM) arranged to limit an amount of current that may flow between the second output terminal and the second input terminal; and detecting means arranged to control switching means operable to switch the circuit between a first and a second condition responsive to the electrical potential Vx of the second output terminal, wherein in the first condition the circuit is a terminating circuit and the SCLM is selected to have a first current limit, and in the second condition the circuit is a continuing circuit and the SCLM is selected to have a second current limit.

Abstract: A substantially loop-shaped inductor including a via electrode is arranged such that its loop surface is parallel to a mounting board. Thus, a direction of magnetic flux of the inductor is perpendicular to the mounting board, and influence of the magnetic flux on an adjacent electronic component is significantly reduced and minimized. In addition, the via electrode defines a principal portion of the inductor. Thus, an inductor with a great Q value is obtained, and the insertion loss of a laminated LC filter is significantly reduced and minimized.

Abstract: A ferrite element for a switchable circulator comprises a first segment extending in a first direction from a center portion of the ferrite element; a second segment extending in a second direction from the center portion of the ferrite element; and a third segment extending in a third direction from the center portion of the ferrite element. Each of the first segment, the second segment, and the third segment include a first channel located at a first distance from a center point of the ferrite element. The first distance defines a first resonant section of the ferrite element. Each of the first segment, the second segment, and the third segment also include a second channel located at a second distance from the center point. The second distance defines a second resonant section of the ferrite element.

Abstract: The present invention intends to provide a small-sized impedance matching device with a small variation in quality and large-current tolerance. The above described intention of the present invention is achieved by an impedance matching device, which comprises a wiring portion comprising a conductor pattern for wiring, embedded inside or formed on the surface of first dielectric material, and either one or both of an inductor portion comprising a conductor pattern for inductor, embedded inside or formed on the surface of the first dielectric material, or a capacitor portion comprising at least one pair of conductor patterns for capacitor and second dielectric material with a dielectric constant larger than that of the first dielectric material, existing between the pair of conductor patterns for capacitor wherein the thicknesses of the conductor pattern for wiring and the conductor pattern for inductor are 20 ?m or more.

Abstract: This invention provides a digital electronic device comprising: a grounded metal portion comprising a first metal plate electrically connected to ground and a first substrate disposed on the first metal plate; at least one layer of differential-mode reference metal portion comprising a second substrate and a second metal plate electrically connected to the first metal plate by at least one conductive structure; a pair of differential signal lines at least partially disposed on the second substrate of the at least one layer of differential-mode reference metal portion and electromagnetically coupled to the second metal plate of the at least one layer of differential-mode reference metal portion; and an equalizer electrically connected to the pair of differential signal lines.

Abstract: In a filter module having excellent phase balance characteristics, a length of a signal path between a first balanced mount electrode and a first balanced terminal electrode is different from a length of a signal path between a second balanced mount electrode and a second balanced terminal electrode. When viewing a mount board from a side on which a filter component is mounted, an area along which the first balanced mount electrode and a first internal ground electrode oppose each other is different from an area along which the second balanced mount electrode and the first internal ground electrode oppose each other.

Abstract: An equalizer includes a circuit board and a compensation module. The compensation module includes first and second transmission lines, first to fourth resistors, and first to fourth micro-strips. Four vias extend through the circuit board and are grounded. First terminals of the four resistors are grounded through the vias. A second terminal of a first resistor is connected to a second terminal of the second resistor through the first micro-strip, and is connected to the first transmission line through the second micro-strip. A second terminal of the third resistor is connected to the second transmission line through the third micro-strip, and is connected to a second terminal of the fourth resistor through the fourth micro-strip. A length of the first micro-strip is equal to a length of the fourth micro-strip. A length of the second micro-strip is equal to a length of the third micro-strip.

Abstract: An adjustable impedance matching network for providing an adjustable matching impedance (Rm) is presented. The matching network includes first and second impedance adjusting circuits. The first impedance adjusting circuit is adapted to adjust the value of an imaginary part of the matching impedance while substantially maintaining the value of a real part of the matching impedance based on frequency information frequency and a target reference value. The second impedance adjusting circuit is adapted to adjust the value of an imaginary part of the matching impedance to be substantially equal to zero based on the frequency information, so as to adjust the real part of the matching impedance to be substantially equal to the target reference value.

Abstract: Systems and methods for an electric choke are provided. The choke may be provided as part of a power transmission arrangement that includes a cable for electrically coupling a power source and a powered device having a ground node and a wire separate from the cable providing a path for a common-mode current through the ground node. The power transmission arrangement also includes an unbalanced choke coupled between the power source and the powered device, wherein a number of turns of the cable in the choke is different than a number of turns of the wire in the choke.

Abstract: Systems and methods for a stacked waveguide circulator are described. The stacked waveguide circulator may comprise a first side and a second side. The stacked waveguide circulator may also comprise a top and a bottom opposite the top. The top and the bottom may be adjacent to the first and second sides. The stacked waveguide circulator may also comprise a a first port and a second port on the first side. The first port may be vertically above the second port on the first side. Further, the stacked waveguide circulator may comprise a third port on the second side. The stacked waveguide circulator may comprise a first magnet on the top. The first magnet may be configured to assist in directing signals between the first, second, and third ports.