Abstract: A high power RF energy device component is disclosed that is exposed to high power RF energy in a vacuum environment, and includes a multipactor-inhibiting carbon nanofilm covering at least one surface of the component. A secondary electron emission (SEE) coefficient of the multipactor inhibiting carbon nanofilm is desirably less than a SEE coefficient of the underlying surface of the component.

Abstract: An acoustic wave device comprises a substrate and an acoustic wave element on one main surface of the substrate. Side surfaces of the substrate comprises a protruding portion which protrudes out at a side of an another main surface closer than a side with the one main surface side.

Abstract: On-chip, high performance, slow-wave coplanar waveguide with through-silicon via structures, method of manufacture and design structures for integrated circuits are provided herein. The method includes forming at least one ground plane layer in a substrate and forming a signal layer in the substrate, in a same plane layer as the at least one ground. The method further includes forming at least one metal filled through-silicon via between the at least one ground plane layer and the signal layer.

Abstract: Provided is a printed circuit board configured to remove undesired signals generated in a transmission line, the signals having frequencies that are integral multiples of a basic frequency. Two ¼ wavelength lines 5 and 6 each having a length that is ¼ of a basic frequency corresponding to a data rate of coded digital signal are arranged at a signal wiring layer, which is one of surface layers of a substrate 8, along a transmission line 3 for transmitting the digital signal. One end 15a of the first ¼ wavelength line 5 is opened, and another end 15b is grounded to a ground 7. Both ends 16a and 16b of the second ¼ wavelength line 6 are opened.

Abstract: A signal transmission device includes: a transmitting device that transmits a transmission subject signal through a first waveguide as a wireless signal; and a receiving device that receives the wireless signal of the transmission subject signal transmitted from the transmitting device through a second waveguide, wherein the wireless signal is transmitted between the transmitting device and the receiving device in a state where the first waveguide faces the second waveguide.

Abstract: A microwave pulse power switching system includes a waveguide switching section having stacked reduced height waveguides, wherein microwave pulse power introduced into a first port of the waveguide switching section is divided between and propagates through the stacked reduced height waveguides. At least one and preferably both of the stacked reduced height waveguides of said waveguide switching section are loaded with a non-reciprocal ferrite material. A magnetic field switching circuit, which can include electromagnets and a bifurcating web plate of the waveguide switching section, produces a switchable static magnetic field in the ferrite loaded reduced height waveguides. Actuation of the magnetic field switching circuit will cause pulse power that emerges from the second port of the waveguide switching section to be changed or “switched” relative to the pulse power introduced into the first port of the waveguide switching section.

Abstract: The present disclosure relates to a hybrid transformer duplexer apparatus. The hybrid transformer duplexer apparatus includes an autotransformer having a first port, a second port and a tap coupled to a first antenna port. A step-down transformer has a primary winding with a first terminal coupled to the first port of the autotransformer and a second terminal coupled to the second port of the autotransformer, and a secondary winding having a third terminal coupled to a second antenna port and a fourth terminal coupled to a common node.

Abstract: A laminated electronic device comprises two or more wiring layers including a first wiring layer and a second wiring layer, an insulating layer interposed between the first wiring layer and second wiring layer, and a through conductor extending through the insulating layer for electrically connecting a first conductor disposed on the first wiring layer to a second conductor disposed on the second wiring layer. The through conductor includes divergent sections at both ends, which have a diameter gradually increased toward the first conductor or second conductor.

Abstract: A high-Q factor resonator comprises a solenoid having an embedded capacitor assembled in a machineable high-frequency dielectric printed circuit board (“PCB”), or other substrate. The solenoid comprises a plurality of surface conductors positioned on upper and lower surfaces of the PCB. The solenoid further comprises a plurality of conductive vias extending through the PCB between the surface conductors, and at least two aligned vias are separated by a capacitive gap. The device can therefore be described as a coupled circuit having a 1.5 or more turn inductor with an embedded capacitor along the length of the conductive path. Accordingly, a resonator having a high-Q factor is provided which is relatively inexpensive and easy to fabricate.

Abstract: A multiple conductor radio-frequency transmission line including a plurality of conductive traces, an input port, and at least one output port is disclosed. The input port includes a radio-frequency signal input line which is generally aligned with and disposed in a partially or completely overlapping relationship with the plurality of conductive traces at the input port, with the radio-frequency signal input line being at least as wide as the plurality of conductive traces at the input port. The output port includes a radio-frequency signal output line which is generally aligned with and disposed in a partially or completely overlapping relationship with at least one of the plurality of conductive traces at the at least one output port, with the radio-frequency signal output line being at least as wide as the at least one of the plurality of conductive traces at the output port.

Abstract: A multi-cavity RF filter has at least one electrically conductive coupling probe disposed between two resonator cavities. The coupling probe is provided with an ESD protective arrangement such that the coupling probe is electrically connected to a metallic housing of the RF filter only by the ESD protective arrangement. The ESD protective arrangement is configured to provide (i) a low resistance electrical path from the coupling probe to the metallic housing and (ii) a high impedance to RF energy having wavelengths proximate to a center frequency wavelength of the RF filter.

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: 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: 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: 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: 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: An integrated cavity filter/antenna system includes a substrate, a cavity filter formed in or on the substrate. A first cavity resonator is in or on the substrate that is enclosed by metal walls. At least a second cavity resonator is formed in or on the substrate that is enclosed by metal walls. An inter-resonator coupling structure couples energy between the first cavity resonator and the second cavity resonator. An antenna is integrated with one of the cavity resonators so that the antenna acts as both a port of the cavity filter and as a radiating element for the filter/antenna system. A connector is coupled to one of the cavity resonators for coupling energy into the filter/antenna system.

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.