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9124242 Filter, duplexer, communication module and communication device  
A filter includes a plurality of primary resonators connected to a serial arm, a plurality of secondary resonators connected to a parallel arm, a primary inductor connected to at least one of the...
9088263 Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus  
A surface acoustic wave (SAW) resonator and a SAW oscillator and an electronic apparatus including the resonator are to be provided. A SAW resonator includes: an IDT exciting a SAW using a quartz...
9070963 Duplexer  
A duplexer includes: a reception filter connected between a reception terminal and an antenna terminal; a transmission filter connected between a transmission terminal and the antenna terminal;...
9059681 Unbalanced-balanced conversion circuit element  
An unbalanced-balanced conversion circuit element includes an inductor connected in series between an unbalanced terminal and a first balanced terminal. The first balanced terminal side of the...
9059497 Variable filter and communication apparatus  
A variable filter includes, on a dielectric substrate including ground conductor, first resonator including a transmission line connected to input terminal, second resonator including a...
9041482 Attenuation reduction control structure for high-frequency signal transmission lines of flexible circuit board  
An attenuation reduction control structure for high-frequency signal transmission lines of a flexible circuit board includes an impedance control layer formed on a surface of a substrate. The...
9041495 Cavity filter with connecting structure connected between slider and driving device  
A cavity filter includes a slider, a driving device, and an adapter. The slider is used to slide relative to and couple with a plurality of resonators located in the cavity filter to adjust a...
9041492 Unreleased mems resonator and method of forming same  
A microelectromechanical (MEM) resonator includes a resonant cavity disposed in a first layer of a first solid material disposed on a substrate and a first plurality of reflectors disposed in the...
9041493 Coupling structure for multi-layered chip filter, and multi-layered chip filter with the structure  
A coupling structure for a multi-layered chip filter includes a resonator layer including a resonator pattern with spaced areas and a coupling layer including at least two separated overlap...
9041486 Ladder type surface acoustic wave filter and duplexer using same  
An object of the present invention is to improve the passing characteristic at high temperature in a ladder-type elastic wave filter and a duplexer including the filter. The ladder-type elastic...
9041611 Impedance matching method for a multiband antenna, and transmission or receiver channel having automatic matching  
An automatic antenna impedance matching method for a radiofrequency transmission circuit. An impedance matching network is inserted between an amplifier and an antenna. The output current and...
9041612 Localized wave generation via modal decomposition of a pulse by a wave launcher  
Implementations for exciting two or more modes via modal decomposition of a pulse by a wave launcher are generally disclosed.
9041463 Low noise amplifier for multiple channels  
An amplifier system has an amplifier for amplifying a plurality of input signals from a plurality of different channels, and a plurality of demodulators each operatively coupled with the amplifier...
9041481 Artificial microstructure and artificial electromagnetic material using the same  
The present invention provides an artificial microstructure employed in an artificial electromagnetic material. The artificial microstructure includes a first segment, a second segment, and a...
9041488 Adjustable waveguide busbar  
A waveguide busbar for conducting microwaves includes a group input for coupling in a group microwave signal, a plurality of filter inputs for coupling in a plurality of microwave signals, a dual...
9041483 Attenuator  
An attenuator includes, on a substrate: a resistor section; an insulating film covering the resistor section; and connection terminals covering the insulating film and connected in part to the...
9041498 Mechanically short multi-carriage tuner  
Mechanically short multi-carriage impedance tuners use meandering slabline structures. The meandering structure reduces the overall tuner length by a factor of 2.5 at 0.4 GHz. The critical issue...
9042847 Filter, receiver, transmitter and transceiver  
Embodiments of the present invention provide a filter, a receiver, a transmitter, and a transceiver. The filter includes a resonant cavity component, a microstrip filtering component, and two...
9042844 Transceiver and related switching method applied therein  
A transceiver includes: a power amplifying circuit arranged to generate differential output signals during a transmitting mode of the transceiver; a balance-unbalance circuit arranged to convert...
9041487 Surface acoustic wave filter and duplexer using same  
An SAW filter and a duplexer excellent in electrical characteristics will be provided. An SAW filter has a piezoelectric substrate 40, a surface acoustic wave element 10 having a first IDT...
9041491 Capacitive device and resonance circuit  
To provide a capacitive device capable of accurately securing a capacitance value, a variable capacitive device capable of sufficiently securing a capacity variability rate, and a resonance...
9041484 Method, system, and apparatus for resonator circuits and modulating resonators  
Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable...
9041480 Virtual RF sensor  
A radio frequency (RF) generation system includes an impedance determination module that receives an RF voltage and an RF current. The impedance determination module further determines an RF...
9041408 Removable surface-wave networks for in-situ material health monitoring  
A system for measuring properties of a surface under test with surface waves includes a surface wave network including a dielectric substrate, a reactive grid of a plurality of metallic patches on...
9041485 High frequency electronic component  
An electronic component includes: a first circuit connected to a first common terminal for inputting/outputting a first signal set, a second common terminal for inputting/outputting a second...
9041490 De-noise circuit and de-noise method for differential signals and chip for receiving differential signals  
A de-noise circuit and a de-noise method for differential signals and a chip for receiving differential signals are provided. The de-noise circuit includes a filter and a register. Both the filter...
9041245 Power supply apparatus and method to control the same  
A power supply apparatus includes a converter to convert AC power into DC power, an SMPS to convert the DC power into DC powers desired by loads, a capacitor to interconnect the converter and the...
9041497 Minimal intrusion very low insertion loss technique to insert a device to a semi-rigid coaxial transmission line  
A signal conditioning apparatus can include a coaxial cable having at least one slot formed therein. A conductive film can be applied to the coaxial cable so as to cover each slot. A device...
9041496 Adjustable resonator  
The adjustable resonator according to the invention has a casing, which is composed of walls, a lid and a bottom, a resonator cavity inside the casing and an internal conductor inside the...
9041489 Signal transmission cable and flexible printed board  
A signal transmission cable includes a multi-layer parallel transmission path, a single-layer parallel transmission path, and a single-layer/multi-layer conversion section. The multi-layer...
9035728 Electromagnetic interface secured by using an indirect compression force to slidably engage first and second force transfer features  
In an example embodiment, an electromagnetic interface can comprise: a first component comprising a first waveguide channel, a first interface surface, and a first force transfer feature; a second...
9035725 Acoustic wave device  
An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the piezoelectric substrate, a first dielectric film covering...
9035723 Filter for removing noise  
The present invention discloses a filter for removing noise, which includes: a lower magnetic substrate; a coil layer disposed on the lower magnetic substrate and including at least one conductor...
9035715 Compact broadband impedance transformer  
The present invention is directed to an impedance transformation device for use in a system having a characteristic system impedance, the device being characterized by a predetermined bandwidth...
9035727 Frequency-tunable filter  
A frequency tunable filter is disclosed. The frequency tunable filter includes a filter unit that can tune a frequency band of a frequency signal being filtered, a communication module that...
9035724 Multilayer band pass filter  
In a multilayer band pass filter, via-electrodes and strip electrodes define inductors of LC parallel resonators in four stages. A capacitor electrode and a ground electrode define a capacitor of...
9035722 Ladder filter, duplexer and module  
A ladder filter includes at least one series resonator connected in series between an input terminal and an output terminal, at least one parallel resonator connected in parallel with the at least...
9035714 Parasitic capacitance compensating transmission line  
A transmission line is provided in which a first portion of the transmission line is configured to be connected to a source, and a second portion of the transmission line is configured to be...
9035194 Circuit board with integrated passive devices  
Embodiments of the present disclosure are directed towards a circuit board having integrated passive devices such as inductors, capacitors, resistors and associated techniques and configurations....
9035717 Balun transformer  
A balun transformer includes an unbalanced terminal, two balanced terminals, a directional coupler, a low pass filter, and a high pass filter. The directional coupler includes first, second, third...
9035726 SAW filter circuit having improved ESD resistance  
A SAW filter circuit having improved ESD resistance is specified, in which a series interconnection composed of SAW resonators is interconnected between a first signal port and a dual-mode SAW...
RE45519 Quarter wave plate polarizer with two phase-shifting portions  
A right circular cylindrical body of an isotropic dielectric such as a cross-linked styrene copolymer, has respective pluralities of mutually parallel grooves formed in its axial end faces, spaced...
9035712 Resonance reducing circuit board  
A circuit card is provided that includes ground traces that extend from a resistor to a commoning bar, where a resultant electrical length between the resistor and the commoning bar and is...
9035721 Duplexer, communication module component, and communication device  
A duplexer has an antenna terminal, a first terminal, and second terminals and provided with a first filter arranged between the antenna terminal and first terminal and including a parallel...
9035719 Three dimensional branchline coupler using through silicon vias and design structures  
A three dimensional (3D) branchline coupler using through silicon vias (TSV), methods of manufacturing the same and design structures are disclosed. The method includes forming a first waveguide...
9035718 Directional coupler  
A directional coupler includes in a laminate block, a first main line, a first sub-line, a second sub-line, and a second main line sequentially provided in a lamination direction of layers....
9035713 Conductor winding and inductors arranged to form a balun having a figure eight shape  
A balun including a first conductor winding, a first inductor, a second inductor, a third inductor, and a fourth inductor. The first conductor winding has a figure eight shape including a first...
9035716 High frequency switch  
There is provided a high frequency switch having a reduced circuit scale while maintaining satisfactory harmonic characteristics in a transfer path of a high frequency signal. The high frequency...
9030271 Microstrip manifold coupled multiplexer  
A multiplexer includes a microstrip manifold, and a filter bank having at least two output filters. The multiplexer channelizes an input radio frequency (RF) band of electromagnetic energy into a...
9030275 RF monoblock filter with recessed top pattern and cavity providing improved attenuation  
An electrical signal filter defined by a block of dielectric material with a top surface, a bottom surface, side surfaces, and through-holes extending between the top and bottom surfaces. In one...