Matches 1 - 50 out of 261 1 2 3 4 5 6 >


Match Document Document Title
US20130069835 MULTIBAND ANTENNA ASSEMBLIES WITH MATCHING NETWORKS  
An exemplary embodiment of a base assembly includes a printed circuit board and a balun coupled to the printed circuit. The printed circuit board and balun are configured to be operable for...
US20130063223 IMPEDANCE MATCHING CIRCUITS WITH MULTIPLE CONFIGURATIONS  
Reconfigurable impedance matching circuits with multiple configurations are disclosed. A reconfigurable impedance matching circuit may be implemented with a set of reactive elements (e.g.,...
US20140015622 HEAT DISSIPATING OUTPUT NETWORK  
A heat dissipating output network (110) is provided. The heat dissipating output network (110) includes one or more impedance elements (204) and one or more capacitors (206), with the one or more...
US20130009724 NON-FOSTER CIRCUIT STABILIZATION METHOD  
A method of and circuit for improving stabilization of a non-Foster circuit. The method comprises steps of and the circuit includes means for measuring a noise hump power at an antenna port or an...
US20110209827 AUTOMATIC MATCHING UNIT AND PLASMA PROCESSING APPARATUS  
In an automatic matching unit, a controller includes a first and a second matching algorithm. The operating point Zp is moved stepwise toward the matching point Zs with a relatively large pitch by...
US20140141735 RF Transmitter Having Broadband Impedance Matching for Multi-Band Application Support  
Systems and methods are provided for a broadband, closed-loop RF transmitter for multi-band applications that employs a single RF path to service multiple bands of operation. Embodiments of the...
US20120249259 RF impedance detection using two point voltage sampling  
An adaptive impedance matching module having an adjustable impedance matching network with an input for receiving an RF power source and an output to be connected to an antenna, and first and...
US20110254461 Power adaptors  
A power adaptor (20) is provided, comprising an input (22) for connection to an AC power supply, and a resonant circuit (34) coupled to the input (22) that provides an output suitable for driving...
US20140197900 SYSTEMS AND METHODS FOR IMPEDANCE SWITCHING  
Systems and methods for switching impedance are provided. In some aspects, a system includes first and second impedance elements and an impedance switch module, which includes a third impedance...
US20120169335 MULTI-ELEMENT TRANSMIT RF CHAIN WITH LOCAL AUTOMATIC TUNE AND MATCH DEVICE  
An automatic tune and match device (3) and method comprises a reflected power sensor (32) which detects power reflected from a load (18,18′) and an LC matching circuit, in series with the load,...
US20120064765 Coaxial Connector Interconnection Cap  
A coaxial connector is combined with an inner conductor interconnection cap, for interconnection with a coaxial cable. The interconnection cap is provided with a bore adapted to seat upon and...
US20130009722 WIDE BANDWIDTH AUTOMATIC TUNING CIRCUIT  
An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing...
US20130009720 WIDE BANDWIDTH AUTOMATIC TUNING CIRCUIT  
An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing...
US20130154760 BONDING WIRE IMPEDANCE MATCHING CIRCUIT  
An impedance matching circuit is provided. The present impedance matching circuit is able to match impedance using a transformer which is arranged inside a dielectric substrate and arranged to...
US20140210568 MATCHING NETWORK  
A matching network for matching the impedance of a load to an impedance of an electrical energy source has an output, an input, an inductance, a capacitance, and a series connection of a nonlinear...
US20120032751 VARIABLE IMPEDANCE MATCHING CIRCUIT  
A variable impedance matching circuit includes a series or parallel connection of a fixed inductive element and a first variable capacitive element and a second variable capacitive element...
US20130009721 COMPACT HARMONIC IMPEDANCE TUNER  
An impedance matching, harmonic electromagnetic tuner has an airline with multiple slots to reduce the overall length of the tuner. At least one RF probe is disposed within each slot so that it...
US20080150650 Integrated analog video system  
A video driver includes a current-to-voltage converter circuit that converts an analog input current to a corresponding analog voltage. Active termination circuitry is configured to synthesize an...
US20140354294 SOLID STATE IMPEDANCE TUNERS  
A solid state impedance tuner or impedance tuner system including a housing structure and at least two solid state tuner modules electrically combined and disposed in one package within the...
US20120242284 FILTER FOR IMPROVED DRIVER CIRCUIT EFFICIENCY AND METHOD OF OPERATION  
This disclosure provides systems, methods and apparatus for increasing the efficiency of an amplifier when driven by a variable load. In one aspect a transmitter device is provided. The...
US20110172656 SOFT GENERATOR  
A high-frequency surgical generator for generating high efficiency outputs that can be operated in resonance over a wide load resistance range. The high-frequency surgical generator includes, a...
US20130222060 MUTUALLY COUPLED MATCHING NETWORK  
An impedance matching circuit is disclosed. The impedance matching circuit includes two or more mutually coupled inductors. A total self inductance of the impedance matching circuit is less than a...
US20110068878 POWER DISTRIBUTION SYSTEM FOR INTEGRATED CIRCUITS  
A power distribution system for integrated circuits includes methods to damp resonance between a bypass capacitor network and a power/ground cavity of the printed circuit board that (a) does not...
US20130057359 ADJUSTABLE CAPACITATIVE ELEMENT  
The invention relates to an adjustable capacitative element which can assume discrete capacity values the impedance values Z, of which that it can assume are distributed as evenly as possible in...
US20140240057 IMPEDANCE TRANSFORMATION NETWORK FOR IMPROVED DRIVER CIRCUIT PERFORMANCE  
This disclosure provides systems, methods and apparatus for reducing harmonic emissions. One aspect of the disclosure provides a transmitter apparatus. The transmitter apparatus includes a driver...
US20120001702 Output Impedance Compensation for Voltage Regulators  
Method and circuit topology for an impedance compensation circuit (ICC), for compensating a DC voltage regulator circuit (RC). The ICC comprises individual components that are workable in...
US20120062332 VARIABLE CAPACITANCE MODULE AND MATCHING CIRCUIT MODULE  
In a variable capacitance module capable of achieving necessary variable capacitance ranges, a variable capacitance circuit includes a variable capacitance element and fixed capacitance elements....
US20130069737 ADAPTIVE TUNING OF AN IMPEDANCE MATCHING CIRCUIT IN A WIRELESS DEVICE  
Techniques for adaptively tuning an impedance matching circuit are disclosed. In an aspect, the impedance matching circuit is pre-characterized. The performance of the impedance matching circuit...
US20080290959 MILLIMETER WAVE INTEGRATED CIRCUIT INTERCONNECTION SCHEME  
A millimeter-wave integrated circuit (IC) package is disclosed. The package includes a substrate having a plurality of layers and a vertical interconnection. The vertical interconnection comprises...
US20150162889 VARIABLE CAPACITANCE CIRCUIT AND IMPEDANCE MATCHING CIRCUIT  
A first variable capacitance section included in a variable capacitance circuit includes a plurality of first variable capacitance elements connected to a signal line and each having a first...
US20140176388 TUNABLE IMPEDANCE NETWORK  
A tunable impedance network and a method for tuning the tunable impedance network are disclosed. In one aspect, the tunable impedance network comprises a plurality of transformers connected in...
US20080099881 Semiconductor for macro and micro frequency tuning, and antenna and frequency tuning circuit having the semiconductor  
A semiconductor element for macro and micro frequency tuning, and an antenna and a frequency tuning circuit having the semiconductor element, are provided. The semiconductor element includes first...
US20100308933 TUNABLE MATCHING CIRCUITS FOR POWER AMPLIFIERS  
Tunable matching circuits for power amplifiers are described. In an exemplary design, an apparatus may include a power amplifier and a tunable matching circuit. The power amplifier may amplify an...
US20140159829 VARIABLE CAPACITANCE CIRCUIT  
There is provided a variable capacitance circuit, including a capacitance circuit unit connected between a first terminal and a second terminal and providing a preset capacitance, a variable...
US20120154071 COMBINED BALUN AND IMEDANCE MATCHING CIRCUIT  
An apparatus for providing impedance matching between a single-ended circuit and a differential circuit includes first and second capacitors and first and second inductors. The first capacitor is...
US20120016611 IMPEDANCE MATCHING SYSTEM AND OPERATING METHOD THEREOF  
An impedance matching system is provided. The impedance matching system includes an impedance matching apparatus and an impedance analysis apparatus. The impedance matching apparatus varies a...
US20110175687 TUNABLE MATCHING NETWORK CIRCUIT TOPOLOGY DEVICES AND METHODS  
Methods and devices for modifying a tunable matching network are disclosed. In one aspect, a method of modifying a tunable matching network can include connecting one or more shunt inductors to a...
US20130241665 VARIABLE CAPACITOR, IMPEDANCE MATCHING DEVICE, MOBILE TERMINAL THEREOF AND METHOD FOR MATCHING IMPEDANCE  
Disclosed is an impedance matching device. Variable devices of the impedance matching device installed in a mobile terminal, such as a portable terminal, are configured to have a MEMS structure....
US20140266492 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...
US20110050358 Electromagnetic Interference Noise Separator  
Improved performance of a noise separator circuit capable of separating common mode (CM) and differential mode (DM) components of electromagnetic interference (EMI) noise are provided by...
US20130194054 COMBINED DIRECTIONAL COUPLER AND IMPEDANCE MATCHING CIRCUIT  
An output circuit with an integrated directional coupler and impedance matching circuit is disclosed. In an exemplary design, an apparatus includes a switchplexer and an output circuit. The...
US20150162892 COMMUNICATION DEVICE AND METHOD OF ADJUSTING APPLIED VOLTAGE FOR MATCHING CIRCUIT  
A communication device changes an applied voltage output from a voltage circuit, and allows a capacitance measuring device to measure the respective capacitance values of a variable capacitance...
US20130207730 IMPEDANCE MATCHING CIRCUIT, POWER AMPLIFIER AND MANUFACTURING METHOD FOR VARIABLE CAPACITOR  
Disclosed is an impedance matching circuit capable of wideband matching. The impedance matching circuit includes: a first variable inductor unit of which one end is connected to the first node and...
US20080106352 Coupler to C-pathway device and methodology  
The invention is an electromagnetic wave or “EM” coupler for successfully connecting EM waves between an EM generator output and a conductive pathway or “c-pathway” that is not normally considered...
US20090066448 TUNER AND TRANSFORMER FORMED BY PRINTED CIRCUIT BOARD THEREOF  
A tuner and a transformer formed by printed circuit board thereof are provided. The transformer includes a first winding and a second winding. In which, the first winding forms a first inductor...
US20100315176 ACTIVE BACK-END TERMINATION CIRCUIT  
The invention discloses an active back-end termination circuit, which comprises a first resistor, a first transistor, a second resistor, and a second transistor. The first resistor and the first...
US20150022281 Capacitors Adapted for Acoustic Resonance Cancellation  
An embodiment of the present invention provides a method, comprising reducing the losses due to electro-mechanical coupling and improving Q in a multilayered capacitor by placing a first capacitor...
US20140225672 INPUT MATCH NETWORK WITH RF BYPASS PATH  
A power circuit includes a RF transistor and an input match network coupled to an input to the RF transistor and to an input to the power circuit. The input match network includes a resistor, an...
US20130002368 Circuits and Methods for Providing an Impedance Adjustment  
An apparatus includes a signal generator and a control circuit. The signal generator includes a control terminal and includes a current electrode coupled to a terminal that is configured to couple...
US20140035696 COMMON MODE TERMINATION WITH C-MULTIPLIER CIRCUIT  
Embodiments of the present disclosure provide input termination circuits that overcome the deficiencies of conventional designs. Specifically, embodiments eliminate large-on chip bypass capacitors...

Matches 1 - 50 out of 261 1 2 3 4 5 6 >