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US20110163935 Dynamic Impedance Matching Network and Method for Matching an Impedance Between a Source and a Load  
An impedance matching network includes an impedance matching circuit for dynamically matching an impedance between a source and a load. Matching is done by varying the real part and the imaginary...
US20130187727 METHODS FOR TUNING AN ADAPTIVE IMPEDANCE MATCHING NETWORK WITH A LOOK-UP TABLE  
Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a...
US20120154069 METHODS FOR TUNING AN ADAPTIVE IMPEDANCE MATCHING NETWORK WITH A LOOK-UP TABLE  
Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a...
US20120056689 METHODS FOR TUNING AN ADAPTIVE IMPEDANCE MATCHING NETWORK WITH A LOOK-UP TABLE  
Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a...
US20130234804 Method and Circuitry for Matching Impedance  
Disclosed are a method and a circuit for impedance matching. The method comprises: a peripheral impedance detection module detecting an impedance of a subscriber telephone and outputting...
US20130207736 RESISTANCE MEASURING CIRCUIT, RESISTANCE MEASURING METHOD, AND IMPEDANCE CONTROL CIRCUIT  
A resistance measuring method includes: measuring a resistance value of a first path which is formed from an interface pad through a resistor unit to a ground node; measuring a resistance value of...
US20120276862 METHODS FOR CALIBRATING A TRANSMITTER, AND RADIO TRANSMITTER  
In an embodiment, a radio transmitter may be provided. The radio transmitter may include a radio transmitter control loop; and a controller configured in such a way that it operates the radio...
US20130181787 ADAPTIVE IMPEDANCE MATCHING  
An embodiment of the present invention provides a method for limiting tuning of a matching network having variable reactive elements coupled to a variable load impedance to at least reduce an...
US20130293316 METHODS FOR DIRECTIONAL COUPLER TERMINATION IMPEDANCE CONTROL  
Methods for directional coupler termination impedance control are provided. In one embodiment, a method for termination impedance selection of a directional coupler in a power amplifier module is...
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...
US20130069735 LOAD IMPEDANCE DECISION DEVICE, WIRELESS POWER TRANSMISSION DEVICE, AND WIRELESS POWER TRANSMISSION METHOD  
A load impedance decision device, a wireless power transmission device, and a wireless power transmission method are provided. At least one of a distance and an angle between two resonators may be...
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...
US20110012689 Impedance Adjustment Circuit for Adjusting Terminal Resistance and Related Method  
An impedance adjustment circuit for adjusting a terminal resistance includes a resistance evaluation unit and a terminal resistor unit. The resistance evaluation unit is utilized for evaluating a...
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...
US20120119842 TUNING METHODS FOR TUNABLE MATCHING NETWORKS  
Methods for tuning a tunable matching network can involve comparing a source impedance of a source to a real part of a load impedance of a load. Depending on characteristics of the network,...
US20130321092 HYBRID ACTIVE TUNING SYSTEMS AND METHODS  
An impedance tuner system that uses at least one passive tuner and at least one active tuner to control one or more impedances at a reference plane or planes. Each of the at least one active...
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...
US20150035613 ULTRA-WIDEBAND IMPEDANCE TUNER  
A mechanical impedance tuner has at least two probe carriages mounted for movement along an axis parallel to the center conductor. The at least two probe carriages including a first probe carriage...
US20140347141 RESISTANCE ADJUSTING CIRCUIT AND RESISTANCE ADJUSTING METHOD  
A resistance adjusting circuit including, a reference resistor, a first power source configured to output a first voltage, a first current source configured to output a first current based on a...
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...
US20100073103 METHODS FOR TUNING AN ADAPTIVE IMPEDANCE MATCHING NETWORK WITH A LOOK-UP TABLE  
Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a...
US20110163824 ELECTRONIC CIRCUIT AND ELECTRONIC DEVICE  
An electronic circuit includes a first inductor, a second inductor that is magnetically coupled with the first inductor, induced current flowing through the second inductor by a magnetic field...
US20090085688 Semiconductor Circuit, and Computing Device and Communications Device Using the Same  
In a semiconductor circuit, an impedance adjustment circuit having the characteristics same as those of a circuit having the nonlinear resistance characteristics is configured to include an...
US20150162891 LUMPED ELEMENT RADIO FREQUENCY TUNING CALIBRATION PROCESS  
A preferred method for efficiently tuning RF ports while avoiding conventional labor intensive, step-by-step processes is disclosed. The method may use at least three tuning blocks (comprised of...
US20130187828 TUNABLE MATCHING NETWORK FOR ANTENNA SYSTEMS  
A communication system is provided, including an antenna, a matching network coupled to the antenna, a controller configured to control the matching network, and a look-up table coupled to the...
US20100073104 Tune Range Limiter  
An impedance matching network includes a first input port that receives radio frequency (RF) power and includes an input impedance, an output port that provides the RF power and includes an output...
US20120098614 RF/VHF IMPEDANCE MATCHING, 4 QUADRANT, DUAL DIRECTIONAL COUPLER WITH VRMS/IRMS RESPONDING DETECTOR CIRCUITRY  
A physical vapor deposition system may include an RF generator configured to transmit an AC process signal to a physical vapor deposition chamber via an RF matching network. A detector circuit may...
US20080163889 MEGASONIC TRANSDUCER MATCHING NETWORK FOR WET CLEAN CHAMBERS  
The present invention generally provides a cost-effective method and apparatus for matching power source and transducer load impedances for an array of acoustic-wave transducers used in wet...
US20080186105 CIRCUIT FOR MATCHING THE LOAD IMPEDANCE OF AN ELECTRONIC DEVICE  
A circuit matches the load impedance of an electronic device. The circuit comprises an impedance network, a control circuit suitable for varying the impedance of said network and a sensor coupled...
US20080284537 Impedance Matching Network, and Plasma Processing Apparatus Using Such Impedance Matching Network  
Provided is an impedance matching network having: an amplitude-adjusting variable capacitor and a phase-adjusting variable capacitor that are positioned between an input terminal and an output...
US20140320229 TRANSMISSION LINE DRIVER WITH OUTPUT SWING CONTROL  
A transmission line driver including an output configured to have a load impedance is provided. The transmission line driver includes a pull-up circuit coupled in series with the output. The...
US20090140766 Signal transmission circuit and characteristic adjustment method thereof, memory module, and manufacturing method of circuit board  
A signal transmission circuit comprising: first and second transmission lines connected to each other; a first impedance storage circuit storing an impedance of the first transmission line; and a...
US20120086517 IMPEDANCE STABILIZATION DEVICE  
Provided is an impedance stabilization device having a configuration in which a circuit including a series matching impedance element (11a and 12a (11b and 12b)) and a high-frequency blocking...
US20090174496 Load-Line Adaptation  
According to the general concept disclosed herein, a circuit for adaptive matching of a load impedance to a predetermined load-line impedance of a load-line connected to a power amplifier output...
US20070030091 RF matching network of a vacuum processing chamber and corresponding configuration methods  
A RF matching network is described, and which includes a 1st to nth RF generators, and wherein each RF generator has a different frequency, and wherein the frequencies of the 1st to the nth RF...
US20120176145 IMPEDANCE TUNER SYSTEMS AND PROBES  
An impedance tuner may include a shunt stub located at a fixed location along the transmission media, and a phase shifter to control the reflection phase. Another embodiment includes an adjustable...
US20120007692 IMPEDANCE MATCHING APPARATUS AND METHOD OF ANTENNA CIRCUIT  
An impedance matching apparatus is provided. The impedance matching apparatus includes a signal separation unit, an impedance detection unit, and an impedance matching unit. The signal separation...
US20150214917 METHOD FOR PERFORMING DYNAMIC IMPEDANCE MATCHING AND A COMMUNICATION APPARATUS THEREOF  
Method for performing dynamic impedance matching and communication apparatus thereof are provided. With respect to an operating band of an impedance matching circuit of a communication device, a...
US20080218286 Compact Automatic Impedance Adapter in a Waveguide  
The invention relates to a compact automatic impedance adapter in a waveguide, characterised in that the impedance is controlled by plungers, filling the entire guide with a magic-tee coupler...
US20100079167 DIFFERENTIAL VOLTAGE MODE DRIVER AND DIGITAL IMPEDANCE CALIBERATION OF SAME  
A differential voltage mode driver and digital impedance calibration of same is provided. In one embodiment, the invention relates to a method of calibrating a differential driver circuit having a...
US20130002367 WIDEBAND LOW FREQUENCY IMPEDANCE TUNER  
Compact electro-mechanical impedance tuners for frequencies as low as 1 MHz use the concept of a cylindrical transmission line with the signal conductor being a spiral wire wound around a metallic...
US20100026410 TRANSCEIVER DEVICE AND IMPEDANCE MATCHING METHOD  
A transceiver device and an impedance matching method are provided. In the impedance matching method, a plurality of matching modes is set. Each matching mode includes a default impedance and a...
US20120112848 Automatic Termination Circuit and Method  
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...
US20090046030 Automatic Antenna Tuning Unit for Software-Defined and Cognitive Radio  
A closed-loop controlled antenna tuning unit (ATU) system includes a return loss detector connected to sample an RF signal generated by a signal source to provide a return loss signal. A matching...
US20150229289 IMPEDANCE MATCHING DEVICE AND CONTROL METHOD  
In an impedance matching device, a storage unit stores a control value representing a load value and a value equivalent to input impedance in advance. The control value identifies inductance and...
US20140191819 IMPEDANCE MATCHING DEVICE AND CONTROL METHOD  
In an impedance matching device, a storage unit stores a control value representing a load value and a value equivalent to input impedance in advance. The control value identifies inductance and...
US20120176205 VARIABLE MATCHING CIRCUIT  
A first line stub SB1 and one end of each of two switches SW1 and SW2 are connected to a transmission line 11L at spacings L1, L2 and L3 in order from the input end of the transmission line 11 L,...
US20140097911 SEMICONDUCTOR DEVICE  
A device, comprising an output terminal; an output circuit coupled to the output terminal and having an adjustable impedance; and an impedance adjustment circuit adjusting stepwise the adjustable...
US20080007368 Apparatus and methods for forming electrical networks that approximate desired performance characteristics  
Electrical networks are formed to produce an approximation of at least one desired performance characteristic, based on the recognition that fabrication variations introduce slight differences in...

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