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8150074 |
Impedance matching speaker wire system
An impedance matched connection is provided between a load and a power source that outputs signals within a predetermined frequency range. A coaxial line has a predetermined characteristic...
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8143967 |
Impedance matching method
An impedance matching method which is used to save electrical energy by virtue of the fact that the method switches between modes for controlling impedance matching and modes for regulation of the...
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8120259 |
Impedance matching methods and systems performing the same
Provided are an impedance matching method and a matching system performing the same. The method includes: measuring an electrical characteristic of the power transmission line; determining a pulse...
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8111111 |
Device comprising a controlled matching stage
Device (5) comprising controlled matching stages (10) for matching second stages such as antenna stages (2) to first stages such as power amplifier stages (1) get a simple construction by providing...
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8098112 |
Impedance tuner systems and probes
An impedance tuner may include a transmission media for propagating RF signals, a reflection magnitude control device mounted in a fixed position relative to a direction of signal propagation along...
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8098113 |
Self-terminating coaxial cable port
A circuit for automatically terminating a user port in a coaxial cable system includes a signal path extending from a user-side port toward a supplier-side port, the signal path including a...
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8086212 |
RF reception system and integrated circuit with programmable filter and methods for use therewith
An integrated circuit includes an on-chip filter component that forms a programmable filter with the at least one off-chip filter component. An RF receiver generates inbound data in response to a...
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8081931 |
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...
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8081043 |
Method and apparatus for varying an impedance
A method and apparatus for dynamically varying the impedance of a tank circuit whereby, over time, the response of the circuit to a received signal is maximized.
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8076991 |
Frequency hopping band-stop filter
A digitally-tunable filter includes a tunable filter circuit (110) for generating an output signal by processing an input signal based at least on a plurality of filter control signals (114). The...
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8072286 |
Apparatuses and a method for controlling antenna systems in a telecommunications system
The present invention relates to a method and an apparatus (20) for a radio frequency component (10), RF component, for use in antenna systems, wherein the RF component (10) is adapted to guide...
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8073646 |
Plasma processing apparatus, radio frequency generator and correction method therefor
A plasma processing apparatus includes a radio frequency generator capable of adjusting a target output power level based on the set power level and the offset level to output radio frequency...
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8072285 |
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...
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8067997 |
Apparatus and method of selecting components for a reconfigurable impedance match circuit
A method of selecting component values for an analog circuit includes identifying a cost function that evaluates similarity between an approximate frequency response function and a preferred...
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RE42917 |
RF power control device for RF plasma applications
There is provided by this invention an improved rf power control device for plasma applications for optimization of the feedback control voltage in the presence of harmonic and non-harmonic...
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8044679 |
On-die termination control circuit of semiconductor memory device
On-die termination control circuit of semiconductor memory device includes a counter configured to count an external clock to output a first code, and to count an internal clock to output a second...
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8022795 |
Variable impedance adapter for tuning system performance
A variable impedance adapter that has a value of characteristic impedance that is responsive to changes in the configuration of the adapter. In one embodiment, the variable impedance adapter...
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8018446 |
Differential signaling system and display using the same
A differential signaling system includes a pair of differential signal lines having a transmitting end and a receiving end, and a termination resistor and an active impedance compensator connected...
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8008982 |
Method and apparatus for adaptive impedance matching
A system that incorporates teachings of the present disclosure may include, for example, an adaptive impedance matching network having an RF matching network coupled to at least one RF input port...
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7999609 |
Managed wideband radio frequency distribution system with signal level enabling interface device and impedance signature detection
A system and method for managing distribution of wideband radio frequency signals includes detecting an impedance signature of a device connected at the end of transmission medium. A switch is...
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7994872 |
Apparatus for multiple frequency power application
Apparatus and methods are provided for a power matching apparatus for use with a processing chamber. In one aspect of the invention, a power matching apparatus is provided including a first RF...
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7973621 |
Hom damped high-frequency resonator
A HOM attenuated high frequency resonator provided with a cylindrical resonator cavity on the outer surface of which are arranged three circular tapered waveguides with two symmetrically arranged...
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7949126 |
Unsplit bipolar pulse forming line
A bipolar pulse forming transmission line module and system for linear induction accelerators having first, second, third, and fourth planar conductors which form a sequentially arranged...
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7936233 |
Coaxial automatic impedance adaptor
The invention concerns a coaxial automatic impedance adaptor characterized in that it comprises two slugs and has only a lateral translational movement along an axis Ox. The double slug tuner...
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7913005 |
Capacitive multidrop bus compensation
The signal integrity of a high speed heavily loaded multidrop memory bus is often degraded due the numerous impedance mismatches. The impedance mismatches causes the bus to exhibit a nonlinear...
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7902860 |
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...
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7868713 |
Impedance matching circuit and impedance matching system employing the impedance matching circuit
An exemplary impedance matching circuit (20) includes a signal processing circuit (22) and a variable resistance unit (24). The signal processing unit is configured for identifying a frequency of a...
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7863996 |
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...
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7852170 |
Adaptive impedance matching apparatus, system and method with improved dynamic range
An embodiment of the present invention provides an apparatus, comprising an RF matching network connected to at least one RF input port and at least one RF output port and including one or more...
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7835717 |
RF reception system and integrated circuit with programmable filter and methods for use therewith
An integrated circuit includes an on-chip filter component that forms a programmable bandpass filter with the at least one off-chip bandpass filter component. The programmable bandpass filter is...
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7831226 |
Impedance matching system, network analyzer having the same, and impedance matching method thereof
An impedance matching system, a network analyzer having the same, and an impedance matching method thereof are disclosed. The system includes a signal extractor to extract an output signal and an...
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7831219 |
Matching network
A matching network for matching an antenna to a transmitter or receiver comprises an input port for receiving high-frequency power, an output port and a switchable impedance transformation circuit,...
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7808336 |
Impedance tuner systems and probes
An impedance tuner may include a transmission media for propagating RF signals, a reflection magnitude control device mounted in a fixed position relative to a direction of signal propagation along...
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7804355 |
Managed wideband radio frequency distribution system with signal level enabling interface device
A system and method for managing distribution of wideband radio frequency signals includes detecting an impedance signature of a device connected at the end of transmission medium. A switch is...
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7795988 |
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 plane...
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7795989 |
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...
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7795990 |
Tunable microwave devices with auto-adjusting matching circuit
An embodiment of the present invention provides a power amplifier, comprising tunable impedance matching circuit including a plurality of tunable dielectric varactors and a DC voltage source...
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7786819 |
Apparatus comprising an antenna element, which efficiently performs at both a first resonant frequency band and a second resonant frequency band, method and computer program therefore
An apparatus including a matching circuit; a first variable reactance component, having a first range of reactance values, and connected to the matching circuit and connectable to an antenna...
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7777567 |
RF power amplifier stability network
A radio frequency (RF) generator for applying RF power to a plasma chamber includes a DC power supply (B+). A radio frequency switch generates the RF power at a center frequency f0. A low-pass...
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7777152 |
High AC current high RF power AC-RF decoupling filter for plasma reactor heated electrostatic chuck
An RF blocking filter isolates a two-phase AC power supply from at least 2 kV p-p of power of an HF frequency that is reactively coupled to a resistive heating element, while conducting several kW...
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7764140 |
Radio frequency power delivery system
A system and method are provided for delivering power to a dynamic load. The system includes a power supply providing DC power having a substantially constant power open loop response, a power...
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7750752 |
Programmable SAW filter module
Programmable SAW filter module are provided to overcome undesirable drawbacks, limitations and shortcomings associated with “in-line” SAW filters, such as insertion loss, propagation loss and str...
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7738653 |
Method for selecting impedance setting for loop start trunk line
A method of selecting an optimum impedance for a loop start trunk line, comprising successively applying respective ones of a plurality of impedance settings to the loop start trunk line, for each...
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7729427 |
Pseudo-synchronous one wire bidirectional bus interface
A system and method for transferring data between a transmitter and a receiver over a single conductor is disclosed. During a data transfer operation of bit of information, the voltage level on the...
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7728692 |
Reduction of noise in a metallic conductor signal pair using controlled line balancing and common mode impedance reduction
In order to reduce noise on twisted metallic pair signal conductors, circuits are disclosed in which the signal balance between the wires of the pair is significantly improved, thereby reducing the...
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7714676 |
Adaptive impedance matching apparatus, system and method
An embodiment of the present invention provides an apparatus, comprising an RF matching network connected to at least one RF input port and at least one RF output port and including one or more...
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7706770 |
RF reception system and integrated circuit with programmable filter and methods for use therewith
An integrated circuit includes an on-chip antenna interface, coupled to an off-chip antenna interface having at least one off-chip filter component that forms a programmable filter with the at...
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7671693 |
System and method for a tunable impedance matching network
The present disclosure relates generally to tunable impedance matching networks and methods for the use of such networks. In one example, a method includes identifying state information about a...
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7646267 |
Low frequency electro-mechanical impedance tuner
A segmented, electro-mechanical, remotely controlled programmable impedance tuner for the frequency range between 10 and 200 MHz uses a cascade of three continuously variable mechanical capacitors...
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7642879 |
Impedance matching apparatus
An impedance matching apparatus 3 calculates a forward wave voltage Vfo and a reflected wave voltage Vro at an output terminal 3b, based on a forward wave voltage Vfi and a reflected wave voltage...
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