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7561007 Switchable phase shifter for providing selectable phase shift paths  
A switchable phase shifter includes an RF coupler arrangement which simultaneously produces 0° and 180° signals, together with controllable switches which select the desired phase of output...
7541894 Phase-shifting circuit and multibit phase shifter  
A phase-shifting circuit includes: a first parallel circuit which is connected across input and output terminals of a high frequency signal, composed of a first inductor and a first switching...
7535320 Phase shifter with flexible control voltage  
The invention provides a phase shifter with flexible control voltage that is useful with all RF systems that phase shift a RF signal. The phase shifter according to the present invention may...
7498999 Circuit board having a peripheral antenna apparatus with selectable antenna elements and selectable phase shifting  
A circuit board for wireless communications includes communication circuitry for modulating and/or demodulating a radio frequency (RF) signal and an antenna apparatus for transmitting and receiving...
7498903 Digital phase shifter  
Digital phase shifter, comprising series connection of controlled phase shifting bits ( 3 a - 3 k ), each of them inserts determinate amount of phase delay of the passing signal, wherein the phase...
7456706 Method and apparatus for electrically adjusting delay in radio-frequency systems  
An apparatus and method for providing an electrically adjustable RF delay in which a splitter splits an input signal into two signal paths, one signal path providing a delay fixed at an integral...
7355492 Electronically controlled hybrid digital and analog phase shifter  
The inventions presented herein provide a electronically controlled phase shifters that incorporate analog and digital phase shift architectures in a novel manner that realizes the best advantages...
7352189 Time aligned bussed triggering using synchronized time-stamps and programmable delays  
Techniques for triggering that provide time-aligned triggering of a set of components using a bussed topology. Triggering according to the present teachings includes a set of components that each...
7342534 Phased array radio frequency pulse generator  
A phased array radio frequency pulse generator includes a plurality of radio frequency pulse generator units ( 4, 4 a , 4 b , 4 c ) each having a non-linear dispersive electrical circuit ( 1 )...
7336143 Variable delay line using variable reactance devices to provide reflected delay signals  
First and second reactance parts are connected with the first and second output terminals of a hybrid coupler. The first and second reactance parts have a substantially identical reactance X.
7333790 Method and apparatus for generating arbitrary phase shift using a phase shifter based on adding two perpendicular vectors with variable gains  
A radio frequency (RF) phase shifter having an RC-CR circuit that includes a first capacitor having a first capacitor node and a second capacitor node and a first resistor coupled between the first...
7315225 Phase shifter providing multiple selectable phase shift states  
A single-structure, two-bit phase shifter useful for steering the beam of an antenna such as an aeronautical antenna. The phase shifter includes an input line, an output line, a plurality of...
7283018 Variable matching circuit, variable resonance circuit, variable phase-shifting circuit and variable attenuation circuit each having variable-capacitance capacitor  
In a variable matching circuit including an impedance device and a variable-capacitance capacitor, the variable-capacitance capacitor is formed in a manner that a plurality of variable-capacitance...
7276993 Analog phase shifter using cascaded voltage tunable capacitor  
A circuit topology is configured to flatten out a phase- and amplitude-response over a specified range of frequencies. The circuit topology also provides a large cumulative phase-shift. In one...
7239218 Phase shifter having switchable high pass filter and low pass filter paths and impedance adjustment circuits  
A phase shifter with a low insertion loss in which impedance mismatch at a point in rear of a high-pass filter or a low-pass filter in the signal flow direction is reduced and difference in...
7199665 Single to dual non-overlapping converter  
A converter includes an input circuit to receive a single-ended input signal to generate a number of control signals. The control signals have a delay different from one another relative to the...
7164329 Tunable phase shifer with a control signal generator responsive to DC offset in a mixed signal  
The present invention provides a phase shifting filter and a phase compensating direct downconversion receiver. A DC offset detector detects a DC offset in a received baseband signal and provides a...
7154440 Phase array antenna using a constant-gain phase shifter  
A constant-gain phase shifter is provided, comprising a first tank circuit with a first node to accept an input signal, a first inductor connected between the first node and a reference voltage,...
7123116 Phase shifter and multibit phase shifter  
A phase shifter includes an FET 2 a having its drain electrode connected to an input/output terminal 1 a ; and FET 2 b having its drain electrode connected to the source electrode of the FET ...
7049907 System and method for adjusting group delay  
A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel...
7012482 RF phase delay lines with variable displacement fluidic dielectric  
A phase delay line ( 100 ). The phase delay line can include an RF transmission line ( 110 ) and a fluid channel ( 109 ) having a serpentine configuration. The transmission line can be coupled to a...
6864760 Delay line with a parallel capacitance for adjusting the delay time  
A delay line comprising a dielectric substrate including a pair of main surfaces; a transmission line disposed on one of the main surfaces of the dielectric substrate; a ground conductor disposed...
6806792 Broadband, four-bit, MMIC phase shifter  
A broadband, 4-bit MMIC phase shifter for use in a phased array antenna is provided. The four bit selectable phase shifter for use in a phased array antenna of the present invention, which...
6781855 Power diverter  
A power diverter is presented. The power diverter includes a first ninety degree hybrid having one output coupled to a positive adjustable phase shifter and another output coupled to a negative...
6674341 Phase shifter and multibit phase shifter  
A miniaturized phase shifter and a multi-bit phase shifter are provided, in which filters are constructed using capacitors at FET pinch-off and pass phase can be shifted by turning the FET on and...
6587017 Method and apparatus for calibrated phase-shift networks  
An apparatus comprising a first calibration circuit and a phase shift network stage. The first calibration circuit may be configured to generate a control signal. The phase shift network stage may...
6545563 Digitally controlled monolithic microwave integrated circuits  
A transmit/receive module including digitally controlled analog circuits is described. The digital circuits use a logic family adapted for use with analog monolithic integrated circuits. The...
6531935 Vector modulator  
An analogue phase shifter with vector modulator is envisioned. The analogue phase shifter has an input stage that provides the generation of a pseudo-basis of four vectors. The analogue phase...
6400237 Phase compensation circuit, frequency converter device and active phased array antenna  
A phase compensation circuit includes two first inductive elements connected in series with a main line through which a signal is passed, a series circuit consisting of a capacitor and a variable...
6392507 Signal-processing apparatus for shifting phase of a signal inputted thereto and attenuating the signal  
A signal-processing apparatus is capable of stably operating without regard to outside circumstances and miniaturizing. The signal-processing apparatus for shifting phase of a signal inputted...
6369670 Dynamically adjustable tapped delay line  
A circuit ( 43 ) generates one or more signals to be delayed by a corresponding time intervals. Tapped delay lines ( 40 ) are coupled to the signals, each tapped delay line including a plurality of...
6356149 Tunable inductor circuit, phase tuning circuit and applications thereof  
A tunable inductor circuit and phase tuning circuit utilizing a tunable inductor circuit for dynamically controlling signal phase delay in RF/Microwave Circuits and related applications. The...
6335665 Adjustable phase and delay shift element  
An apparatus and method provide an adjustable phase and time delay to an input signal. The apparatus includes an inverting element and first and second variable capacitors. The inverting element...
6314279 Frequency offset image rejection  
An approach for providing image rejection during signal down conversion involves phase shifting quadrature signals at a frequency other than the down converted center frequency. One or more phase...
6281838 Base-3 switched-line phase shifter using micro electro mechanical (MEMS) technology  
A phased array antenna phase shifter having one or more serially connected stages, the stages allowing a transmission signal to pass through to a radiating element. Each of the stages have three or...
6275121 Microwave circuit for phase shifting having voltage transforming means to control switching  
A microwave phase shifter includes bias regulating circuits generating a gate bias of an FET switch element by processing a control voltage generated by the power-source voltage of an external...
6252474 Semiconductor phase shifter having high-pass signal path and low-pass signal path connected in parallel  
In a semiconductor phase shifter, a high-pass signal path and a low-pass signal path are connected in parallel between an input terminal and an output terminal. The high-pass signal path in...
6137377 Four stage selectable phase shifter with each stage floated to a common voltage  
The present invention provides a new architecture for MMIC circuitry that allows reception of electronically selectable single polarity or simultaneous dual polarity/dual beam signals by...
6121835 Variable time delay network, method and apparatus thereof  
A variable time delay network (210) includes segments (270, 260) which are connected in parallel to form variable time delay network (210). Segment (270) includes a varactor diode (222) and an...
6111477 Microwave phase shifter including a reflective phase shift stage and a frequency multiplication stage  
A phase shifter/modulator which provides linear phase control of a microwave continuous wave carrier signal. Linear phase shift range in excess of 360 degrees is provided as a result of linear...
6078299 Multi-phase coupler with a noise reduction circuit  
A multi-phase coupler including a noise reduction circuit which provides two output signals which are separately shifted in phase with respect to an input radio frequency (RF) signal. The input RF...
6078228 Arrangement and method for phase shifting signals in a telesystem  
A phase shifting electric circuit (1) comprises units for conveying an input signal (V1) from a main signal input (12) to a main signal output (11). The circuit (1) has a first signal path (18),...
6023406 LC composite component with variable capacitor and inductor  
An inductance/capacitance (LC) composite module with a built-in variable capacitor and coil is disclosed which includes a dielectric substrate having one principal surface on which a stator-side...
5825261 Passive, aperiodic phase shifting and attenuating device for electric signals  
A device provides, with passive circuits only, an output voltage in which ch spectral component is phase-shifted and attenuated by programmable values in relation to the spectral component of same...
5811655 Delay time calibration circuit and method  
A delay time calibration circuit reduces timing skews among a plurality of test channels of a semiconductor test system for testing a semiconductor device. The delay time calibration circuit...
5783977 Tunable and bandwidth programmable multi-element filter system  
A method and apparatus which realize an RF bandpass filter having a tunable bandwidth and center frequency over a large range of the radio frequency spectrum. The filter is comprised of a cascade...
5757319 Ultrabroadband, adaptive phased array antenna systems using microelectromechanical electromagnetic components  
A phased array radar system employs programmable microelectromechanical (MEM) switches and transmission lines to provide true time delays or phase shifts in order to steer the array beam. The array...
5736909 Monolithic continuous-time analog filters  
A continuous-time analog filter receiving a continuous-time analog input signal is provided. The filter utilizes a plurality of delay cells for receiving the input signal, and then processes the...
5708397 High frequency circuit device with stripline having an adjustable attachment position for varactor diode terminal  
A high-frequency circuit device includes a varactor diode having a first terminal and a second terminal, a first strip line connected to the first terminal of the varactor diode, a voltage being...
5701107 Phase shifter circuit using field effect transistors  
A phase shifter, which can switch between a phase delay circuit and a phase leading circuit consisting of inductors and capacitors, is constituted by disposing FETs having inductors or capacitors...
Matches 1 - 50 out of 155 1 2 3 4 >