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8179208 Interconnect for surfing circuits  
An interconnect for surfing circuits is presented. The interconnect includes at least one control signal line, at least one data signal line, and at least one variable capacitor coupled to the at...
8149165 Configurable antenna interface  
Techniques for interfacing a set of active elements with an antenna array. In one exemplary embodiment, the active elements include a plurality of signal paths, each signal path including a mixer...
7928817 Switchable high pass filter/low pass filter phase shifter having a switch circuit with FETs connected in parallel  
A switch circuit in which the cut-off characteristic is improved over a wide range of frequencies in the microwave band includes a first field-effect transistor functioning as a switch element, a...
7907100 Phased array antenna with extended resonance power divider/phase shifter circuit  
A phased array for controlling a radiation pattern of an array of antennas includes a plurality of antenna ports, a first tunable element connected in series between each respective pair of...
7864000 High frequency switching circuit  
There is provided a high frequency switching circuit that can reduce generation of a harmonic signal without using a boost circuit. A high frequency switching circuit according to an aspect of the...
7855611 Delay line calibration  
A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple...
7843282 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...
7839237 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...
7812689 Phase shifter including a resonant type switch with a free region  
Disclosed is a microwave phase shifter including switches each of which utilizes resonance between an off-capacitance of an FET and an inductor connected in parallel with the off-capacitance of the...
7764142 Series connected bit phase shifter having first and second impedance adjusting circuits  
A bit phase shifter includes a plurality of phase shifters having phase shift amounts and connected in series through connection paths; and a first adjusting circuit provided in the connection path...
7724107 Phase shifter having switchable signal paths where one signal path includes no shunt capacitor and inductor  
A phase shifter includes a first signal path in which a first unit is disposed to advance a phase of a signal; a second signal path in which a second unit with no shunt capacitor is disposed to...
7719386 Phase shifter having components which suppress fluctuations in the phase shifter pass characteristics  
A phase shifter selectively switches between a low-pass filter 13 and a high-pass filter 12 using single pole double throw switches 10a and 10b provided on the input and output sides, respectively,...
7714681 Reconfigurable phase-shifter  
A phase shifter device having two bandwidth modes arranged for altering the electrical length of a signal path between at least two different values, which device is adapted for guiding a signal...
7646268 Low frequency harmonic load pull tuner and method  
An electro-mechanical harmonic load pull tuner uses three variable and adjustable shunt air capacitors and three variable and adjustable series phase shifters and creates independently controllable...
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 s...
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 (3a-3k), each of them inserts determinate amount of phase delay of the passing signal, wherein the phase change...
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, 4a, 4b, 4c) each having a non-linear dispersive electrical circuit (1) incorporating...
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 2a having its drain electrode connected to an input/output terminal 1a; and FET 2b having its drain electrode connected to the source electrode of the FET 2a and its...
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 solid...
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...
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...
Matches 1 - 50 out of 168 1 2 3 4 >