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7589603 Phase shifter having power dividing function for providing a fixed phase shift and at least two phase shifts based on path length  
Disclosed is a phase shifter having a power dividing function. The phase shifter includes: an input port for receiving a radio frequency (RF) signal; a power dividing unit for dividing the RF...
7570133 Wideband passive amplitude compensated time delay module  
A true time delay (“TTD”) system with wideband passive amplitude compensation is provided. The TTD system includes an input switch, an output switch, a reference delay line disposed between the...
7561006 Low loss electrical delay line  
A delay line system able to reduce the microwave loss by reducing the effective dielectric loss and dielectric constant of the system including a signal line, dielectric system with opened trench...
7557675 Broad band mechanical phase shifter  
Mechanical phase shifter which from an external feed signal obtains several signals out of phase with each other, each one of which is applied to an antenna of an array, so that the result of the...
7477116 Phase shifters having a tunable dielectric layer and a resistive ink layer and method of manufacture therefore  
An embodiment of the present invention provides a phase shifter, comprising a substrate, resistive ink adjacent one surface of said substrate and separating a voltage tunable dielectric material...
7463190 Panel antenna with variable phase shifter  
A panel antenna having a variable phase shifter module with at least one main-PCB having an input trace coupled to a wiper junction. An arcuate trace on the main-PCB extending between a first...
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...
7408424 Compact RF circuit with high common mode attenuation  
A compact RF differential circuit has a first differential I/O port comprising a first pair of signal carrying terminals which is connected to a source termination and a second differential I/O...
7365618 High-frequency circuit device, high-frequency module, and communication apparatus  
A high-frequency circuit device, a high-frequency module, and a communication apparatus, which prevent generation of an undesired wave to prevent electrical power loss and undesired coupling, are...
7358833 Method and apparatus for signal processing using electrowetting  
An apparatus comprising a tuning device having at least one control electrode and a ground electrode located over a substrate and an electrically conductive fluid in contact with the control and...
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...
7332983 Tunable delay line using selectively connected grounding means  
A tunable delay line system includes a stripline and a plurality of cross-over lines. The stripline defines a propagation delay characteristic. The plurality of cross-over lines are each spaced...
7301422 Variable differential phase shifter having a divider wiper arm  
A variable differential phase shifter including an isolation element providing good isolation between output ports, good return loss and reduced reflections. In one embodiment a Wilkinson divider...
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...
7274331 Phase-shifting system using a displaceable dielectric and phase array antenna comprising such a phase-shifting system  
A phase-shifting system for electrically swiveling the direction of a beam of an antenna field includes several radiators with two planes of polarization. The phase-shifting system includes two...
7259641 Microelectromechanical slow-wave phase shifter device and method  
The present invention provides a method and apparatus for a monolithic device utilizing cascaded, switchable slow-wave CPW sections that are integrated along the length of a planar transmission...
7242265 Element of parallel flat plate line type, a circuit board  
An element of parallel flat plate line type suitable for operation at a higher speed and with a higher frequency is provided. The element is characterized by including a first metallic member 1 ...
7239220 Adjustable delay transmission line  
A transmission line includes a signal conductor and at least one varactor diode capacitively coupled to the signal conductor. The transmission line's signal path delay is a function of its shunt...
7239219 Miniature RF and microwave components and methods for fabricating such components  
RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of...
7187252 Apparatus for delaying radio frequency signals  
In the present technique for transmitting and delaying radio frequency signal transmission, an RF delay filter ( 102 ) is provided with at least one high permittivity material coaxial delay element...
7173503 Multibit phase shifter with active and passive phase bits, and active phase bit therefor  
An RF phase shifter includes the cascade of active and passive RF phase shift bits, having different phase increments. The active phase shift bit includes a FET with source and drain. First and...
7170466 Wiper-type phase shifter with cantilever shoe and dual-polarization antenna with commonly driven phase shifters  
A wiper-type phase shifter with a cantilever shoe that ensures that the electrical contact on the wiper arm remains in electrical communication with the transmission trace located on the antenna...
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,...
7154049 Apparatus for crosstalk compensation in a telecommunications connector  
A printed circuit board providing crosstalk compensation. The printed circuit board includes first plated through holes for receiving a first connecting component and second plated through holes...
7126442 Phase shifter  
A phase shifter comprises: a phase shift unit including a reactance unit having a first variable capacitance device, and a susceptance unit having a second variable capacitance device, T-connected...
7102463 Printed circuit board (PCB) which minimizes cross talk and reflections and method therefor  
This invention relates to semiconductor devices and to printed circuit boards (PCB) or circuit assemblies used to electrically connect components. Delay devices are associated with the conductive...
7084724 MEMS fabrication on a laminated substrate  
Systems and methods are provided that facilitate the formation of micro-mechanical structures and related systems on a laminated substrate. More particularly, a micro-mechanical device and a...
7068220 Low loss RF phase shifter with flip-chip mounted MEMS interconnection  
A hybrid circuit phase shifter assembly of RF MEMS switch modules and passive phase delay shifter circuits uses a low loss, preferably flip-chip, interconnection technology. The hybrid circuit...
7057474 Adjustable delay transmission lines  
A transmission line includes a signal conductor and at least one varactor diode capacitively coupled to the signal conductor. The transmission line's signal path delay is a function of its shunt...
7053732 Multi-bit time delay adjuster unit for high RF applications and method  
A multi-bit time-delay adjuster with Radio Frequency (RF) MicroElectroMechanical (MEM) switches may be used in MultiCarrier Power Amplifiers (MCPAs) with a feed-forward linearization technique. The...
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...
7046104 Controlling a time delay line by adding and removing a fluidic dielectric  
A variable true time delay line ( 100 ) includes an RF transmission line ( 110 ) and at least one fluidic delay unit ( 108 ). The fluidic delay unit includes a fluidic dielectric contained in a...
7042309 Phase inverter and coupler assembly  
A circuit assembly may include one or more coupler sections, and may include a phase inverter and/or a phase shifter. A coupler section may include a phase inverter. A coupler may include first and...
7026891 Monolithic disc delay line  
In accordance with the invention, a delay line comprises a spirally coiled strip transmission line encapsulated within conductive ground discs. In an advantageous embodiment the delay line is a...
7026889 Adjustable antenna feed network with integrated phase shifter  
A device for feeding signals between a common line and two or more ports. The device including a branched network of feedlines coupling the common line with the ports. The feedlines have...
7015773 Electronic phase shifter with enhanced phase shift performance  
A varactor based phase shifter that increases phase shift range using a lower characteristic impedance between quadrature ports than is used at its input/output ports. The circuit makes use of a...
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...
6998937 Controlling a phase delay line by adding and removing a fluidic dielectric  
A variable phase delay line ( 100 ). The variable phase delay line ( 100 ) can include an RF transmission line ( 102 ) and a fluid channel ( 130 ) having a serpentine configuration. The fluid...
6985049 Switched coupler type digital phase shifter using quadrature generator  
A switched coupler type digital phase shifter using a quadrature generator is disclosed. A switched coupler type digital phase shifter includes: a coupling unit for receiving one input signal and...
6967539 Low phase-noise local oscillator and method  
An oscillator to generate a low phase-noise reference signal at an oscillation frequency includes a frequency generator to generate the reference signal responsive to a control signal, and a delay...
6961494 Optical waveguide device  
The attenuation from connectors to the interaction region of the light signal with the microwave can be reduced, and the bandwidth can be improved in an optical waveguide device, in which a space...
6958663 In-band group delay equalizer and distortion compensation amplifier  
An in-band group delay equalizer is formed in a simple circuit configuration so as to have a flat group delay characteristic over a wide frequency band without having a peak of group delay near...
6952148 RF delay lines with variable displacement fluidic dielectric  
A continuously variable true time delay line ( 100 ) and method for producing a time delay. The true delay line ( 100 ) includes an RF transmission line ( 110 ) and at least a first fluidic...
6950062 Method and structure for phased array antenna interconnect using an array of substrate slats  
A phased array antenna is formed from an array of apertures having walls containing phase shifter devices for phase shifting and beam steering a radiated beam of the phased array antenna. The phase...
6930568 RF delay lines with variable composition fluidic dielectric  
Method and apparatus for producing a variable delay for an RF signal. The method can include the step of propagating the RF signal along an RF transmission line, coupling a fluidic dielectric to...
6917162 Traveling wave tube  
A slow wave circuit ( 10, 110 ) of a traveling wave tube includes a three-dimensional conductive structure ( 30, 130 ). A dielectric film ( 36, 136 ) coats selected portions of the...
6906601 Variable phase shifter and a system using variable phase shifter  
A variable phase shifter and a system for the variable phase shifter are provided. The phase shifter includes fixed phase shift elements, active devices for amplifying the outputs of the fixed...
6900707 Photonic RF phase shifter with mitigated RF power fluctuation and devices incorporating the same  
A power balanced photonic RF phase shifter includes: a microwave drive; a phase controller operably connected to the microwave drive; and a linearizing arm connected in parallel with the microwave...
6876274 Variable phase delay by modifying a fluidic dielectric  
A variable phase delay line ( 110 ) includes an RF transmission line ( 111 ) and at least one fluidic delay unit ( 108 ). The fluidic delay unit includes a fluidic dielectric ( 130 ) contained in a...
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