|
Match
|
Document |
Document Title |
|
|
RE40900 |
Amplifier circuit
An amplifier circuit for amplifying an input signal to generate an amplifier output signal incorporates a cascaded series of reflection amplifiers arranged along a signal path and operative to...
|
|
|
7579912 |
Method and system for multiple tuner application using a low noise broadband distribution amplifier
An active splitter circuit arrangement includes a first amplification module having a number of first input ports and first output ports. The first amplification module is configured to provide...
|
|
|
7558548 |
Method and apparatus for receiving and/or down converting high frequency signals in multi mode/ multi band applications, using mixer and sampler
A method and apparatus to receive and down convert high frequency radio signals to low frequency or base band frequency is disclosed. A mixer used with a sampler produces a multi mode/multi band...
|
|
|
7512394 |
Wideband up-conversion mixer
An up-conversion mixer includes a first and a second hybrid couplers and a first and a second traveling-wave mixers is disclosed. The first hybrid coupler receives an input intermediate frequency...
|
|
|
7509112 |
Wideband image rejection mixer
An image rejection mixer including a first and a second hybrid couplers and a first and a second traveling-wave mixers is disclosed. The first hybrid coupler divides an input radio frequency (RF)...
|
|
|
7283835 |
Method of providing extended group call service
A method of providing a group call service in a radio network is provided. A BS, which does not cover a GCA but is located in a radio network near to the GCA, generates extended group call service...
|
|
|
7095989 |
Frequency translating devices and frequency translating measurement systems with DC bias added to a mixer diode
A frequency translating device (FTD) includes at least one mixer diode connected to down-convert a radio frequency (RF) to an intermediate frequency (IF) and to up-convert an IF to an RF and a...
|
|
|
7013122 |
Ultra high isolation mixer
A double balanced mixer for mixing an RF input signal with a local oscillator signal to provide at an output an intermediate frequency signal with high isolation over a wide frequency range. The...
|
|
|
6799028 |
Mobile radio receiver with integrated broadcast receiver that fills broadcast gaps during mobile band communication
In order to simplify the circuitry upon integration of a mobile radio receiver in a terminal for mobile communication, the invention proposes the use of a receiving section in which at least one...
|
|
|
6799027 |
Amplifier circuit
An amplifier circuit for amplifying an input signal to generate an amplifier output signal incorporates a cascaded series of reflection amplifiers arranged along a signal path and operative to...
|
|
|
6766157 |
Reducing LO leakage in a direct conversion receiver quadrature stage
An LO leakage canceller for a direct conversion receiver is disclosed. The canceller includes an RF input stage operating to provide at least two input signals, a local oscillator, an in-phase...
|
|
|
6650178 |
N-port direct receiver
The present invention relates to n-port junction devices for processing modulated digital RF signals, n being an integer larger than 3, the n-port junction device comprising two RF input ports ( 4,...
|
|
|
6591093 |
Circuit and method for frequency translation
A mixer circuit ( 21 ) includes first ( 31 ) and second ( 32 ) transconductance amplifiers, a switching circuit ( 34 ), and an oscillator processing stage ( 36 ). The transconductance amplifiers (...
|
|
|
6539215 |
Down converter and demodulator using a three port junction
A down converter for RF signals comprises one three port junction ( 7 ) having one input port six for modulated digital RF signals and two output ports ( 8, 9 ). The output ports ( 8, 9 ) are...
|
|
|
6510314 |
Mixer circuit with output stage for implementation on integrated circuit
An output stage of a double balanced mixer having a first intermediate port and a second intermediate port includes an operational amplifier, an impedance and first and second current source...
|
|
|
6389274 |
Subharmonic frequency converter for applications to millimetric radio waves
A frequency converter that includes a first low-pass filter and a band-pass filter with a first end operatively connected to a first end of the first low-pass filter. The frequency converter also...
|
|
|
6208214 |
Multifunction high frequency integrated circuit structure
A multifunction high frequency integrated circuit structure and circuit configuration includes a resonator or oscillator circuit coupled to a buffer amplifier by way of a stripline coupler. The...
|
|
|
6205324 |
Broadband double-balanced frequency mixer
The invention provides a broadband double-balanced mixer capable of operating across a range of frequencies from millimeter to microwave. The mixer includes a Wilkinson type splitter.
|
|
|
6198912 |
Frequency converter for the application on millimetric radio waves
The following description regards a frequency converter (1) for applications on millimetric radio waves. The circuit structure comprises a diplexer filter realized in thin film on an alumina layer...
|
|
|
6160425 |
Frequency converter
A frequency converter has both an up-conversion and a down-conversion circuit in a compact circuit design. The converter is operated as an upconverter by activating a first control FET, and is...
|
|
|
6133795 |
Oscillator circuit
A stabilised voltage controlled oscillator circuit comprises a closed loop circuit containing a voltage controlled oscillator (34), a local oscillator (40) and a harmonic mixer (38) that mixes a...
|
|
|
6094349 |
Electrical device having a printed-circuit board and method for assembling the device
An electrical device has a printed-circuit board secured to a cover of the electrical-device housing, as well as a heat-dissipation mat arranged on a housing wall. The cover secured to the housing,...
|
|
|
6074839 |
Transforming growth factor αHI
The present invention discloses transforming growth factor alpha HII polypeptides and polynucleotides encoding such polypeptides. Also provided is a procedure for producing such polypeptides by...
|
|
|
6011966 |
Mixer input circuit with Imbalance-balance circuit having distributed constant line
A mixer input circuit for converting a signal from a tuning section of an unbalanced type into a balanced signal and outputting the signal. In the mixer input circuit, an RF signal from an input...
|
|
|
6011146 |
Altered major histocompatibility complex (MHC) determinant and methods of using the determinant
An altered MHC class I determinant comprises α 1 , α 2 , α 3 , β 2 -microglobulin (β 2 m) polypeptide domains encoded by a mammalian MHC class I locus in which the α 3 domain is covalently...
|
|
|
5949297 |
Balanced modulator
A balanced modulator has a pair of diodes, a plurality of line patterns including a balance-to-unbalance converter, the line patterns including lines extending toward and connected to the diodes,...
|
|
|
5872485 |
Dielectric line waveguide which forms electronic circuits
An amplifying circuit is formed by a combination of a dielectric line waveguide and a semiconductor device. Two electrically conductive plates are provided substantially parallel to each other. Two...
|
|
|
5790945 |
Resonator for coupling intermediate frequency signals from a radio frequency mixer
A dumbbell shaped resonator efficiently couples IF signals from short transmission lines to an output transmission line at a radio frequency (RF) mixer's IF output port. The RF mixer uses short...
|
|
|
5754951 |
Microwave mixing circuit and a down converter comprising it
A microwave mixing circuit of a small size for selecting a signal to be received out of plural microwave signal inputs, and converting it to an intermediate frequency signal, and a down converter...
|
|
|
5732343 |
Microwave harmonic mixer circuit of super conducting quantum interference device
Microwave harmonic mixer circuit of SQUID(Superconducting Quantum Interference Device) is disclosed, in which a magnetic flux to voltage conversion characteristics of SQUID is used for generating a...
|
|
|
5678226 |
Unbalanced FET mixer
A unbalanced mixer capable of operation in the absence of DC bias is disclosed herein. The mixer includes an input or local oscillator (LO) port for receiving an input signal. A first transistor...
|
|
|
5606737 |
Oscillator mixer and a multiplier mixer for outputting a baseband signal based upon an input and output signal
In a structure adopted for an FM-CW radar, a corner waveguide for connecting each of transmission and reception antennas to a sensor unit is integrated with a sensor unit case. In a waveguide/strip...
|
|
|
5587690 |
Ring resonator oscillator usable in frequency synthesizers and communication apparatus
A first oscillator includes: a ring resonator; an oscillation circuit having a negative resistance active circuit coupled to a first point on the ring resonator for oscillating at an oscillation...
|
|
|
5584064 |
Converter circuit for satellite broadcasting receivers having mixer isolation
A horizontally polarized wave signal is amplified in low-noise by two first LNAs connected in series to each other. The resulting low-noise amplified signal is entered into a first high electron...
|
|
|
5574409 |
Apparatus and method for adjusting microwave BPSK modulator and mixer
Microwave two-phase modulator and mixer each comprising a balance/unbalance transformer section to which a microwave signal is applied; a synthetic/branching line section which is connected to the...
|
|
|
5517687 |
Subharmonic image rejection and image enhancement mixer
A subharmonic image rejection and image enhancement mixer for mixing millimeter wavelength signals using a low conversion loss technique is described. A local oscillator frequency from an external...
|
|
|
5504465 |
Microwave modulator having adjustable couplers
A multifunction microwave modulator circuit has an input signal splitter to provide two equal amplitude signal components. A phase quadrature relationship between the two signal components is...
|
|
|
5493719 |
Integrated superconductive heterodyne receiver
A high frequency receiver detects and downconverts 50-1,000 GHz radio frequency signals using a receiver consisting of a lens and planar antenna, pre-amplifier, mixer, local oscillator, and...
|
|
|
5465419 |
Arrangement for frequency conversion of an input signal with an oscillator signal to form an intermediate frequency signal
An arrangement for frequency conversion of an input signal having a frequency f 1 with an oscillator signal having a frequency f 2 to form an intermediate frequency signal of frequency f 3 has a...
|
|
|
5416449 |
Modulator with harmonic mixers
An improved modulator circuit for mixing a modulation signal with a carrier signal includes first and second harmonic mixers which are operative to produce modulated output signals at an output...
|
|
|
5345194 |
FET having two gate bonding pads for use in high frequency oscillator
A FET comprising two or more gate pads or terminals, and a reflection type oscillator including the above-mentioned FET. In this oscillator, a dielectric resonator is connected through a coupling...
|
|
|
5266963 |
Integrated antenna/mixer for the microwave and millimetric wavebands
A microwave/millimetric receiver of the kind in which a dielectric lens focusses incoming radiation on to an integrated antenna/mixer supported by a dielectric substrate. In one embodiment the...
|
|
|
5263198 |
Resonant loop resistive FET mixer
A mixer includes a local oscillator (LO) matching network having an LO input port, an RF matching network also having an input port and an IF filter which provides an IF output from the mixer. A...
|
|
|
H001081 |
Monolithic millimeter-wave image guide balanced mixer
A monolithic millimeter wave balanced mixer in which two Schottky barrier odes receive combined power from. Two Schottky barrier diodes receive combined power from an RF source and local oscillator...
|
|
|
5106826 |
System for transmitting and/or receiving electromagnetic radiation employing resonant cavity including high T.sub.c superconducting material
Systems for transmitting and/or receiving electromagnetic signal radiation are disclosed. The inventive systems are distinguished from previous such systems in that each includes at least one...
|
|
|
5020149 |
Integrated down converter and interdigital filter apparatus and method for construction thereof
An integrated down converter and interdigital filter apparatus having a down converter and a number of interdigital filters mounted on the same printed circuit board and installed in the watertight...
|
|
|
5008956 |
Interdigital local oscillator filter apparatus
An integrated local oscillator interdigital filter apparatus in a down converter is mounted on the same printed circuit board. The housing of the interdigital filter is cut from sheet metal, with a...
|
|
|
5006811 |
Dual quadrature frequency converter
A method and apparatus for modulating or demodulating a radio frequency (RF) signal which incorporates a pair of quadrature couplers. In demodulating an RF signal, an LO signal and the RF signal...
|
|
|
4994755 |
Active balun
A double balun circuit is provided by connecting two pairs of circut types. The first circuit, a distributed divider circuit, includes first and second pluralities of field effect transistors, a...
|
|
|
4980925 |
Monopulse first detector array
In a millimeter wave monopulse first detector array for use in seeker applications in a guided missile employing quasi-optical, or Gaussian beam, signal transmission, a first detector is shown to...
|