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8031014 |
Solid state terahertz radiation frequency multiplier
A nonlinear solid-state device useful for frequency conversion of electromagnetic radiation and in particular for harmonic generation, comprising a waveguiding electromagnetically distributed...
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8018290 |
Oscillator, transmitter-receiver and frequency synthesizer
An output terminal 6 is provided at the connecting point 5 between the collector terminal of a transistor 1 and an open-ended stub 4 by connecting the open-ended stub 4 to the collector terminal of...
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7498978 |
Radio frequency and microwave signals
A device for generating high powered Radio Frequency (RF) or microwave signals comprising a fast rise-time video pulse generator, a modulator to modify the generated UWB pulses by gyromagnetic...
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7388450 |
Packaged electronic components for producing a sub-harmonic frequency signal at millimetric frequencies
The invention relates to millimetric packaged electronic components for applications at high frequencies greater than 45 GHz. According to the invention, to facilitate the design of a system...
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7236293 |
Frequency converter using optical excitation surface plasma and its method
A frequency converter having no solid-state devices having nonlinear characteristics and no complex resonator structure and operable in a wide frequency range from microwave frequencies to...
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6998941 |
Frequency multiplier
The invention can be used for telecommunications, measuring and other devices in order to produce stable superhigh frequency signals. An IMPATT diode (4) operating in the cascade break-down mode...
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6577213 |
Method and apparatus for multiplying a frequency of an electromagnetic wave
A ferromagnetic film, which has an inherent resonant frequency, is disposed in a cavity resonator. An electromagnetic wave, which has an input frequency equal to the resonant frequency of the...
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6549099 |
Electrically-coupled mechanical band-pass filter
The present invention provides an electromechanical band-pass filter for use in PIRM memory arrays utilizing miniature micro-movers on a single substrate. The band-pass filter includes first and...
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6529051 |
Frequency multiplier without spurious oscillation
A damping resistance 20 is connected between the drain D of an FET 10 and a first end T3 of an output transmission line 13, and a damping resistance 21 is connected between the drain D of an FET 11...
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6476692 |
Distributed balanced frequency multiplier
A branching section provides a fundamental input wave signal SI of a frequency f to the gate of a FET 15A having a grounded source and the source of a FET 15B having an AC grounded gate, and a...
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6476694 |
Non-radiative dielectric waveguide circuit positioned between two metal plates which are multi-layered for different sizes of spaces
A circuit with non-radiative dielectric waveguides held between two parallel metal plates which are multi-layered. Since the circuit has different heights of spacers between the plates owing to...
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6388546 |
Method and apparatus for cascading frequency doublers
This invention provides a multistage frequency multiplier having a plurality of frequency doublers. Each doubler incorporates a three-terminal transistor device and is connected to an adjacent...
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6384691 |
Millimeter wave low phase noise signal source module
A high frequency signal source module includes a housing have a high-Q dielectric puck and a transition enclosure employing an antipodal finline transition. A circuit module connected to the high-Q...
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6369675 |
Frequency multiplier capable of taking out efficiently and stably harmonics higher than fourth order
One end of a first transmission line is connected to the collector of an HBT with the base connected to an output terminal of an input-side matching circuit and with the emitter grounded, and one...
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6346859 |
Microwave amplifier with reduced beat noise
A microwave amplifier includes a bias circuit including a micro-strip line and a capacitor for biasing an output line of a FET with a DC voltage, and a filter block implemented by a low-pass-filter...
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6297716 |
Q-switched cavity multiplier
A switched frequency multiplier receives pulses of pump energy as an input signal. The input signal is transferred to within a housing having a first cavity tuned to the frequency of the pump...
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6265934 |
Q-switched parametric cavity amplifier
A Q-switched parametric cavity microwave amplifier has input and output ports for receiving an input signal and producing a switched amplified output signal. A pump signal, preferably at a harmonic...
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6262641 |
Frequency multiplier, dielectric transmission line device and radio device
In a dielectric transmission line device and a radio device using a dielectric transmission line device, an output matching circuit is constructed in a simplified fashion and an output signal of a...
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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...
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6073002 |
Mixer circuit and communication device using the same
A mixer circuit (230) comprises a double balanced mixer (370) including a first pair of transistors (Q3, Q4) and a second pair of transistors (Q5, Q6) and a differential amplifier (330) including a...
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6066997 |
Frequency multiplier with fundamental wave reflection
A frequency multiplier is constructed to input an input signal to a transistor through an input matching circuit and to output a multiplied output signal from the transistor through a reflecting...
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6043926 |
Electro-optical broadband microwave frequency shifter
The broadband microwave frequency shifter is an electro-optical device that accomplishes frequency shifting, or translation by the use of serrodyning or mixing techniques. A first optical signal is...
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6031583 |
High frequency video isolation system
A high frequency video isolation circuit comprising: a modulating signal source for producing a modulating signal having a frequency of several hundred megahertz; an input multiplier for...
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5886595 |
Odd order MESFET frequency multiplier
An odd order MESFET frequency multiplier which outputs a desired odd harmonic of a fundamental tone. The frequency multiplier includes a multiplier stage with a MESFET having a harmonic response...
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5880647 |
High frequency signal generator using superconducting quantum interference device
A high frequency signal generator using a superconducting quantum interference device is disclosed including: a magnetic signal generator for supplying a low frequency magnetic signal to a...
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5767726 |
Four terminal RF mixer device
A four terminal multiplication circuit capable of mixing up to three input signals. The circuit includes a MOS transistor having gate, source, drain and back-gate terminals. When the circuit is...
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5731752 |
Microwave signal frequency multiplier
A microwave signal frequency multiplier is used to produce a harmonic signal derived from a microwave pump signal. In a selected embodiment, a Ka pump signal is converted to a W band microwave...
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5475349 |
Frequency multipliers using diode arrays
A frequency multiplier in which one or more varactors each include arrays of Schottky barrier diodes combined in rows of parallel-connected diodes and columns of series-connected diodes. The arrays...
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5422613 |
Varactor diode frequency multiplier
An integrated varactor diode frequency multiplier assembly including a first varactor diode frequency multiplier circuit having a non-stepped waveguide output, a second varactor diode frequency...
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5422594 |
Multi-channel carrier wave generator
A multi-channel carrier wave generator includes a signal source capable of generating a carrier wave having a frequency, a first input-match diode circuit receiving the carrier wave to...
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5406237 |
Wideband frequency multiplier having a silicon carbide varactor for use in high power microwave applications
The invention provides frequency multiplier circuitry which may be used in the output section of high power microwave systems to efficiently provide higher output frequencies. Generally, one...
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5392014 |
Frequency multiplier
An input signal specified by an input frequency is divided by an out-of-phase type input hybrid coupler, into two divided signals with regard to the power of the input signal, where the divided...
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5220688 |
Frequency translating circuit with multiple stages using common local oscillator
A multi-stage mixer circuit has a chain of mixer stages that each have a non-linear mixer element that receives a signal to be translated and a local oscillator signal. Each stage also has a filter...
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5113094 |
Method and apparatus for increasing the high frequency sensitivity response of a sampler frequency converter
A method and apparatus comprising a sampler frequency converter having a first and a second diode. A local oscillator having a frequency FLO, a step recovery diode and a balun transformer are used...
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5077546 |
Low phase noise frequency multiplier
A low phase noise frequency multiplier is disclosed for multiplying a sine wave obtained from a low phase noise crystal oscillator to higher frequencies than can be directly obtained from a crystal...
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5043609 |
UHF band transistor mixer circuit
A UHF band transistor mixer circuit includes a frequency converting transistor to a base of which a received high-frequency signal and a local oscillation signal are applied. A collector of the...
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4996505 |
Frequency triplicator for microwaves
Frequency triplicator for microwaves having frequencies above about 30 GHz, for example 70 GHz, comprising a non-linear element of a weakly doped semiconductor material, in particular n-Si with a...
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4973140 |
Reentrant traveling-wave single sideband optical modulator
A novel single sideband electro-optic modulator is characterized by a reentrant waveguide structure. The reentrant waveguide structure allows for a factor of four enhancement of conversion...
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4968959 |
Microwave frequency divider
An analog type of microwave frequency divider for dividing frequency by two. It comprises a common emitter transistor (8) and a feedback loop comprising a filter (9, 11) and a phase-adjusting...
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4931921 |
Wide bandwidth frequency doubler
A single-transistor frequency doubler uses an elliptical filter on the collector of the transistor to improve the bandwidth of the doubler. Bandwidths in excess of thirty five percent having...
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4845389 |
Very high frequency mixer
A mixer of the two-transistor type (T1, T2) arranged in series by a source S2 and a drain D1. A Gate G1 receives a radio frequency signal RF and a gate G2 a local oscillator signal L0. Matching...
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4806891 |
Broadband signal frequency multiplier apparatus using dielectric resonator means
A frequency multiplier circuit is created by using a step recovery diode along with its signal source and reactive circuit to produce a comb of frequencies. This comb of frequencies is then applied...
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4789840 |
Integrated capacitance structures in microwave finline devices
A finline structure comprises a dielectric substrate-mounted circuit disposed within a waveguide having on the substrate integrated distributed capacitance elements at least partially formed by...
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4764741 |
Voltage and high frequency signal supply for a diode mounted in a waveguide
Circuit device including: a waveguide for transmitting electromagnetic waves with an electric field extending in a selected direction; a diode mounted in the waveguide; a coaxial line connected for...
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4754244 |
Distributed balance frequency multiplier
A distributed balance frequency multiplier has a transmission line that is configured using lumped elements having connection points for inputting signals. Connected to each connection point is the...
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4749949 |
Self biasing diode microwave frequency multiplier
A microwave frequency multiplier employs a first diode and a second diode each coupled in anti-parallel relationship across a signal input of a finline structure, each of the diodes being...
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4734591 |
Frequency doubler
A frequency doubler is disclosed in which an input signal is supplied to the respective gates of first and second field effect transistors with a phase difference corresponding to a one half wave...
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4660006 |
Radio frequency multiplier producing an even harmonic output
A radio frequency multiplier circuit includes a first plurality of non-linear devices, each device having an input electrode and an output electrode. The input electrode of each one of the first...
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4642590 |
Frequency multiplier having open and short circuited lines resonating a multiplied output frequency
Multipliers for high frequencies having an input and an output. The input is connected via a terminating impedance to the input of a short-circuited transmission line having a length λ/4, where λ i...
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4636758 |
Frequency multiplier for millimeter waves having means for adjusting harmonic frequency
A frequency multiplier according to the invention comprises a coaxial input, an elastic device constituted by two parts sliding within one another, the outer part having a flexible metal bellows...
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