Class 331/107G - Gunn-type bulk effect device oscillators

Subclass of Class 331 - Oscillators
No. of patents: 93
Last issue date: 06/05/2007

Number	Title	Issue Date
7227246	Matching circuits on optoelectronic devices An apparatus comprises a first substrate and a second substrate. The first substrate includes an optoelectronic device and a matching circuit. The second substrate includes a driver circuit. A frequency response of the optoelectronic device is changed by the matchin...	06/05/2007
7208814	Resistive device and method for its production A resistive device includes a resistive region of a semiconductor material that includes a first region and a second region, wherein the first region has a higher dopant concentration than the second region, and wherein a resistance-determining width of a current pa...	04/24/2007
7179329	Methods of hyperdoping semiconductor materials and hyperdoped semiconductor materials and devices Methods are disclosed for producing highly doped semiconductor materials. Using the invention, one can achieve doping densities that exceed traditional, established carrier saturation limits without deleterious side effects. Additionally, highly doped semiconductor ...	02/20/2007
7170126	Structure of vertical strained silicon devices A trench capacitor vertical-transistor DRAM cell in a SiGe wafer compensates for overhang of the pad nitride by forming an epitaxial strained silicon layer on the trench walls that improves transistor mobility, removes voids from the poly trench fill and reduces res...	01/30/2007
7113049	Device for generating oscillations in the high frequency range A device for generating electromagnetic oscillations in the HF range, in particular in the gigahertz range, using at least one Gunn element, in particular at least one Gunn diode. The device is designed to be attached to at least one printed-board-like electric or e...	09/26/2006
7095366	High-frequency oscillation apparatus, radio apparatus, and radar A high-frequency oscillation apparatus wherein an oscillation signal output from a voltage controlled oscillator (VCO) is transferred through a transfer line to a resonator and the resonator is excited. The resonator is coupled with a second transfer line and an RF ...	08/22/2006
7075378	High spectral purity microwave oscillator using air-dielectric cavity A high spectral purity microwave oscillator is provided. The Oscillator uses an air-dielectric cavity and employs the known carrier-suppression technique. In one embodiment, the oscillator employs a high-Q cavity to self-sustain an oscillating signal formed by feedi...	07/11/2006
7068118	Pulse modulator for nonradiative dielectric waveguide, and millimeter wave transmitter/receiver using the same A pulse modulator includes a circulator which comprises: two ferrite plates; a plurality of mode suppressors for transmitting therethrough an LSM mode electromagnetic wave while shutting off an LSE mode electromagnetic wave; and an impedance matching member mounted ...	06/27/2006
7049897	High frequency band oscillator In an oscillator used in a high frequency band such as the microwave band, the millimeter wave band, etc., an oscillation element and circuit components such as a resonator coupled to the oscillation element, etc., are provided inside a casing, the oscillation eleme...	05/23/2006
6911079	Method for reducing the resistivity of p-type II-VI and III-V semiconductors The resistivity of a p-doped III-V or a p-doped II-VI semiconductor material is reduced. The reduction of resistivity of the p-type III-V or a II-VI semiconductor material is achieved by applying an electric field to the semiconductor material. III-V nitride-based l...	06/28/2005
6744402	High-frequency diode oscillator and millimeter-wave transmitting/receiving apparatus An object of the present invention is to facilitate positioning of a metal member for mounting a high-frequency diode and of a dielectric strip, thereby remarkably improving control of oscillation characteristics and workability in production. The invention provides...	06/01/2004
6717480	Multielement oscillator employing higher mode planar resonator A multielement oscillator employing a higher mode planar resonator being provided with the planar resonator and a plurality of oscillating elements. The planar resonator has a substrate, a resonation circuit conductor provided on a first principal plane of the subst...	04/06/2004
6630870	High-frequency diode oscillator and millimeter-wave transmitting/receiving apparatus An object of the present invention is to facilitate positioning of a metal member for mounting a high-frequency diode and of a dielectric strip, thereby remarkably improving control of oscillation characteristics and workability in production. The inventi...	10/07/2003
6545552	Local oscillator using non-radiative dielectric waveguide Disclosed is a local oscillator utilizing an NRD guide applicable to a millimeter wave integrated circuits. A Gunn diode is buried in a bottom of a housing so that a heat generated from the Gunn diode is directly transferred to the housing and is rapidly ...	04/08/2003
6545553	Oscillator for generating microwave radiation, and method of assembling an oscillator An oscillator comprising an oscillator body having a waveguide and a substantially cylindrical bore intersecting the waveguide, and a package comprising a heat sink having a substantially cylindrical portion and an oscillatory semiconductor device support...	04/08/2003
6535072	Voltage controlled oscillator, voltage controlled oscillator device and radar device A voltage controlled oscillator, a voltage controlled oscillator device, and a radar device provided therewith which can detect when the oscillation frequency becomes uncontrollable. According to one embodiment, a Gunn or other oscillation device is conne...	03/18/2003
6512421	Gunn diode oscillator with NRD guide An oscillation circuit is constructed by providing a line and a Gunn diode on a dielectric substrate, and an oscillation signal as the fundamental frequency signal of an oscillator is injected into the Gunn diode through a DC bias line. By disposing a die...	01/28/2003
6445256	Oscillator and radio equipment The present invention provides a small-sized oscillator facilitating the adjustment of a resonance frequency, permitting mass productivity to be improved, sufficiently suppressing a fundamental wave, and permitting cost reduction, and provides radio equip...	09/03/2002
6380817	Oscillators with the multi-layer non-radiative dielectric waveguide structure The present invention relates to an oscillator with the multi-layer non-radiative dielectric waveguide structure, which is able to generate various frequencies through oscillator elements and resonators, built in a multi-space structure with non-radiative...	04/30/2002
6369662	Oscillator, dielectric waveguide device, and transmitter An oscillator, a dielectric waveguide device and a transmitter incorporating the same, wherein a special temperature-compensating circuit provides a temperature-compensated device with reduced size and cost, and greater productivity. In the oscillator, a ...	04/09/2002
6369663	NRD guide Gunn oscillator A Gunn diode which is formed by sequentially laminating a first semiconductor layer, an active layer and a second semiconductor layer onto a semiconductor substrate. The Gunn diode comprises first and second electrodes arranged on the second semiconductor...	04/09/2002
6362696	Device with a nonradiative dielectric waveguide with coupling gap A device with a nonradiative dielectric waveguide which operates in a microwave band or in a millimeter wave band. The device with a nonradiative dielectric waveguide is, for example, an oscillator, a circulator, a coupler or the like. The device has a pa...	03/26/2002
6300842	Arrangement for producing electrical oscillations The arrangement for producing electrical oscillations in a Giga hertz region has a Gunn element, a housing in which the Gunn element is accommodated and which has an electrically conductive housing cover, the Gunn element being in electrical contact with ...	10/09/2001
6232843	Plural coupled microwave oscillators providing phase shifted output signals A signal generator for producing a plurality of signals having the same frequency but a constant phase difference includes first and second cavity oscillators coupled to each other via an appropriate wall and coupling apertures. A first output signal is e...	05/15/2001
6218916	Electromagnetically coupling nonradiative dielectric waveguides A device with a nonradiative dielectric waveguide which operates in a microwave band or in a millimeter wave band. The device with a nonradiative dielectric waveguide is, for example, an oscillator, a circulator, a coupler or the like. The device has a pa...	04/17/2001
6147563	Coupled cavity oscillator producing output signals with a constant phase difference An improved method and system for generating quadrature phase shift keying signals for use in data transmission is provided. A pair of oscillators are slaved to the transmit frequency and produce two quadrature signal components with the same frequency bu...	11/14/2000
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 stabilised local oscillator (LO) frequency signal and a radi...	10/17/2000
6111265	Gunn diode having a graded aluminum gallium arsenide active layer and Gunn diode oscillator A Gunn diode includes a layered structure including at least a cathode layer, an anode layer, and an active region interposed between the cathode and anode layers, wherein at least a portion of the active region is an AlGaAs layer....	08/29/2000
6005450	Microwave oscillator having at least one adjustment pin A microwave oscillator includes a waveguide that is short-circuited on one side and a diode arranged therein, which receives its supply voltage by way of a coupling pin passed through a waveguide wall. At least one adjustment pin, extends into the wavegui...	12/21/1999
5969578	Waveguide oscillator having planar slotted guide structure A waveguide oscillator by means of which carrier waves can be generated in a waveguide. The waveguide oscillator takes the form of a planar slotted guide structure arranged in the waveguide approximately perpendicularly to the longitudinal axis of the wav...	10/19/1999
5825268	Device with a nonradiative dielectric waveguide A device with a nonradiative dielectric waveguide which operates in a microwave band or in a millimeter wave band. The device with a nonradiative dielectric waveguide is, for example, an oscillator, a circulator, a coupler or the like. The device has a co...	10/20/1998
5329257	SiGe transferred electron device and oscillator using same This invention is a three layer Six Ge1-x structure formed on a silicon substrate in which a thin, lightly doped Six Ge1-x layer is formed between two heavily doped Six Ge1-x layers. The in...	07/12/1994
5153533	Voltage controlled oscillator A voltage-controlled oscillator using planar microstrip technology and primarily for the 37 to 39.5 GHz frequency band comprises a strip-line resonator, a negative resistance device mounted adjacent the center of the resonator, respective variable capacit...	10/06/1992
5126696	W-Band waveguide variable controlled oscillator A W-band waveguide variable controlled oscillator incorporating a capacitively coupled Gunn diode and varactor diode arranged in such a manner that adverse environmental conditions do not deleteriously effect the stability of the output of the oscillator....	06/30/1992
5117204	Phase locked loop circuit By using an EIP source lock counter, a frequency of a Gunn oscillator is stabilized. This increases the frequency stability of a circuit. An oscillation output of the Gunn Oscillator is supplied to the EIP source lock counter, and a phase lock signal indi...	05/26/1992
5107229	Solid state oscillator for generating microwave signals A solid state oscillator which may be used as a microwave electronics teaching aid. The solid state oscillator is powered by a klystron power supply, and is interchangeable with a klystron. The solid state oscillator includes a circuit having inputs, thro...	04/21/1992
5059927	Microwave oscillator with reduced phase noise An oscillator operational in the millimeter wave and microwave range, including frequencies greater than 60 GHz, is provided with reduced phase noise by enhancing Q of the resonant circuitry by reactively terminating fundamental frequency oscillation and ...	10/22/1991
5019791	Millimeter wave oscillator with flicker (1/f) noise suppression Flicker (1/f) noise is suppressed in an oscillator by reducing oscillator voltage-frequency pushing to zero. A varactor (56) is incorporated in the resonator circuit and is biased with a tuning voltage setting the varactor to a capacitance value providing...	05/28/1991
4999587	Waveguide oscillator tunable through integrated varactor diode and coupling probe In a waveguide oscillator, a Gunn diode or other negative-resistance oscillator device (2) has a resonant cap (3) for coupling to the waveguide (1), and a tuning varactor diode (11) is coupled by a probe (13) to the electromagnetic filed in the vicinity o...	03/12/1991
4978928	High frequency, frequency multiplier using parallel Gunn diodes A Gunn oscillator having a plurality of Gunn elements connected in parallel etween a common anode and a common cathode. In one embodiment, the elements are separated by barrier layers that capacitively couple domain fields into adjacent elements thereby se...	12/18/1990

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Class 331/107G - Gunn-type bulk effect device oscillators