Class 330/5 - WITH SOLID ELEMENT WAVE PROPAGATING AMPLIFYING DEVICE

Subclass of Class 330 - Amplifiers
Definition: Subject matter wherein the amplifying device comprises a
No. of patents: 27
Last issue date: 08/12/2008

Number	Title	Issue Date
7411445	Phonon laser A phonon laser pumped by a thermal gradient, the phonon laser having a coherent phonon pumping media, a heat source and a heat sink. The pumping media includes an array of micro resonators and a thermal phonon emitting media. ...	08/12/2008
7349678	Circuit arrangement for transmitting and receiving radio signals simultaneously A circuit arrangement for transmitting and receiving radio signals includes an amplification device with an output for transmitting signals, an input for receiving signals and a supply line, and an antenna for transmitting and receiving signals. The antenna is conne...	03/25/2008
7265360	Magnetron anode design for short wavelength operation An electromagnetic radiation source is disclosed. The electromagnetic radiation source includes an anode having a first conductor, a second conductor positioned relative to the first conductor, a plurality of pole pieces coupled to at least one of the first conducto...	09/04/2007
7215064	Piezoelectric switch for tunable electronic components A piezoelectric switch for tunable electronic components comprises piezoelectric layers, metal electrodes alternated with the layers and contact pads. Cross voltages are applied to the electrodes, in order to obtain an S-shaped deformation of the switch and allow co...	05/08/2007
7161791	Variable capacitance membrane actuator for wide band tuning of microstrip resonators and filters A device for varying the capacitance of an electronic circuit is disclosed. The device comprises a flexible membrane located above the electronic circuit, a metal layer connected to the flexible membrane, and bias circuitry located above the membrane. Variation of t...	01/09/2007
7135717	Semiconductor switches and switching circuits for microwave The purpose of the present invention is to provide a small-sized switch attaining high isolation of not less than 80 dB, maintaining low insertion loss also in high frequencies not less than 60 GHz. A semiconductor switch according to the present invention utilizes ...	11/14/2006
7084044	Optoelectronic device and method of manufacture thereof The present invention provides an optoelectronic device and a method of manufacture thereof. In one embodiment, the method of manufacturing the optoelectronic device may include creating a multilayered optical substrate and then forming a self aligned dual mask over...	08/01/2006
6295508	Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system and method An automatic pole-zero (APZ) adjustment circuit for an ionizing radiation spectroscopy system. An amplitude histogram of an acquired spectrum is obtained. The shape of a selected peak from the amplitude histogram is analyzed for peak shape distortion indi...	09/25/2001
6194774	Inductor including bonding wires An inductor includes a semiconductor substrate, pairs of pads formed on the semiconductor substrate at predetermined intervals with the pads in a pair spaced apart a predetermined distance, bonding wires connect the pads constituting the corresponding pai...	02/27/2001
6028486	Method and apparatus for reducing power dissipation in multi-carrier amplifiers A method and apparatus are provided for reducing power dissipated by an amplifier circuit such as a line driver in a Digital Subscriber Line (DSL), a power amplifier in a radio environment, etc. The power supplied to the amplifier circuit changes dependin...	02/22/2000
5001483	Digital to analog converter for an acoustic charge transport device A digital-to-analog converter for an acoustic charge transport (ACT) device that permits an ACT device to directly accept digital inputs. The digital-to-analog converter includes a plurality of digital-to-analog converter circuits that convert respective ...	03/19/1991
4847565	Solid state electromagnetic wave amplifier A solid state electromagnetic wave amplifier is provided with confinement structures for the prevention of transverse carrier wave diffusion into the amplifier body. The carrier waves are confined with a non-metallic semiconductor layer sandwiched between...	07/11/1989
4739383	Optical detector and amplifier based on tandem semiconductor devices If a semiconductor device is prepared so that it contains a photoconductive region in electrical series with a photovoltaic region, (i.e., a Schottky barrier or p-n junction) it can function as an optical amplifier and detector. When weak ac light plus an...	04/19/1988
4410833	Solid state magnetron A magnetron in which the space between the anode and cathode contains a h mobility semiconductor. The structure is non-cylindrically symmetric because the anode and cathode are placed on top of the semiconductor. The electrons are injected into the subst...	10/18/1983
4156203	Negative resistance element circuit combinations Occurrence of high field domain in the conventional Gunn diode is prevented by covering a solid body such as a semiconductor element partially or wholly by a dielectric member or by a control element such as a metallic layer coupled reactively with the so...	05/22/1979
4152658	Resistive film stabilization of coplanar AMP device Undesirable odd mode oscillations in coplanar active medium propagation (AMP) devices are suppressed, and transmission of the desired even mode signal is enhanced by placing a planar resistance element beneath the substrate supporting the Gunn epitaxial l...	05/01/1979
4151476	Magnetic bubble traveling wave amplifier A device is disclosed for amplifying electromagnetic waves propagating al a meander line slow wave structure by means of magnetic cylindrical domains or bubbles which are propagating at substantially the same velocity as the RF wave in an adjacent platel...	04/24/1979
4132956	Circuit arrangement for amplifying high frequency electromagnetic waves A circuit for amplifying high frequency electromagnetic waves composed of a Josephson junction constituting an electromagnetic high frequency line along which electromagnetic waves can propagate at a signal frequency and at least one idler frequency, the ...	01/02/1979
4099132	Negative differential mobility amplifier for a progressive wave A negative differential mobility amplifier with a layer of semiconductor material of negative differential mobility. Two electrodes formed by two metallic combs are disposed on the free surface of the layer of semiconductor material. Overlapping fingers o...	07/04/1978
4090155	Transmission line for electromagnetic wave A transmission line is disclosed which comprises a conductive layer, a resistive semiconductor layer disposed on the conductive layer and a blocking electrode disposed on the resistive semiconductor layer. By applying a biasing voltage between the blockin...	05/16/1978
4085377	Microwave frequency discriminator comprising a one port active device A microwave frequency discriminator using a one port active device amplifier including a circulator for coupling an input RF signal of substantially constant power level into the amplifier and an output RF signal out from the amplifier. The discriminator ...	04/18/1978
4050027	Optical signal amplifier Amplification of optical signals propagating through a first waveguide is achieved by modulation of high intensity light propagating through an elastomeric waveguide responsive to said signals, the modulation of the high intensity light being accomplished...	09/20/1977
3996529	Varactor tuning apparatus for a strip transmission line device A varactor tuning apparatus for tuning a strip transmission line radio frequency device, wherein the device having predetermined operating characteristics includes an active element such as an avalanche diode and a resonant conductive strip section. The t...	12/07/1976
3975690	Planar transmission line comprising a material having negative differential conductivity A planar transmission line comprising a Gunn effect semiconductor having an epitaxial portion as the propagating medium amplifies and switches r.f. signals and is not transit time limited in the direction of propagation. The spacing between the transmissi...	08/17/1976
3974459	Millimeter waveguide oscillator and amplifier structure Disclosed is a millimeter wave waveguide structure adapted for operation with negative resistance devices, such as solid state avalanche breakdown diodes, at frequencies up to about 170 GHz or higher. A central portion of the structure is formed by a cyli...	08/10/1976
3953878	Constant temperature control for transferred electron devices Two transferred electron devices are provided in a thermally coupled relationship. One transferred electron device is operated above threshold voltage as an amplifier or oscillator, while the other transferred electron device is operated below threshold v...	04/27/1976
3946336	Microwave solid state circuit employing a bipolar transistor structure This microwave circuit incorporates a transistor structure that provides either a two port amplifier or an injection frequency locked oscillator. This circuit eliminates circulators employed with Gunn and Impatt diode amplifiers and injection frequency lo...	03/23/1976

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Class 330/5 - WITH SOLID ELEMENT WAVE PROPAGATING AMPLIFYING DEVICE