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Class Information
Number: 330/277
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including field effect transistor
Description: Subject matter wherein a field effect transistor (FET) is utilized in the amplifier circuit.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
5038113 Nonlinearity generator using FET source-to-drain conductive path Aug. 6, 1991
5034702 Amplifying circuit including a bias circuit for independently determining a drain current and a drain voltage Jul. 23, 1991
5032799 Multistage cascode radio frequency amplifier Jul. 16, 1991
5029298 Transmitter circuit Jul. 2, 1991
5029190 Output circuit having high charge to voltage conversion gain Jul. 2, 1991
5028879 Compensation of the gate loading loss for travelling wave power amplifiers Jul. 2, 1991
5027080 Source follower light reception circuit Jun. 25, 1991
5027082 Solid state RF power amplifier having improved efficiency and reduced distortion Jun. 25, 1991
5025226 High-gain low-noise amplifier Jun. 18, 1991
5023567 Stability-compensated operational amplifier Jun. 11, 1991
5021743 Biasing networks for matrix amplifiers Jun. 4, 1991
5017887 High frequency IC power amplifier May. 21, 1991
5017886 RF power combiner using baluns May. 21, 1991
5015968 Feedback cascode amplifier May. 14, 1991
5012203 Distributed amplifier with attenuation compensation Apr. 30, 1991
5010304 Cryogenically-cooled radio-frequency power amplifier Apr. 23, 1991
5010305 Microwave integrated circuit Apr. 23, 1991
5008633 Cross-fed FET power-chip Apr. 16, 1991
4996499 Amplitude stabilized oscillator amplifier Feb. 26, 1991
4994755 Active balun Feb. 19, 1991
4994773 Digitally controlled monolithic active phase shifter apparatus having a cascode configuration Feb. 19, 1991
4992752 Method and apparatus for broadband impedance matching Feb. 12, 1991
4990973 Method of producing an MMIC and the integrated circuit produced thereby Feb. 5, 1991
4987382 Microwave integrated circuit having a level shift circuit Jan. 22, 1991
4987384 High frequency amplifier Jan. 22, 1991
4985642 High-frequency circuit having a loaded field-effect transistor Jan. 15, 1991
4983929 Cascode current mirror Jan. 8, 1991
4978925 Unity-gain CMOS/SOS zero-offset buffer Dec. 18, 1990
4975659 Amplifier package using vertical power transistors with ungrounded common terminals Dec. 4, 1990
4973918 Distributed amplifying switch/r.f. signal splitter Nov. 27, 1990
4970471 Gallium arsenide class AB output stage Nov. 13, 1990
4965535 Multiple speed oscillator Oct. 23, 1990
4952885 MOS stage with high output resistance particularly for integrated circuits Aug. 28, 1990
4947136 Variable gain distributed amplifier Aug. 7, 1990
4947135 Single-ended chopper stabilized operational amplifier Aug. 7, 1990
4947220 Yoked, orthogonally distributed equal reactance amplifier Aug. 7, 1990
4943785 Controllable AC voltage amplifier Jul. 24, 1990
4943784 Frequency stable digitally controlled driver circuit Jul. 24, 1990
4937476 Self-biased, high-gain differential amplifier with feedback Jun. 26, 1990
4933646 Field effect transistor limiter circuitry Jun. 12, 1990
4929912 Current mirror circuit, and video output amplifier circuit provided with the current mirror circuit May. 29, 1990
4929986 High power diamond traveling wave amplifier May. 29, 1990
4929913 GaAs focal plane array readout May. 29, 1990
4918401 Step adjustable distributed amplifier network structure Apr. 17, 1990
4914728 Wideband MMIC active quadrature hybrid Apr. 3, 1990
4912430 Current source as a microwave biasing element Mar. 27, 1990
4912423 Chopper-stabilized operational transconductance amplifier Mar. 27, 1990
4906943 Differential operational amplifier with common mode feedback Mar. 6, 1990
4901032 Digitally controlled variable power amplifier Feb. 13, 1990
4897613 Temperature-compensated circuit for GaAs ECL output buffer Jan. 30, 1990

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