Patents-Review.com
ClassID:

219227 ⎘

H03F3/1935 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices with junction-FET devices

Recent Application in this class:
#1
20260045920
2026-02-12

COMPOUND SEMICONDUCTOR AMPLIFIER AND CIRCUIT MODULE

 #2
20250096779
2025-03-20

FILTER CIRCUITRY AND CIRCUITRY COMPRISING THE SAME

 #3
20230216454
2023-07-06

CURRENT CONTROL CIRCUIT, BIAS SUPPLY CIRCUIT, AND AMPLIFIER DEVICE

 #4
20230118374
2023-04-20

Amplifier with low component count and accurate gain

 #5
20210175863
2021-06-10

Systems and methods for split-frequency amplification

 #6
20210119029
2021-04-22

Monolithic microwave integrated circuits having both enhancement-mode and depletion mode transistors

 #7
20210075381
2021-03-11

Systems and methods for split-frequency amplification

 #8
20200373888
2020-11-26

Power amplifier system

 #9
20200266775
2020-08-20

Amplifier for reusing current by using transformer and method thereof

 #10
20200235708
2020-07-23

Power amplifier and impedance adjustment circuit

 #11
20200186108
2020-06-11

Multistage amplifier

 #12
20200177133
2020-06-04

Detection circuit, corresponding device and method

 #13
20200127622
2020-04-23

Power amplifier circuit

 #14
20200091879
2020-03-19

Power amplification system with reactance compensation

 #15
20200066892
2020-02-27

Monolithic microwave integrated circuits having both enhancement-mode and depletion mode transistors

 #16
20190341887
2019-11-07

Reconfigurable low-noise amplifier (LNA)

 #17
20190312557
2019-10-10

WIDE-BAND AMPLIFIERS USING CLIPPER CIRCUITS FOR REDUCED HARMONICS

 #18
20190149102
2019-05-16

pHEMT switch circuits with enhanced linearity performance

 #19
20190036499
2019-01-31

Power amplifier harmonic matching network

 #20
20180375543
2018-12-27

BICMOS-based transceiver for millimeter wave frequency applications

 #21
20180323758
2018-11-08

Power amplification system with reactance compensation

 #22
20180294780
2018-10-11

Wide-band amplifiers using clipper circuits for reduced harmonics

 #23
20180138873
2018-05-17

Cascode power amplifier stage using HBT and FET

 #24
20180091099
2018-03-29

Reconfigurable low-noise amplifier (LNA)

 #25
20180090577
2018-03-29

Compound semiconductor device including diffusion preventing layer to suppress current collapse phenomenon, method of manufacturing compound semiconductor device, power supply unit, and amplifier

 #26
20180034424
2018-02-01

Methods related to fast turn-on of radio-frequency amplifiers

 #27
20180013465
2018-01-11

Multi-mode radio frequency circuitry

 #28
20170338781
2017-11-23

Power amplification system with reactance compensation

 #29
20170331439
2017-11-16

Transmission module, array antenna device including transmission module, and transmission device including transmission module

 #30
20170250725
2017-08-31

Triple-gate PHEMT for multi-mode multi-band switch applications

 #31
20170229480
2017-08-10

Semiconductor device including a high-electron-mobility transistor (HEMT) and method for manufacturing the same

 #32
20170187340
2017-06-29

Capacitive Cross-Coupling and Harmonic Rejection

 #33
20170170787
2017-06-15

Apparatus and methods for power enhancement of self-biased distributed amplifiers with gate bias networks

 #34
20170126179
2017-05-04

Capacitive cross-coupling and harmonic rejection

 #35
20160323008
2016-11-03

GAAS/SIGE-BICMOS-based transceiver system-in-package for E-band frequency applications

 #36
20160307998
2016-10-20

Compound semiconductor device and method of manufacturing the same

 #37
20160164470
2016-06-09

Method, apparatus and system for envelope tracking

 #38
20160111417
2016-04-21

Electronic circuits including a MOSFET and a dual-gate JFET

 #39
20160049908
2016-02-18

Radio-frequency amplifier circuit and control voltage setting method for radio-frequency amplifier circuit

 #40
20150061776
2015-03-05

High speed amplifier

 #41
20150054038
2015-02-26

Electronic circuits including a MOSFET and a dual-gate JFET

 #42
20140097900
2014-04-10

Circuit and method for biasing a gallium arsenide (GaAs) power amplifier

 #43
20130337619
2013-12-19

Compound semiconductor device and method for manufacturing the same

 #44
20130248945
2013-09-26

Electronic circuits including a MOSFET and a dual-gate JFET

 #45
20130229237
2013-09-05

High-frequency amplifier

 #46
20130223565
2013-08-29

Transmitter linearized using look-up table with unadaptable data and method therefor

 #47
20130222057
2013-08-29

Power supply pre-distortion

 #48
20130056801
2013-03-07

Junction field effect transistor and analog circuit

 #49
20130043954
2013-02-21

Monolithic microwave integrated circuit (MMIC) including air bridge coupler

 #50
20120194267
2012-08-02

Distributed amplifier for band pass radio front-end

 #51
20120188021
2012-07-26

Low 1/f noise high-frequency broadband amplifier (DC-12 GHz)

 #52
20120086519
2012-04-12

Impedance-matching circuits for multi-output power supplies driving COgas-discharge lasers

 #53
20110181324
2011-07-28

Self-adjusting gate bias network for field effect transistors

 #54
20110148524
2011-06-23

Radio frequency buffer

 #55
20110081879
2011-04-07

Amplifier circuit and communication device

 #56
20110080230
2011-04-07

Bias circuit

 #57
20110074512
2011-03-31

Circuit and method for biasing a gallium arsenide (GaAs) power amplifier

 #58
20100060362
2010-03-11

Cascode circuit

 #59
20100039168
2010-02-18

Bias network

 #60
20090195314
2009-08-06

Device and method for amplifying pulsed RF signals

 #61
20090066439
2009-03-12

Input circuitry for transistor power amplifier and method for designing such circuitry

 #62
20090066411
2009-03-12

Method for designing input circuitry for transistor power amplifier

 #63
20080290947
2008-11-27

Reconfigurable tunable RF power amplifier

 #64
20080143442
2008-06-19

Electrical Circuit

 #65
20080102759
2008-05-01

Circuit and method for biasing a gallium arsenide (GaAs) power amplifier

 #66
20080007339
2008-01-10

Transmitter apparatus with extended gain control

 #67
20070184790
2007-08-09

Control of a power amplifier for reducing power consumption in a transceiver

 #68
20070024376
2007-02-01

Radio frequency power amplifier module

 #69
20060214728
2006-09-28

Transmitter apparatus with extended gain control

 #70
20060189286
2006-08-24

Multi-band low noise amplifier, multi-band low noise amplifier module, wireless integrated circuit and multi-band RF module

 #71
20060114059
2006-06-01

Power amplifier with controllable feedback loop

 #72
20060028278
2006-02-09

Radio frequency power amplifier module

 #73
20060028269
2006-02-09

Power amplifier with switchable load

 #74
20050093626
2005-05-05

Radio frequency power amplifier module

 #75
20050088236
2005-04-28

Power amplifier module

 #76
18109382
2023-08-29

Dual-band coupling low-noise amplifying circuit and amplifier

 #77
16263291
2020-06-02

Series-connected FETs in active linear mode

 #78
16039370
2019-12-24

Monolithic microwave integrated circuits having both enhancement-mode and depletion mode transistors

 #79
15831127
2019-02-19

Silicon shielding for baseband termination and RF performance enhancement

 #80
15481710
2018-05-08

Radio frequency power amplifier and method thereof

 #81
15072242
2016-11-01

Microfluidic impingement jet cooled embedded diamond GaN HEMT