H03F 1/22

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Class  H03F : AMPLIFIERS


Subclass 1/22: Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements (wide-band amplifiers with inter-stage coupling networks incorporating these impedances H03F 1/42; eliminating transit-time effects in vacuum tubes H01J 21/34) by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12261573 Amplifier with stacked transconducting cells in current mode combiningNov 19, 21Mar 25, 25THE BOEING COMPANY
12255587 Gate drivers for stacked transistor amplifiersAug 09, 23Mar 18, 25pSemi Corporation
12255588 Cascode amplifier bias circuitsApr 02, 24Mar 18, 25pSemi Corporation
12255674 Constant-phase attenuator techniques in radio frequency front end (RFFE) amplifiersJan 20, 22Mar 18, 25QUALCOMM Incorporated
12244273 Amplifier circuitDec 22, 21Mar 04, 25Murata Manufacturing Co Ltd.
12231087 Body tie optimization for stacked transistor amplifierMar 10, 23Feb 18, 25pSemi Corporation
12231092 Methods related to power amplification systems with adjustable common base biasMar 19, 24Feb 18, 25Skyworks Solutions, Inc.
12224714 Multiple transistor low noise amplifier optimized for cryogenic temperaturesMay 17, 21Feb 11, 25AmpliTech, Inc.
12218637 Drain switched split amplifier with capacitor switching for noise figure and isolation improvement in split modeDec 08, 23Feb 04, 25pSemi Corporation
12212291 Drain sharing split LNAJul 13, 23Jan 28, 25pSemi Corporation
12191815 Sub-micron CMOS high-power cascode RF power amplifierAug 19, 21Jan 07, 25RENESAS ELECTRONICS AMERICA INC.
12191816 Complementary balanced low-noise amplifier circuitDec 10, 21Jan 07, 25Qorvo US, Inc.
12191819 Hybrid input LNA RF frontend architectureNov 10, 21Jan 07, 25Murata Manufacturing Co Ltd.
12184240 Low noise amplifiers with low noise figureJan 26, 24Dec 31, 24Skyworks Solutions, Inc.
12184242 Two-stage LNA with mutual couplingNov 06, 23Dec 31, 24pSemi Corporation
12184244 Millimeter-wavelength power amplifiers having both high power gain and high output powerJul 07, 21Dec 31, 24Not available
12184248 RFFE LNA topology supporting both noncontiguous intraband carrier aggregation and interband carrier aggregationMay 10, 22Dec 31, 24pSemi Corporation
12166454 Devices and methods for detecting a saturation condition of a power amplifierApr 14, 23Dec 10, 24Skyworks Solutions, Inc.
12155360 Programmable gain amplifier with impedance matching and reverse isolationFeb 18, 22Nov 26, 24Realtek Semiconductor Corp.
12149209 High efficiency ultra-wideband amplifierJun 01, 21Nov 19, 24Not available

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0112,602 MULTI-GATE DIFFERENTIAL POWER AMPLIFIEROct 02, 23Apr 03, 25Not available
2025/0112,603 WIDEBAND CHANNEL SELECTIVE AMPLIFIER STRUCTURESSep 29, 23Apr 03, 25Not available
2025/0080,066 Multipath Amplifier with Compact Power Splitting and Combining TransformersAug 31, 23Mar 06, 25Not available
2025/0070,719 HIGH EFFICIENCY ULTRA-WIDEBAND AMPLIFIERNov 15, 24Feb 27, 25Not available
2025/0055,420 POWER AMPLIFIER SYSTEM WITH GAIN EXPANSION COMPENSATIONNov 22, 22Feb 13, 25Not available
2024/0429,868 Transient Stabilized Cascode BiasingMar 22, 24Dec 26, 24Not available
2024/0429,873 HIGH VOLTAGE STACKED TRANSISTOR AMPLIFIERSep 04, 24Dec 26, 24Not available
2024/0429,874 STACKED MULTI-STAGE PROGRAMMABLE LNA ARCHITECTURESep 06, 24Dec 26, 24Not available
2024/0405,724 Standby Voltage Condition for Fast RF Amplifier Bias RecoveryMay 07, 24Dec 05, 24Not available
2024/0396,502 SINGLE-ENDED-TO-DIFFERENTIAL TRANSCONDUCTANCE AMPLIFIERS AND APPLICATIONS THEREOFSep 28, 22Nov 28, 24Not available
2024/0396,503 DUAL VOLTAGE SWITCHED BRANCH LNA ARCHITECTUREJul 31, 24Nov 28, 24Not available
2024/0388,256 IMPEDANCE CONTROL IN MERGED STACKED FET AMPLIFIERSMar 29, 24Nov 21, 24Not available
2024/0339,966 SEMICONDUCTOR DEVICEMar 14, 24Oct 10, 24Sumitomo Electric Industries, Ltd.
2024/0322,760 Constant VDS1 Bias Control for Stacked Transistor ConfigurationJan 08, 24Sep 26, 24Not available
2024/0313,721 POWER EFFICIENT COMPLEMENTARY AMPLIFIER AND METHOD THEREOFMar 13, 23Sep 19, 24Not available
2024/0297,625 AMPLIFIER BIASING FOR CLASS-AB OUTPUT STAGE IN A TRANSIMPEDANCE AMPLIFIER (TIA)-BASED LOW-PASS FILTER FOR A PASSIVE UPCONVERTERMar 02, 23Sep 05, 24Not available
2024/0283,407 Transistor Bias Adjustment for Optimization of Third Order Intercept Point in a Cascode AmplifierJan 30, 24Aug 22, 24Not available
2024/0275,336 Integrated Circuit Yield ImprovementFeb 23, 24Aug 15, 24Not available
2024/0275,341 Signal transmission apparatus and power amplification output circuitJan 19, 24Aug 15, 24Not available
2024/0258,979 INTRINSIC MOS CASCODE DIFFERENTIAL INPUT PAIRJan 27, 23Aug 01, 24Not available

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