ClassID:

219720

H03F2203/21103 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers An impedance adaptation circuit being added at the input of a power amplifier stage

Recent Application in this class:
#1
20240243703
2024-07-18

POWER AMPLIFYING DEVICE

#2
20210135634
2021-05-06

Dual-path amplifier having reduced harmonic distortion

#3
20210135628
2021-05-06

Power amplifier module

#4
20210111679
2021-04-15

Power splitter with signal amplification

#5
20210044263
2021-02-11

Power amplifier circuit

#6
20210013837
2021-01-14

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#7
20210006214
2021-01-07

Amplifying apparatus

#8
20200403582
2020-12-24

Matching network and power amplifier circuit

#9
20200389130
2020-12-10

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#10
20200388476
2020-12-10

Amplification system for continuously adjusting amplification gain of a high frequency weak signal for mass spectrometers

#11
20200358403
2020-11-12

Power amplifier circuit and bias control circuit

#12
20200212861
2020-07-02

Programmable gain amplifier systems and methods

#13
20200194368
2020-06-18

Transistor with non-circular via connections in two orientations

#14
20200186097
2020-06-11

Integrally-formed multiple-path power amplifier with on-die combining node structure

#15
20200186096
2020-06-11

Power amplifier with integrated bias circuit having multi-point input

#16
20200162039
2020-05-21

Devices and methods for power amplification with shared common base biasing

#17
20200162029
2020-05-21

Circuits, devices and methods related to amplification with active gain bypass

#18
20200136572
2020-04-30

Digital power amplifier

#19
20200136559
2020-04-30

Power amplifier module

#20
20200127620
2020-04-23

Power amplifier and electronic device

#21
20200119701
2020-04-16

Power amplification device, terminal having the same, and base station having the same

#22
20200118922
2020-04-16

Transistor with non-circular via connections in two orientations

#23
20200051942
2020-02-13

Radio-frequency module and communication device

#24
20190305733
2019-10-03

Second harmonic terminations for AM-AM and AM-PM suppression

#25
20190199302
2019-06-27

Power amplifier circuit

#26
20190199298
2019-06-27

Matching network and power amplifier circuit

#27
20190199293
2019-06-27

Power amplifying apparatus with wideband linearity

#28
20190190476
2019-06-20

Power amplifier circuit

#29
20190190455
2019-06-20

Transmission unit

#30
20190140598
2019-05-09

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#31
20190123699
2019-04-25

Power splitter with cascode stage selection

#32
20190036488
2019-01-31

Radio-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication device

#33
20190020314
2019-01-17

RF amplifier with conductor-less region underlying filter circuit inductor, and methods of manufacture thereof

#34
20180323754
2018-11-08

Power amplification device, terminal having the same, and base station having the same

#35
20180254749
2018-09-06

Doherty amplifier

#36
20180241352
2018-08-23

Apparatus and method for improving efficiency of power amplifier

#37
20180234061
2018-08-16

Multi-mode power amplifier

#38
20180205346
2018-07-19

Harmonically tuned load modulated amplifier

#39
20180190601
2018-07-05

High-frequency module

#40
20180175800
2018-06-21

RF power amplifier bias modulation with programmable stages

#41
20180159479
2018-06-07

Amplifier die with elongated side pads, and amplifier modules that incorporate such amplifier die

#42
20180145043
2018-05-24

RF power package having planar tuning lines

#43
20180123520
2018-05-03

Amplifier architecture reconfiguration

#44
20180076774
2018-03-15

Radio-frequency amplifier having active gain bypass circuit

#45
20180062592
2018-03-01

Reconfigurable power amplifier

#46
20180034418
2018-02-01

Doherty input power splitter and linearization method

#47
20170317653
2017-11-02

Methods for power amplification with shared common base biasing

#48
20170237403
2017-08-17

Multiplexed multi-stage low noise amplifier uses gallium arsenide and CMOS dice

#49
20170163219
2017-06-08

Power amplifier

#50
20170133990
2017-05-11

Outphasing power amplifier signal splitter using next stage input impedance and multiple biasing

#51
20170104457
2017-04-13

Multiplexed multi-stage low noise amplifier uses gallium arsenide and CMOS dies

#52
20170077875
2017-03-16

Doherty power amplifier and transmitter

#53
20170026023
2017-01-26

Balun transformer

#54
20170026009
2017-01-26

Impedance matching arrangement for an amplifier

#55
20160322944
2016-11-03

Power amplification module

#56
20160308493
2016-10-20

Radio frequency signal power amplification circuit

#57
20160301366
2016-10-13

Power amplification module

#58
20160285426
2016-09-29

Power amplifiers with tunable notches

#59
20160285418
2016-09-29

RF amplifier with conductor-less region underlying filter circuit inductor, and methods of manufacture thereof

#60
20160268976
2016-09-15

Sequential broadband doherty power amplifier with adjustable output power back-off

#61
20160241210
2016-08-18

Power amplifier with cascode switching or splitting functionality

#62
20160241195
2016-08-18

Power amplification system with shared common base biasing

#63
20160233919
2016-08-11

Transceiver suitable for multiple power level operation and method therefor

#64
20160204745
2016-07-14

Linear amplifier using nonlinear amplifying stage

#65
20160204743
2016-07-14

POWER AMPLIFICATION APPARATUS AND CONTROL METHOD OF POWER AMPLIFICATION APPARATUS

#66
20160181989
2016-06-23

Multi-mode power amplifier

#67
20160164471
2016-06-09

Radio frequency devices with surface-mountable capacitors for decoupling and methods thereof

#68
20160142025
2016-05-19

Integrated matching circuit for a high frequency amplifier

#69
20160036396
2016-02-04

Power Amplifier, and Method of the Same

#70
20150349727
2015-12-03

Bandwidth limiting methods for GaN power transistors

#71
20150341002
2015-11-26

Wireless communication device, method and power amplifier of the same

#72
20150244338
2015-08-27

Wireless communication device, method and power amplifier of the same

#73
20150171793
2015-06-18

Efficient low noise high speed amplifier

#74
20150148095
2015-05-28

Multi-mode power amplifier

#75
20150091653
2015-04-02

Reconfigurable load modulation amplifier

#76
20150002230
2015-01-01

Doherty amplifier

#77
20120182086
2012-07-19

Semiconductor device

#78
20120126887
2012-05-24

High-efficiency power amplifier with multiple power modes

#79
20120062322
2012-03-15

Power amplifier with transistor input mismatching

#80
20120044980
2012-02-23

Multi-mode high efficiency linear power amplifier

#81
20120001695
2012-01-05

Radio frequency power amplifier

#82
20110309884
2011-12-22

Solid-state RF power amplifier for radio transmitters

#83
20110230149
2011-09-22

RF power amplifier device and wireless communication terminal device

#84
20110095828
2011-04-28

Multi-mode high efficiency linear power amplifier

#85
20100188146
2010-07-29

High efficiency power amplifier having embedded switching

#86
20100156537
2010-06-24

Solid-state RF power amplifier for radio transmitters

#87
20100127780
2010-05-27

Power amplifiers with discrete power control

#88
20090195317
2009-08-06

Multi-mode high efficiency linear power amplifier

#89
20090039960
2009-02-12

Low power consuming mixed mode power amplifier

#90
20080164946
2008-07-10

Coupling net and MMIC amplifier

#91
20080125061
2008-05-29

RF power amplifying device and wireless communication terminal device

#92
20080094141
2008-04-24

High-frequency power amplifier

#93
20080068079
2008-03-20

Efficient Narrow Band Amplification Using Phase Amplifier

#94
20070285168
2007-12-13

Solid-state RF power amplifier for radio transmitters

#95
20070152751
2007-07-05

Wide bandwidth, high power amplifier

#96
20060290444
2006-12-28

Power amplifier utilizing quadrature hybrid for power dividing, combining and impedance matching

#97
15635971
2018-05-15

Doherty architecture for wideband power amplifier design

#98
15635800
2018-05-08

Doherty architecture for wideband power amplifier design

#99
15064058
2017-04-25

Multi-band Doherty amplifier device and method therefor