ClassID:

219522

H03F2200/108 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A coil being added in the drain circuit of a FET amplifier stage, e.g. for noise reducing purposes

Recent Application in this class:
#1
20250150034
2025-05-08

Body Tie Optimization for Stacked Transistor Amplifier

#2
20240235497
2024-07-11

Scalable Periphery Tunable Matching Power Amplifier

#3
20240136983
2024-04-25

Scalable Periphery Tunable Matching Power Amplifier

#4
20230283237
2023-09-07

Body tie optimization for stacked transistor amplifier

#5
20220329215
2022-10-13

Scalable periphery tunable matching power amplifier

#6
20210067096
2021-03-04

Body tie optimization for stacked transistor amplifier

#7
20210058041
2021-02-25

Scalable periphery tunable matching power amplifier

#8
20200313635
2020-10-01

Method and device for providing a bias voltage in transceivers operating in time division multiplexing operation

#9
20200280286
2020-09-03

Power amplification module

#10
20200083850
2020-03-12

Control circuit with bypass function

#11
20200083849
2020-03-12

CIRCUITS, DEVICES, AND METHODS FOR REDUCING CO-CHANNEL INTERFERENCE

#12
20200059201
2020-02-20

Wideband biasing of high power amplifiers

#13
20200052664
2020-02-13

MATRIX POWER AMPLIFIER

#14
20190379330
2019-12-12

Body tie optimization for stacked transistor amplifier

#15
20190319720
2019-10-17

APPARATUS AND METHODS OF CALIBRATING A POWER AMPLIFIER SYSTEM TO COMPENSATE FOR ENVELOPE AMPLITUDE MISALIGNMENT

#16
20190288651
2019-09-19

Matrix power amplifier

#17
20190267954
2019-08-29

Scalable periphery tunable matching power amplifier

#18
20190140596
2019-05-09

Power amplification module

#19
20190081651
2019-03-14

Radio frequency circuit, radio-frequency front-end circuit, and communication device

#20
20190058448
2019-02-21

Method and device for providing a bias voltage in transceivers

#21
20190020314
2019-01-17

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

#22
20180351518
2018-12-06

Power amplification circuit

#23
20180302036
2018-10-18

Apparatus and methods for envelope tracking systems

#24
20180269838
2018-09-20

Schottky enhanced bias circuit

#25
20180269725
2018-09-20

Wireless power transmitter

#26
20180254751
2018-09-06

Distributed amplifier

#27
20180183391
2018-06-28

Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source/gate LNA

#28
20180175801
2018-06-21

Inter-stage network for radio frequency amplifier

#29
20180159475
2018-06-07

Body tie optimization for stacked transistor amplifier

#30
20180138870
2018-05-17

Scalable periphery tunable matching power amplifier

#31
20180097484
2018-04-05

Matrix power amplifier

#32
20180097481
2018-04-05

Fully integrated low-noise amplifier

#33
20180062591
2018-03-01

High-frequency amplifier module

#34
20170359029
2017-12-14

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

#35
20170288616
2017-10-05

Power amplification circuit

#36
20170288611
2017-10-05

Power amplification module

#37
20170264251
2017-09-14

Circuits, devices and methods for reducing co-channel interference

#38
20170230016
2017-08-10

Electric power converter and power amplifier

#39
20170222004
2017-08-03

SEMICONDUCTOR DEVICE AND TRANSMITTER

#40
20170141748
2017-05-18

Amplifier system, controller of main amplifier and associated control method

#41
20170133989
2017-05-11

Bias control for stacked transistor configuration

#42
20170126464
2017-05-04

Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source/gate LNA

#43
20170093505
2017-03-30

Methods of calibrating a power amplifier system to compensate for envelope amplitude misalignment

#44
20170047953
2017-02-16

Apparatus and methods for envelope tracking systems

#45
20170040950
2017-02-09

Distributed amplifier with improved stabilization

#46
20160373063
2016-12-22

Current enhanced driver for high-power solid-state radio frequency power amplifiers

#47
20160285423
2016-09-29

Power amplification module

#48
20160285418
2016-09-29

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

#49
20160241199
2016-08-18

Control systems and methods for power amplifiers operating in envelope tracking mode

#50
20160190993
2016-06-30

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

#51
20160190989
2016-06-30

Optimization methods for amplifier with variable supply power

#52
20160164469
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

#53
20160164468
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

#54
20160156320
2016-06-02

Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source/gate LNA

#55
20160126901
2016-05-05

Amplifier topology for envelope tracking

#56
20160099742
2016-04-07

Apparatus and methods for calibration of envelope trackers

#57
20160094184
2016-03-31

Schottky enhanced bias circuit

#58
20160087593
2016-03-24

Scalable periphery tunable matching power amplifier

#59
20160087592
2016-03-24

Single-end amplifier and noise cancelling method thereof

#60
20160079940
2016-03-17

Apparatus and methods for power amplifiers

#61
20160072456
2016-03-10

Dual-band low noise amplifier

#62
20160049908
2016-02-18

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

#63
20160028353
2016-01-28

Systems, circuits and methods related to low power efficiency improvement in multi-mode multi-band power amplifiers

#64
20150333702
2015-11-19

Radio frequency amplifying circuit and power amplifying module

#65
20150326184
2015-11-12

Apparatus and methods for envelope trackers

#66
20150311874
2015-10-29

Broadband power amplifier systems and methods

#67
20150270809
2015-09-24

Power amplification module

#68
20150270806
2015-09-24

Bias control for stacked transistor configuration

#69
20150256132
2015-09-10

Distributed amplifier

#70
20150244322
2015-08-27

Bias circuits and methods for stacked devices

#71
20150222231
2015-08-06

Microwave amplifier device

#72
20150207491
2015-07-23

Device for negative group delay

#73
20150162876
2015-06-11

Amplifier circuit with cross wiring of direct-current signals and microwave signals

#74
20150155834
2015-06-04

Apparatus and methods for calibrating envelope trackers

#75
20150009980
2015-01-08

Apparatus and methods for wide local area network power amplifiers

#76
20140354360
2014-12-04

High frequency module and portable terminal using same

#77
20140333384
2014-11-13

Circuits and methods related to low-noise amplifiers having improved linearity

#78
20140320211
2014-10-30

Distributed amplifier with improved stabilization

#79
20140306761
2014-10-16

Power amplifier

#80
20140300422
2014-10-09

High output power amplifier

#81
20140285268
2014-09-25

Radio frequency amplifying circuit and power amplifying module

#82
20140266460
2014-09-18

Scalable periphery tunable matching power amplifier

#83
20140225671
2014-08-14

High efficiency power amplifier

#84
20140213204
2014-07-31

Apparatus and methods for envelope tracking in radio frequency systems

#85
20140197892
2014-07-17

On-die harmonics filtering for radio frequency power amplifiers

#86
20140184337
2014-07-03

Control systems and methods for power amplifiers operating in envelope tracking mode

#87
20140184336
2014-07-03

Amplifier dynamic bias adjustment for envelope tracking

#88
20140184335
2014-07-03

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

#89
20140184334
2014-07-03

Optimization methods for amplifier with variable supply power

#90
20140167856
2014-06-19

Power amplifier and operation method therefor

#91
20140128013
2014-05-08

Low variation current multiplier

#92
20140097894
2014-04-10

Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source-gate LNA

#93
20130223565
2013-08-29

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

#94
20130222057
2013-08-29

Power supply pre-distortion

#95
20130143511
2013-06-06

Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source/gate LNA

#96
20130128779
2013-05-23

Amplifying circuit and wireless communications apparatus including the same

#97
20130127544
2013-05-23

Amplifier circuit

#98
20130127542
2013-05-23

ACTIVE ANTENNA ARRANGEMENT WITH DOHERTY AMPLIFIER

#99
20130116017
2013-05-09

Apparatus and methods for power amplifiers

#100
20130107769
2013-05-02

Average frequency control of switcher for envelope tracking

#101
20130057349
2013-03-07

Power amplifier

#102
20130049872
2013-02-28

Power amplifier system

#103
20130049867
2013-02-28

Class of power amplifiers for improved back off operation

#104
20130029620
2013-01-31

Low variation current multiplier

#105
20120326778
2012-12-27

Closed loop bias control

#106
20120269240
2012-10-25

Apparatus and methods for envelope tracking

#107
20120229216
2012-09-13

Distributed amplifier with improved stabilization

#108
20120200354
2012-08-09

Apparatus and methods for envelope tracking calibration

#109
20120194276
2012-08-02

Low noise amplifiers including group III nitride based high electron mobility transistors

#110
20120194267
2012-08-02

Distributed amplifier for band pass radio front-end

#111
20120157010
2012-06-21

Electrical Power Amplifier Circuit, and Transmission Device and Communication Device Using the Same

#112
20120154047
2012-06-21

Low-noise amplifier

#113
20120146722
2012-06-14

Power amplifier having a nonlinear output capacitance equalization

#114
20120139643
2012-06-07

Output stage of a power amplifier having a switched-bulk biasing and adaptive biasing

#115
20120112838
2012-05-10

RF power amplifier and RF power module using the same

#116
20120108187
2012-05-03

Transmitter circuit and communication apparatus

#117
20120098598
2012-04-26

Radio frequency power amplifier

#118
20120092075
2012-04-19

Power amplification systems and methods

#119
20120007678
2012-01-12

Broadband transistor bias network

#120
20110298545
2011-12-08

RF power amplifier device and operating method thereof

#121
20110175680
2011-07-21

Wireless communication device and semiconductor package device having a power amplifier therefor

#122
20110142263
2011-06-16

System and method for biasing active devices

#123
20110090133
2011-04-21

Electronically scanned array having a transmission line distributed oscillator and switch-mode amplifier

#124
20110050372
2011-03-03

Integrated channel filter using multiple resonant filters and method of operation

#125
20110043287
2011-02-24

Adaptive bias circuit and system thereof

#126
20110032037
2011-02-10

Power amplifier bias circuit having controllable current profile

#127
20110018636
2011-01-27

Signal amplification apparatus with advanced linearization

#128
20100327970
2010-12-30

Transmission line distributed oscillator

#129
20100301947
2010-12-02

RF POWER AMPLIFIER

#130
20100295629
2010-11-25

Output circuit with integrated impedance matching, power combining and filtering for power amplifiers and other circuits

#131
20100283544
2010-11-11

Harmonic processing circuit and amplifying circuit using the same

#132
20100264992
2010-10-21

Amplifying circuit and amplifying method

#133
20100264991
2010-10-21

Switched capacitor voltage converter for a power amplifier

#134
20100264990
2010-10-21

Amplifying circuit, AC signal amplifying circuit and input bias adjusting method

#135
20100237938
2010-09-23

High efficiency linear power amplifiers with load compensation

#136
20100207692
2010-08-19

Bias circuit and control method for bias circuit

#137
20100194481
2010-08-05

RF power amplifier and RF power module using the same

#138
20100188153
2010-07-29

High-efficiency power amplification apparatus using saturated operation and method for controlling the same

#139
20100141337
2010-06-10

Amplifier with programmable off voltage

#140
20100109782
2010-05-06

FET bias circuit

#141
20100090767
2010-04-15

RF amplification device

#142
20100066452
2010-03-18

Wideband low-noise amplifier

#143
20100046677
2010-02-25

Amplifier with single-ended input and differential output

#144
20100027301
2010-02-04

BAND-PASS CURRENT MODE CONTROL SCHEME FOR SWITCHING POWER CONVERTERS WITH HIGHER-ORDER OUTPUT FILTERS

#145
20100019858
2010-01-28

N:M TRANSFORMER AND IMPEDANCE MATCHING

#146
20100019857
2010-01-28

HYBRID IMPEDANCE MATCHING

#147
20090245425
2009-10-01

Antenna device, demodulating device and receiving device

#148
20090237167
2009-09-24

Integrated amplifier circuit

#149
20090224834
2009-09-10

Switched capacitor voltage converter for a power amplifier

#150
20090219092
2009-09-03

Highly linear differential amplifier with a novel resistive source degeneration network

#151
20090212870
2009-08-27

Cascode-cascade power amplifier assembly

#152
20090201085
2009-08-13

Power amplifying apparatus and mobile communication terminal

#153
20090189696
2009-07-30

Low-noise amplifier

#154
20090174480
2009-07-09

Systems and methods for cascode switching power amplifiers

#155
20090146741
2009-06-11

High-frequency amplifier, high-frequency module, and mobile wireless apparatus using the same

#156
20090146740
2009-06-11

Average power efficiency enhancement and linearity improvement of microwave power amplifiers

#157
20090140804
2009-06-04

Method and apparatus for improving the performance of MIMO wireless systems

#158
20090134942
2009-05-28

Radio frequency amplifier with constant gain setting

#159
20090121791
2009-05-14

Wideband low noise amplifiers

#160
20090115529
2009-05-07

Power amplifier having input ends combined in series and output ends combined in series

#161
20090115526
2009-05-07

FET bias circuit

#162
20090115520
2009-05-07

Temperature compensation of collector-voltage control RF amplifiers

#163
20090102571
2009-04-23

Cascode amplifier and differential cascode voltage-controlled oscillator using the same

#164
20090051435
2009-02-26

RF amplifier with stacked transistors, transmitting device, and method therefor

#165
20080242257
2008-10-02

FIELD EFFECT TRANSISTOR AMPLIFIER WITH LINEARIZATION

#166
20080238550
2008-10-02

Power amplifier and transmission and reception system

#167
20080204145
2008-08-28

Bias control circuit and method of controlling bias of RF power amplifier

#168
20080119153
2008-05-22

Multiband wireless device and semiconductor integrated circuit

#169
20080111632
2008-05-15

Cascode low noise amplifier with a source coupled active inductor

#170
20080100375
2008-05-01

Integrated channel filter using multiple resonant filters and method of operation

#171
20080079649
2008-04-03

Electronically scanned array having a transmission line distributed oscillator and switch-mode amplifier

#172
20080061887
2008-03-13

Apparatus for converting single-ended signal into differential signal

#173
20080055001
2008-03-06

Power amplifying apparatus and mobile communication terminal

#174
20080030278
2008-02-07

Distributed amplifier having a variable terminal resistance

#175
20080007357
2008-01-10

High frequency stabilization network for microwave devices and monolithic integrated circuits

#176
20080001674
2008-01-03

Regulation of an amplification apparatus

#177
20070298736
2007-12-27

RF power amplifier

#178
20070252651
2007-11-01

Power Amplifier With A Output Matching Network

#179
20070205829
2007-09-06

Single-ended input to differential-ended output low noise amplifier

#180
20070139120
2007-06-21

RF amplifier with a bias boosting scheme

#181
20070132512
2007-06-14

Variable gain amplifier

#182
20070069818
2007-03-29

Multilevel power amplifier architecture using multi-tap transformer

#183
20070040613
2007-02-22

Isolated stable bias circuit

#184
20070018903
2007-01-25

Transmission line distributed oscillator

#185
20060284783
2006-12-21

Phase shifters for beamforming applications

#186
20060250121
2006-11-09

PFM control circuit for DC regulator

#187
20060232329
2006-10-19

Integrated channel filter using multiple resonant filters and method of operation

#188
20060158256
2006-07-20

Amplifier circuit having an extended Wilson current-mirror self-bias boosting circuit

#189
20060091958
2006-05-04

Multilevel power amplifier architecture using multi-tap transformer

#190
20060066403
2006-03-30

Power amplifier and method for power amplification

#191
20060033576
2006-02-16

Amplifier circuit having an impedance-controllable bias-boosting circuit

#192
20050176399
2005-08-11

Field effect transistor amplifier with linearization