Patents-Review.com
ClassID:

219599 ⎘

H03F2200/318 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A matching circuit being used as coupling element between two amplifying stages

Recent Application in this class:
#1
20260113006
2026-04-23

MULTI-MODE POWER AMPLIFIER SIGNAL SWITCHING

 #2
20250380477
2025-12-11

BIPOLAR TRANSISTOR HAVING COLLECTOR WITH A RETROGRADE DOPING PROFILE

 #3
20250300613
2025-09-25

PUSH-PULL AMPLIFIER WITH FEEDBACK CANCELLATION

 #4
20250219586
2025-07-03

DOHERTY AMPLIFIER

 #5
20250211181
2025-06-26

POWER AMPLIFIER CIRCUIT

 #6
20250096745
2025-03-20

RADIO FREQUENCY SWITCH CIRCUIT, WIRELESS TRANSCEIVER SYSTEM, AND ELECTRONIC DEVICE

 #7
20250088162
2025-03-13

Power Amplifier Self-Heating Compensation Circuit

 #8
20240429878
2024-12-26

MULTI-PATH AMPLIFICATION CIRCUIT FOR OPERATING IN DIFFERENT POWER MODES

 #9
20240405732
2024-12-05

HIGH FREQUENCY CIRCUIT AND COMMUNICATION APPARATUS

 #10
20240396509
2024-11-28

OUTPUT MATCHING CIRCUIT WITH SUPPRESSED HARMONICS

 #11
20240333238
2024-10-03

TRANSFORMER AND RADIO FREQUENCY MODULE

 #12
20240322762
2024-09-26

OVERVOLTAGE PROTECTION FOR POWER AMPLIFIER WITH SOFT SHUTDOWN

 #13
20240313713
2024-09-19

OUTPHASING AMPLIFIER

 #14
20240186966
2024-06-06

RADIO FREQUENCY PUSHPULL POWER AMPLIFIER

 #15
20240056034
2024-02-15

BIAS CIRCUIT AND POWER AMPLIFIER CIRCUIT

 #16
20240048101
2024-02-08

APPARATUS AND METHODS FOR BIASING OF POWER AMPLIFIERS

 #17
20230421121
2023-12-28

Split Bias with Single Control Current Source for Radio Frequency Power Amplifier

 #18
20230387868
2023-11-30

Wideband Amplifier

 #19
20230361728
2023-11-09

Amplifier with integrated gain slope equalizer

 #20
20230353095
2023-11-02

Linearization of differential RF power amplifier by bias control using cross-coupling components

 #21
20230327612
2023-10-12

COMMUNICATION CIRCUIT INCLUDING AMPLIFIER MODULE, AND ELECTRONIC DEVICE COMPRISING SAME

 #22
20230318541
2023-10-05

LOAD INSENSITIVE POWER DETECTION

 #23
20230291368
2023-09-14

Wideband auxiliary input for low noise amplifiers

 #24
20230253931
2023-08-10

POWER AMPLIFIER SYSTEM WITH PROTECTION CIRCUITRY

 #25
20230253925
2023-08-10

METHODS FOR MANUFACTURING DOHERTY POWER AMPLIFIER

 #26
20230253346
2023-08-10

Switch with electrostatic discharge (ESD) protection

 #27
20230198484
2023-06-22

Metamaterial based power amplifier module

 #28
20230198483
2023-06-22

Power amplifier output matching with suppressed harmonics

 #29
20230188100
2023-06-15

Group III nitride based depletion mode differential amplifiers and related RF transistor amplifier circuits

 #30
20230155556
2023-05-18

MATCHING CIRCUIT

 #31
20230128387
2023-04-27

Three-way combined RF power amplifier architecture

 #32
20230092413
2023-03-23

RADIOFREQUENCY AMPLIFIER

 #33
20230087716
2023-03-23

Switched capacitor modulator

 #34
20230084770
2023-03-16

Power amplifier self-heating compensation circuit

 #35
20230062918
2023-03-02

INTERSTAGE MATCHING CIRCUIT AND PUSH-PULL POWER AMPLIFIER CIRCUIT

 #36
20230034531
2023-02-02

POWER AMPLIFIER WITH OVERVOLTAGE PROTECTION IN INPUT MATCHING STAGE

 #37
20230026142
2023-01-26

AMPLIFIER CIRCUIT

 #38
20220416738
2022-12-29

Active duplexer

 #39
20220321069
2022-10-06

MULTI-MODE POWER AMPLIFIER SIGNAL SWITCHING

 #40
20220311395
2022-09-29

POWER AMPLIFICATION CIRCUIT, RADIO-FREQUENCY CIRCUIT, AND COMMUNICATION DEVICE

 #41
20220311386
2022-09-29

Apparatus and methods for bias switching of power amplifiers

 #42
20220278656
2022-09-01

Wideband auxiliary input for low noise amplifiers

 #43
20220239261
2022-07-28

Overvoltage protection for power amplifier with soft shutdown

 #44
20220224016
2022-07-14

Electromagnetic wave radiator

 #45
20220209728
2022-06-30

Protection circuit of power amplifier and power amplifier including the same

 #46
20220200537
2022-06-23

Low noise amplifier and operation method of low noise amplifier

 #47
20220190786
2022-06-16

Auto-linearizing amplifier

 #48
20220189886
2022-06-16

Switch with electrostatic discharge (ESD) protection

 #49
20220182025
2022-06-09

Output matching circuit and power amplifier circuit

 #50
20220182024
2022-06-09

Switched capacitor modulator

 #51
20220182022
2022-06-09

Power amplifier with a power transistor and an electrostatic discharge protection circuit on separate substrates

 #52
20220166386
2022-05-26

Amplifier with stacked transconducting cells in current mode combining

 #53
20220166385
2022-05-26

Amplifier with stacked transconducting cells in parallel and/or cascade “current mode” combining

 #54
20220158591
2022-05-19

Wideband Doherty power amplifier

 #55
20220149794
2022-05-12

Power amplifier

 #56
20220123698
2022-04-21

Power amplifier circuit

 #57
20220103143
2022-03-31

Power amplification circuit

 #58
20220085776
2022-03-17

Output matching circuit and power amplifier comprised thereof

 #59
20220085775
2022-03-17

Power amplifier system

 #60
20220085774
2022-03-17

Power amplifier system

 #61
20220085772
2022-03-17

Power amplifiers and unmatched power amplifier devices with low baseband impedance terminations

 #62
20220085771
2022-03-17

Hybrid RF integrated circuit device

 #63
20220069785
2022-03-03

High efficiency photoconductive semiconductor switch-based amplifier for high power microwave transmission

 #64
20220069780
2022-03-03

Power amplifier circuit

 #65
20220038063
2022-02-03

Matching circuit

 #66
20220029592
2022-01-27

Dual-mode power amplifier with switchable working power and mode switch method

 #67
20220029004
2022-01-27

Bipolar transistor and radio-frequency power amplifier module

 #68
20220021363
2022-01-20

Variable gain amplifier and phased array transceiver

 #69
20220006426
2022-01-06

Apparatus and methods for biasing of power amplifiers

 #70
20210399698
2021-12-23

Temperature compensation circuit for power amplifier

 #71
20210376804
2021-12-02

Radio frequency (RF) device having tunable RF power amplifier and associated methods

 #72
20210359661
2021-11-18

High-frequency module and communication apparatus

 #73
20210344307
2021-11-04

Load detection circuit and amplifier circuit

 #74
20210344304
2021-11-04

Power amplifier module

 #75
20210336592
2021-10-28

Power amplifier circuit

 #76
20210328558
2021-10-21

Power amplifier circuit

 #77
20210320632
2021-10-14

Power amplifier circuit

 #78
20210288616
2021-09-16

Power amplifier circuit

 #79
20210249360
2021-08-12

Semiconductor device and amplifier having bonding wire and conductive member

 #80
20210226594
2021-07-22

Power control device and method, and storage medium

 #81
20210219419
2021-07-15

Radio frequency module and communication device

 #82
20210211110
2021-07-08

Power amplifier self-heating compensation circuit

 #83
20210203288
2021-07-01

Power amplifying module

 #84
20210203284
2021-07-01

Load insensitive power detection

 #85
20210194443
2021-06-24

Multiple-stage power amplifiers and devices with low-voltage driver stages

 #86
20210194437
2021-06-24

Power amplifier circuitry

 #87
20210184632
2021-06-17

Apparatus and methods for bias switching of power amplifiers

 #88
20210183854
2021-06-17

Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodes

 #89
20210175862
2021-06-10

Amplification circuit and communication device

 #90
20210175860
2021-06-10

Broadband power transistor devices and amplifiers with output T-match and harmonic termination circuits and methods of manufacture thereof

 #91
20210167741
2021-06-03

Amplifier

 #92
20210159865
2021-05-27

Metamaterial based power amplifier module

 #93
20210159864
2021-05-27

Active duplexer

 #94
20210152139
2021-05-20

Power amplifier circuit

 #95
20210143782
2021-05-13

Radio frequency power amplifier and device

 #96
20210126598
2021-04-29

Reducing dynamic error vector magnitude in cascode amplifiers

 #97
20210126595
2021-04-29

Amplifier with integrated gain slope equalizer

 #98
20210119591
2021-04-22

Architecture of radio frequency front-end

 #99
20210099140
2021-04-01

WIDE BANDWIDTH RADIO FREQUENCY (RF) AMPLIFIER

 #100
20210098403
2021-04-01

Semiconductor device

 #101
20210091798
2021-03-25

Radio frequency module and communication device

 #102
20210083080
2021-03-18

Semiconductor device

 #103
20210058043
2021-02-25

Power amplifier circuit, semiconductor device, and method for manufacturing semiconductor device

 #104
20210058038
2021-02-25

Doherty amplifier arrangement

 #105
20210044256
2021-02-11

Power amplifier module

 #106
20210013850
2021-01-14

Amplifier, amplification circuit and phase shifter

 #107
20210013837
2021-01-14

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

 #108
20210006214
2021-01-07

Amplifying apparatus

 #109
20200403586
2020-12-24

Apparatus and methods for power amplifier output matching

 #110
20200403576
2020-12-24

Integrated multiple-path power amplifier

 #111
20200389130
2020-12-10

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

 #112
20200382083
2020-12-03

Power amplifier and compound semiconductor device

 #113
20200382077
2020-12-03

Amplifier

 #114
20200382068
2020-12-03

Amplification apparatus and method

 #115
20200373890
2020-11-26

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

 #116
20200343866
2020-10-29

High frequency circuit and communication device

 #117
20200336108
2020-10-22

Apparatus and methods for bias switching of power amplifiers

 #118
20200336106
2020-10-22

Power amplifier module

 #119
20200328722
2020-10-15

High frequency amplifier

 #120
20200321929
2020-10-08

Radio-frequency module and communication device

 #121
20200304070
2020-09-24

Power amplifier

 #122
20200280286
2020-09-03

Power amplification module

 #123
20200266775
2020-08-20

Amplifier for reusing current by using transformer and method thereof

 #124
20200251579
2020-08-06

Bipolar transistor and radio-frequency power amplifier module

 #125
20200235062
2020-07-23

Semiconductor device

 #126
20200228081
2020-07-16

Bi-directional variable gain active combiner and splitter

 #127
20200228067
2020-07-16

Power amplifier circuit

 #128
20200228064
2020-07-16

Apparatus and methods for biasing of power amplifiers

 #129
20200203844
2020-06-25

Electromagnetic wave radiator

 #130
20200195213
2020-06-18

Power amplification module

 #131
20200194368
2020-06-18

Transistor with non-circular via connections in two orientations

 #132
20200186097
2020-06-11

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

 #133
20200186096
2020-06-11

Power amplifier with integrated bias circuit having multi-point input

 #134
20200186094
2020-06-11

Power amplifier module

 #135
20200144968
2020-05-07

Multiple-path RF amplifiers with angularly offset signal path directions, and methods of manufacture thereof

 #136
20200127623
2020-04-23

Auto-zero technique for opamps with a source-follower output stage based on replica referencing

 #137
20200127620
2020-04-23

Power amplifier and electronic device

 #138
20200119695
2020-04-16

Power amplifier circuit

 #139
20200118922
2020-04-16

Transistor with non-circular via connections in two orientations

 #140
20200076391
2020-03-05

Power amplifier self-heating compensation circuit

 #141
20200076374
2020-03-05

Methods and apparatus for voltage buffering

 #142
20200052664
2020-02-13

MATRIX POWER AMPLIFIER

 #143
20200027876
2020-01-23

Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodes

 #144
20200014334
2020-01-09

Power amplification circuit

 #145
20190372533
2019-12-05

Wideband low noise amplifier (LNA) with a reconfigurable bandwidth for millimeter-wave 5G communication

 #146
20190356281
2019-11-21

Power amplifier

 #147
20190334560
2019-10-31

Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5G communication

 #148
20190326191
2019-10-24

Semiconductor device

 #149
20190319093
2019-10-17

Integrated RF front end system

 #150
20190296777
2019-09-26

Multi-mode multi-band self-realigning power amplifier

 #151
20190296694
2019-09-26

High-frequency front end circuit

 #152
20190288651
2019-09-19

Matrix power amplifier

 #153
20190280654
2019-09-12

Method and system for linearizing an amplifier using transistor-level dynamic feedback

 #154
20190273470
2019-09-05

CURRENT CONTROL USING POWER CELL ISOLATION

 #155
20190260400
2019-08-22

Power amplification module

 #156
20190253027
2019-08-15

Continuous-mode harmonically tuned power amplifier output networks and systems including same

 #157
20190230132
2019-07-25

Access control to a voice service by a wireless access point

 #158
20190229682
2019-07-25

Low Dropout Voltage Regulator for Highly Linear Radio Frequency Power Amplifiers

 #159
20190229681
2019-07-25

Power amplifier module

 #160
20190215023
2019-07-11

Load modulation in signal transmission

 #161
20190214946
2019-07-11

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

 #162
20190199293
2019-06-27

Power amplifying apparatus with wideband linearity

 #163
20190181816
2019-06-13

Power amplifier module

 #164
20190173439
2019-06-06

Power amplifier circuit

 #165
20190173430
2019-06-06

Multiple-path amplifier with series component along inverter between amplifier outputs

 #166
20190158044
2019-05-23

Power amplifier and compound semiconductor device

 #167
20190158039
2019-05-23

Power amplifier module

 #168
20190140598
2019-05-09

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

 #169
20190140596
2019-05-09

Power amplification module

 #170
20190123702
2019-04-25

METHODS OF ADJUSTING BAND-BASED AMPLIFIER LINEARITY

 #171
20190102498
2019-04-04

Transistor amplifiers having node splitting for loop stability and related methods

 #172
20190097590
2019-03-28

Power amplification circuit

 #173
20190097586
2019-03-28

Mixed-signal power amplifier and transmission systems and methods

 #174
20190089314
2019-03-21

Methods and apparatuses for ruggedizing a power amplifier against breakdown using harmonic tuning

 #175
20190088768
2019-03-21

Bipolar transistor and radio-frequency power amplifier module

 #176
20190074862
2019-03-07

High selectivity TDD RF front end

 #177
20190074802
2019-03-07

Low noise amplifier

 #178
20190068142
2019-02-28

Semiconductor device

 #179
20190068132
2019-02-28

Power amplifier circuit

 #180
20190058444
2019-02-21

Power amplifier module

 #181
20190036488
2019-01-31

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

 #182
20190036487
2019-01-31

Four-way Doherty amplifier and mobile telecommunications base station

 #183
20190020316
2019-01-17

Integrated ultra-compact VSWR insensitive coupler

 #184
20190006996
2019-01-03

Envelope tracking frontend device and switch thereof

 #185
20190006994
2019-01-03

Power amplifier circuit

 #186
20180375485
2018-12-27

Power amplification module

 #187
20180367105
2018-12-20

Power amplifier module

 #188
20180367104
2018-12-20

Interstage matching network

 #189
20180351518
2018-12-06

Power amplification circuit

 #190
20180351517
2018-12-06

Hybrid RF transceiver circuit

 #191
20180343027
2018-11-29

Transceiving device

 #192
20180343022
2018-11-29

Power amplification module

 #193
20180337638
2018-11-22

High-frequency front end circuit

 #194
20180331664
2018-11-15

Multi-stage high frequency amplifier

 #195
20180316327
2018-11-01

Power amplifier self-heating compensation circuit

 #196
20180316311
2018-11-01

Apparatus and methods for bias switching of power amplifiers

 #197
20180302045
2018-10-18

Power amplifier module

 #198
20180294788
2018-10-11

Power amplification module

 #199
20180248521
2018-08-30

Multiple-stage RF amplifier devices

 #200
20180241349
2018-08-23

Power amplifier module

 #201
20180227003
2018-08-09

Transmission module and transmission and reception module

 #202
20180226933
2018-08-09

Power amplifier module

 #203
20180212578
2018-07-26

Power amplification module

 #204
20180205154
2018-07-19

Electromagnetic wave radiator

 #205
20180183392
2018-06-28

Gallium nitride power amplifier

 #206
20180175802
2018-06-21

Amplifiers and amplifier modules with shunt inductance circuits that include high-Q capacitors

 #207
20180175801
2018-06-21

Inter-stage network for radio frequency amplifier

 #208
20180175799
2018-06-21

Doherty amplifiers and amplifier modules with shunt inductance circuits that affect transmission line length between carrier and peaking amplifier outputs

 #209
20180159479
2018-06-07

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

 #210
20180159478
2018-06-07

POWER AMPLIFICATION SYSTEM WITH PROGRAMMABLE LOAD LINE

 #211
20180152145
2018-05-31

Power amplification circuit

 #212
20180138868
2018-05-17

METHOD AND SYSTEM FOR LINEARIZING AN AMPLIFIER USING TRANSISTOR-LEVEL DYNAMIC FEEDBACK

 #213
20180130876
2018-05-10

Integrated RF front end system

 #214
20180123538
2018-05-03

Source follower based envelope tracking for power amplifier biasing

 #215
20180123532
2018-05-03

Differential source follower driven power amplifier

 #216
20180123518
2018-05-03

Multi-mode power amplifiers with phase matching

 #217
20180097484
2018-04-05

Matrix power amplifier

 #218
20180091114
2018-03-29

Quasi-differential RF power amplifier with high level of harmonics rejection

 #219
20180069574
2018-03-08

Transmission module and transmission and reception module

 #220
20180062592
2018-03-01

Reconfigurable power amplifier

 #221
20180062580
2018-03-01

Output power cell for cascode amplifiers

 #222
20180034423
2018-02-01

Power amplifier module

 #223
20180034414
2018-02-01

Active bias circuit for power amplifier, and mobile terminal

 #224
20180026582
2018-01-25

Power amplifier circuit

 #225
20180019711
2018-01-18

Mixed-signal power amplifier and transmission systems and methods

 #226
20180013391
2018-01-11

Multiple-path RF amplifiers with angularly offset signal path directions, and methods of manufacture thereof

 #227
20180006611
2018-01-04

Doherty amplifier circuits

 #228
20180006608
2018-01-04

BIAS CIRCUIT

 #229
20170366149
2017-12-21

Radio frequency power amplifier

 #230
20170359046
2017-12-14

Amplifier

 #231
20170359038
2017-12-14

Power amplifier circuit

 #232
20170310286
2017-10-26

Power amplification circuit

 #233
20170310281
2017-10-26

Power amplifier module

 #234
20170302234
2017-10-19

Circuit for amplifying radio signal using high frequency

 #235
20170288616
2017-10-05

Power amplification circuit

 #236
20170288614
2017-10-05

High-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication apparatus

 #237
20170288611
2017-10-05

Power amplification module

 #238
20170279413
2017-09-28

Power amplification circuit

 #239
20170271258
2017-09-21

High power MMIC devices having bypassed gate transistors

 #240
20170264253
2017-09-14

Power amplifier with input power protection circuits

 #241
20170257069
2017-09-07

Systems for amplifying a signal using a transformer matched transistor

 #242
20170244373
2017-08-24

Power amplifier module

 #243
20170244367
2017-08-24

High linearity inductorless LNA

 #244
20170243939
2017-08-24

Heterojunction bipolar transistor

 #245
20170237407
2017-08-17

Transformer based impedance matching network and related power amplifier, ADPLL and transmitter based thereon

 #246
20170237400
2017-08-17

Power amplifier

 #247
20170236796
2017-08-17

BUMP-EQUIPPED ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING BUMP-EQUIPPED ELECTRONIC COMPONENT

 #248
20170230013
2017-08-10

Power amplification circuit

 #249
20170207756
2017-07-20

Power amplification module

 #250
20170207752
2017-07-20

Amplifier with base current reuse

 #251
20170179911
2017-06-22

Power amplification module

 #252
20170170792
2017-06-15

Broadband power amplifier systems and methods

 #253
20170170789
2017-06-15

Power amplifier circuit

 #254
20170163229
2017-06-08

Power amplification module

 #255
20170163218
2017-06-08

Low dropout voltage regulator for highly linear radio frequency power amplifiers

 #256
20170149400
2017-05-25

Band-based amplifier linearity adjustment

 #257
20170149390
2017-05-25

Cascode power amplifier with switchable output matching network

 #258
20170099034
2017-04-06

Power amplifier module

 #259
20170093340
2017-03-30

Apparatus and methods for capacitive load reduction in a mobile device

 #260
20170093339
2017-03-30

Apparatus and methods for multi-mode power amplifiers

 #261
20170085232
2017-03-23

Power amplification module

 #262
20170063308
2017-03-02

Devices and methods that facilitate power amplifier off state performance

 #263
20170047956
2017-02-16

Multi-path low-noise amplifier and associated low-noise amplifier module and receiver

 #264
20170040954
2017-02-09

Method and system for linearizing an amplifier using transistor-level dynamic feedback

 #265
20170033747
2017-02-02

Power amplification system with programmable load line

 #266
20170026000
2017-01-26

LINEARIZING CIRCUIT AND METHOD FOR AMPLIFIER

 #267
20170019082
2017-01-19

Power amplification module

 #268
20170019076
2017-01-19

Process-compensated HBT power amplifier bias circuits and methods

 #269
20170018607
2017-01-19

Integrated RF front end system

 #270
20170012588
2017-01-12

Apparatus and methods for tunable power amplifiers

 #271
20160380603
2016-12-29

Flip-chip amplifier with termination circuit

 #272
20160344347
2016-11-24

Method for improving circuit stability

 #273
20160322947
2016-11-03

Power amplification module

 #274
20160322944
2016-11-03

Power amplification module

 #275
20160294328
2016-10-06

Power amplifier module

 #276
20160285426
2016-09-29

Power amplifiers with tunable notches

 #277
20160285423
2016-09-29

Power amplification module

 #278
20160276980
2016-09-22

Power amplifier and method of controlling output of power amplifier

 #279
20160233841
2016-08-11

Amplifier

 #280
20160233839
2016-08-11

Low noise amplifier

 #281
20160190991
2016-06-30

Low noise amplifier

 #282
20160181984
2016-06-23

Quasi-switched, multi-band, high-power amplifier and method

 #283
20160118943
2016-04-28

Apparatus and methods for capacitive load reduction of an envelope tracker

 #284
20160112014
2016-04-21

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