ClassID:

219518

H03F2200/06 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A balun, i.e. balanced to or from unbalanced converter, being present at the input of an amplifier

Recent Application in this class:
#1
20260149415
2026-05-28

BALUN AND POWER AMPLIFYING CIRCUIT

#2
20260128717
2026-05-07

LOW NOISE AMPLIFIER AND ELECTRONIC DEVICE USING LOW NOISE AMPLIFIER IN WIRELESS COMMUNICATION SYSTEM

#3
20260066859
2026-03-05

BALUN AND POWER AMPLIFIER CIRCUIT

#4
20260045915
2026-02-12

AMPLIFIER CIRCUIT

#5
20260019052
2026-01-15

WIDE BAND AMPLIFIER WITH BULK RESISTANCE

#6
20250392272
2025-12-25

RECONFIGURABLE POWER AMPLIFIERS WITH CONTROLLABLE OUTPUT CAPACITANCE

#7
20250385653
2025-12-18

RADIO-FREQUENCY DIFFERENTIAL AMPLIFYING CIRCUIT AND RADIO-FREQUENCY MODULE

#8
20250336592
2025-10-30

BALUN DESIGN FOR ULTRA HIGH BAND

#9
20250183864
2025-06-05

LOW NOISE AMPLIFIERS WITH GAIN STEPS PROVIDED BY BYPASS STAGE AND CURRENT STEERING

#10
20250132731
2025-04-24

DOHERTY POWER AMPLIFIER AND ELECTRONIC DEVICE INCLUDING THE SAME

#11
20250105794
2025-03-27

POWER AMPLIFICATION DEVICE

#12
20250080067
2025-03-06

BANDWIDTH TUNING USING SINGLE-INPUT MULTIPLE-OUTPUT LOW-NOISE AMPLIFIER

#13
20250070733
2025-02-27

RF PUSH-PULL POWER AMPLIFIER CHIP AND RF FRONT-END MODULE

#14
20240396516
2024-11-28

BALANCED-TO-UNBALANCED TRANSFORMER CIRCUIT, BALANCED-TO-UNBALANCED IMPEDANCE TRANSFORMER CIRCUIT, AND RADIO-FREQUENCY POWER AMPLIFIER

#15
20240313724
2024-09-19

AMPLIFICATION DEVICE

#16
20240162871
2024-05-16

BALANCED-UNBALANCED TRANSFORMER CIRCUIT AND AMPLIFIER CIRCUIT

#17
20240162870
2024-05-16

BALANCED-UNBALANCED TRANSFORMER CIRCUIT AND AMPLIFIER CIRCUIT

#18
20240146261
2024-05-02

RADIO-FREQUENCY CIRCUIT, RADIO-FREQUENCY MODULE, AND COMMUNICATION DEVICE

#19
20240146251
2024-05-02

DIFFERENTIAL DOHERTY AMPLIFIER CIRCUIT

#20
20240106396
2024-03-28

Push-Pull Amplifying Unit and Doherty Amplifier Comprising the Same

#21
20240039489
2024-02-01

ELECTRONIC DEVICE COMPRISING POWER AMPLIFIER AND METHOD FOR OPERATING SAME

#22
20230396218
2023-12-07

High millimeter-wave Frequency Gain-Boosting Power Amplifier with Differential Complex Neutralization Feedback Network

#23
20230344395
2023-10-26

POWER AMPLIFIER SYSTEMS WITH LOAD CONTROL

#24
20230318539
2023-10-05

24 to 30GHZ wide band CMOS power amplifier with turn-off mode high impedance

#25
20230318538
2023-10-05

POWER AMPLIFIER CIRCUIT

#26
20230246658
2023-08-03

Differential output circuits with configurable harmonic reduction circuits and methods of operation thereof

#27
20230134681
2023-05-04

APPARATUS AND METHODS FOR RADIO FREQUENCY AMPLIFIERS

#28
20230134242
2023-05-04

DIFFERENTIAL AMPLIFYING APPARATUS

#29
20230114571
2023-04-13

GAIN BOOSTING IN POWER AMPLIFIERS USING RF-COUPLED FEEDBACK

#30
20230105489
2023-04-06

POWER AMPLIFIER SYSTEM WITH REDUCED GAIN VARIATION FOR ENVELOPE TRACKING APPLICATIONS

#31
20230104305
2023-04-06

POWER AMPLIFIER SYSTEM WITH REDUCED GAIN VARIATION AND PUSH-PULL STAGE NEUTRALIZATION

#32
20230095653
2023-03-30

Low noise amplifiers with gain steps provided by bypass stage and current steering

#33
20230033265
2023-02-02

RADIO-FREQUENCY DIFFERENTIAL AMPLIFYING CIRCUIT AND RADIO-FREQUENCY MODULE

#34
20220416731
2022-12-29

Monolithic microwave integrated circuits tolerant to electrical overstress

#35
20220376733
2022-11-24

RECONFIGURABLE POWER AMPLIFIERS WITH CONTROLLABLE OUTPUT CAPACITANCE

#36
20220376662
2022-11-24

RECONFIGURABLE POWER AMPLIFIERS WITH CONTROLLABLE INPUT CAPACITANCE

#37
20220200543
2022-06-23

Power amplifiers and transmission systems and methods of broadband and efficient operations

#38
20220189936
2022-06-16

Semiconductor device and semiconductor module

#39
20220060155
2022-02-24

24 to 30GHz wide band CMOS power amplifier with turn-off mode high impedance

#40
20220052657
2022-02-17

RF power amplifier with balun transformer

#41
20220029588
2022-01-27

Matching circuit with switchable load lines, load line switching method and power amplifier

#42
20220014159
2022-01-13

Push-pull class E amplifier

#43
20220006437
2022-01-06

Power amplifying circuit

#44
20210320626
2021-10-14

Quadrature combined Doherty amplifiers

#45
20210281224
2021-09-09

Amplifier

#46
20210242897
2021-08-05

Radio front end module with reduced loss and increased linearity

#47
20210194451
2021-06-24

Wideband balun

#48
20210159579
2021-05-27

Tapered broadband balun

#49
20210135657
2021-05-06

Active balun circuit, power amplifier circuit, and power amplifier module

#50
20210135639
2021-05-06

Radio frequency (RF) amplifier

#51
20210135631
2021-05-06

Wideband power combiner and splitter

#52
20210020589
2021-01-21

Coupled line structures for wideband applications

#53
20200382070
2020-12-03

Quadrature combined doherty amplifiers

#54
20200350875
2020-11-05

Microwave amplifiers tolerant to electrical overstress

#55
20200336113
2020-10-22

Wideband power combiner and splitter

#56
20200220516
2020-07-09

Wideband balun

#57
20200169285
2020-05-28

Radio front end module with reduced loss and increased linearity

#58
20200124704
2020-04-23

1/f Noise Cancellation in Pulsed UWB Radar Radio Receiver IC

#59
20200106453
2020-04-02

Passive conjunction circuit and voltage measurement circuit

#60
20200052664
2020-02-13

MATRIX POWER AMPLIFIER

#61
20190288651
2019-09-19

Matrix power amplifier

#62
20190273475
2019-09-05

Apparatus and methods for low noise amplifiers

#63
20190207572
2019-07-04

Down-conversion mixer

#64
20190207567
2019-07-04

High frequency signal amplifier including balun

#65
20190199292
2019-06-27

Envelope detecting circuit

#66
20190190482
2019-06-20

Radio-frequency apparatus with multi-band balun and associated methods

#67
20190166557
2019-05-30

Wireless receiving device, wake-up receiver and method for calibrating a frequency and a bandwidth

#68
20190165739
2019-05-30

Quadrature combined doherty amplifiers

#69
20190165738
2019-05-30

Wideband power combiner and splitter

#70
20190158133
2019-05-23

Low power wake-up receiver

#71
20190149094
2019-05-16

Power amplifiers isolated by differential ground

#72
20190123696
2019-04-25

Low noise amplifier and radio frequency amplification method using the same

#73
20190115876
2019-04-18

Power amplifier with nulling monitor circuit

#74
20190097586
2019-03-28

Mixed-signal power amplifier and transmission systems and methods

#75
20180323821
2018-11-08

Communications device with receiver chain of reduced size

#76
20180309419
2018-10-25

Differential amplifier

#77
20180309411
2018-10-25

Push-pull amplification systems and methods

#78
20180302050
2018-10-18

Multi-way power amplifier circuit

#79
20180241352
2018-08-23

Apparatus and method for improving efficiency of power amplifier

#80
20180205467
2018-07-19

Interference suppression system and method

#81
20180159573
2018-06-07

Method and system for a configurable low-noise amplifier with programmable band-selection filters

#82
20180159572
2018-06-07

Method and system for a configurable low-noise amplifier with programmable band-selection filters

#83
20180145648
2018-05-24

Apparatus and methods for low noise amplifiers

#84
20180131350
2018-05-10

Phase-switch-equipped variable amplification device and phase shifter

#85
20180115283
2018-04-26

ENVELOPE DETECTING CIRCUIT

#86
20180097484
2018-04-05

Matrix power amplifier

#87
20180076778
2018-03-15

Scaleable RF tuned low noise amplifier

#88
20180076770
2018-03-15

Power amplifier systems with differential ground

#89
20180054222
2018-02-22

Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter

#90
20180048294
2018-02-15

Systems and methods providing an intermodulation distortion sink

#91
20180034420
2018-02-01

Amplifier adapted for noise suppression

#92
20180019711
2018-01-18

Mixed-signal power amplifier and transmission systems and methods

#93
20170222615
2017-08-03

Apparatus and method to balance the parasitic capacitances between metal tracks on an integrated circuit chip

#94
20170149389
2017-05-25

Current-mode power amplifier

#95
20170117870
2017-04-27

Matching network circuit, and associated apparatus with shared matching network circuit

#96
20170077873
2017-03-16

Power amplifier cell

#97
20170063405
2017-03-02

Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter

#98
20170040951
2017-02-09

Amplifier adapted for noise suppression

#99
20170026023
2017-01-26

Balun transformer

#100
20170012652
2017-01-12

Tunable balun

#101
20170005630
2017-01-05

Scaleable RF tuned low noise amplifier

#102
20160359459
2016-12-08

Circuits for low noise amplifiers with interferer reflecting loops

#103
20160226460
2016-08-04

Method and system for a configurable low-noise amplifier with programmable band-selection filters

#104
20160065398
2016-03-03

Communication over a voltage isolation barrier

#105
20160065317
2016-03-03

Methods and circuitry to trim common mode transient control circuitry

#106
20160065156
2016-03-03

Methods and circuitry to provide common mode transient immunity

#107
20160036400
2016-02-04

Integrated circuit chip for receiver collecting signals from satellites

#108
20150365052
2015-12-17

RF-input / RF-output outphasing amplifier

#109
20150311873
2015-10-29

Radio frequency power amplifier and method for increasing power added efficiency and linearity

#110
20150084688
2015-03-26

Baseband processing circuitry

#111
20150042340
2015-02-12

Apparatus and method for amplifying a radio-frequency signal

#112
20140375386
2014-12-25

Low-noise amplifier circuit

#113
20140361834
2014-12-11

Four LC element balun

#114
20140312972
2014-10-23

High-frequency amplifier circuit, semiconductor device, and magnetic recording and reproducing device

#115
20140232589
2014-08-21

Receiver circuit, phased-array receiver and radar system

#116
20140226378
2014-08-14

Transmission-line resistance compression networks and related techniques

#117
20140225675
2014-08-14

Apparatus for a radio frequency integrated circuit

#118
20140167864
2014-06-19

Tunable wide band driver amplifier

#119
20140125126
2014-05-08

Power distribution circuit

#120
20140049320
2014-02-20

Power amplifier circuit

#121
20140015609
2014-01-16

Wide bandwidth radio frequency amplier having dual gate transistors

#122
20130281043
2013-10-24

Low noise amplifier

#123
20130265108
2013-10-10

Extremely high frequency dual-mode class AB power amplifier

#124
20130250536
2013-09-26

Electronic device

#125
20130043955
2013-02-21

Signal amplification circuits for receiving/transmitting signals according to input signal

#126
20130040586
2013-02-14

System and method for improving power efficiency of a transmitter

#127
20130033312
2013-02-07

Single-ended to differential amplifier

#128
20120319782
2012-12-20

Class E power amplifier

#129
20120295556
2012-11-22

Signal transceiver

#130
20120235746
2012-09-20

Amplifier

#131
20120188010
2012-07-26

High frequency power amplifier

#132
20120056681
2012-03-08

Signal amplification circuits for receiving/transmitting signals according to input signal

#133
20120033656
2012-02-09

Integrated bluetooth and wireless LAN transmitters having simultaneous bluetooth and wireless LAN transmissions

#134
20120032741
2012-02-09

Integrated bluetooth and wireless LAN transceivers having merged low noise and power amplifier

#135
20120001690
2012-01-05

System for driver amplifier

#136
20110309883
2011-12-22

Integrated linear power detection in an RF power amplifier

#137
20110304395
2011-12-15

POWER AMPLIFIER

#138
20110304391
2011-12-15

Decade bandwidth planar MMIC four port transformer

#139
20110187453
2011-08-04

Linearizer incorporating a phase shifter

#140
20110150038
2011-06-23

SYSTEM AND METHOD FOR UWB TRANSMISSION PREDISTORTION AND RF WIRE-BOND INTERFACE TECHNIQUE RELATED APPLICATION

#141
20110133835
2011-06-09

Double transformer balun for maximum power amplifier power

#142
20100271128
2010-10-28

Composite differential RF power amplifier layout

#143
20100244963
2010-09-30

Amplifier circuit and the controlling method thereof

#144
20100052784
2010-03-04

Low noise amplifier

#145
20100041361
2010-02-18

Method and system for a single-ended input low noise amplifier with differential output

#146
20100033253
2010-02-11

Techniques for improving balun loaded-Q

#147
20100007416
2010-01-14

Wideband differential amplifier including single-ended amplifiers coupled to a four-port transformer

#148
20090134951
2009-05-28

Broadband reciprocal active balun structure

#149
20080309411
2008-12-18

Radio frequency signal amplifying device

#150
20080272849
2008-11-06

Active baluns

#151
20080252381
2008-10-16

Transformer circuit

#152
20080218263
2008-09-11

Widebrand differential amplifier including single-ended amplifiers coupled to a four-port transformer

#153
20080122538
2008-05-29

Wideband active balun circuit based on differential amplifier

#154
20070213027
2007-09-13

Integrated low noise amplifier

#155
20070069717
2007-03-29

Self-shielded electronic components

#156
20060119433
2006-06-08

High frequency amplifier

#157
20060049872
2006-03-09

Non-match power amplifier and method for increased output 1 dB compression point

#158
20050270106
2005-12-08

Power amplification circuit for output terminal of an RFIC

#159
20050249310
2005-11-10

Circuit for converting a differential signal into a non-differential signal, and RF transmitter comprising such a circuit

#160
20050237112
2005-10-27

Even order distortion elimination in push-pull or differential amplifiers and circuits

#161
20050206490
2005-09-22

Double transformer balun for maximum power amplifier power

#162
20050057305
2005-03-17

Radio frequency low noise amplifier with automatic gain control

#163
20050043007
2005-02-24

Integrated low noise amplifier

#164
20050043006
2005-02-24

Radio frequency integrated circuit having symmetrical differential layout

#165
20050043004
2005-02-24

Communication apparatus, electronic equipment with communication functions, communication function circuit, amplifier circuit and balun circuit

#166
15916897
2019-05-28

Balanced RF amplifier using a common mode choke

#167
15826536
2018-06-19

Wireless radio frequency transceiver system for internet of things

#168
15466112
2018-08-21

Balanced distributed power amplifier for monolithic microwave integrated circuit

#169
15437735
2018-03-13

Low noise amplifier for carrier aggregation and apparatus including the same

#170
14574008
2016-05-24

Wideband baluns and methods of their manufacture