ClassID:

219663

H03F2200/492 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A coil being added in the source circuit of a transistor amplifier stage as degenerating element

Recent Application in this class:
#1
20250385645
2025-12-18

MULTIPLE COIL LOW NOISE AMPLIFIER WITH TRANSIMPEDANCE FOR HIGH FREQUENCY RADIO

#2
20250260370
2025-08-14

Cascode Amplifier Bias Circuits

#3
20240364269
2024-10-31

Source Switched Split LNA

#4
20240348211
2024-10-17

Cascode amplifier bias circuits

#5
20240171145
2024-05-23

Tunable Effective Inductance for Multi-Gain LNA with Inductive Source Degeneration

#6
20240146272
2024-05-02

Optimized Multi Gain LNA Enabling Low Current and High Linearity Including Highly Linear Active Bypass

#7
20240039482
2024-02-01

BROADBAND LNA STRUCTURE USING OFFSET ACTIVE COUPLED SEGMENTS

#8
20240022220
2024-01-18

Drain sharing split LNA

#9
20230387864
2023-11-30

Cascode amplifier bias circuits

#10
20230107218
2023-04-06

Drain sharing split LNA

#11
20220368287
2022-11-17

Cascode amplifier bias circuits

#12
20220231648
2022-07-21

Tunable effective inductance for multi-gain LNA with inductive source degeneration

#13
20220173708
2022-06-02

Optimized multi gain LNA enabling low current and high linearity including highly linear active bypass

#14
20210336584
2021-10-28

Source switched split LNA

#15
20210135636
2021-05-06

Drain sharing split LNA

#16
20210013841
2021-01-14

Cascode amplifier bias circuits

#17
20200328724
2020-10-15

Optimized multi gain LNA enabling low current and high linearity including highly linear active bypass

#18
20200144967
2020-05-07

Source switched split LNA

#19
20200083849
2020-03-12

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

#20
20190263712
2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

#21
20190245497
2019-08-08

Drain sharing split LNA

#22
20190158031
2019-05-23

Cascode amplifier bias circuits

#23
20190020322
2019-01-17

Optimized multi gain LNA enabling low current and high linearity including highly linear active bypass

#24
20180302039
2018-10-18

Source switched split LNA

#25
20180198429
2018-07-12

Amplification circuit

#26
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

#27
20180175807
2018-06-21

LNA with programmable linearity

#28
20180167048
2018-06-14

Impedance matching circuit of communication apparatus

#29
20180097481
2018-04-05

Fully integrated low-noise amplifier

#30
20180083578
2018-03-22

Cascode amplifier bias circuits

#31
20180062591
2018-03-01

High-frequency amplifier module

#32
20170264251
2017-09-14

Circuits, devices and methods for reducing co-channel interference

#33
20170170788
2017-06-15

Low-noise amplifier, folded low-noise amplifier and amplifier circuit module

#34
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

#35
20170093343
2017-03-30

Amplifier circuits

#36
20170070198
2017-03-09

Apparatus and methods for radio frequency amplifiers

#37
20170019075
2017-01-19

RF amplifier

#38
20160233905
2016-08-11

Tunable radio frequency low noise amplifier

#39
20160233843
2016-08-11

Amplifier with integral notch filter

#40
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

#41
20160126990
2016-05-05

Diversity receive modules using one or more shared tunable notch filters for transmit blocker rejection

#42
20160126906
2016-05-05

Low noise amplifier

#43
20160087592
2016-03-24

Single-end amplifier and noise cancelling method thereof

#44
20150364242
2015-12-17

Inductor structure and application thereof

#45
20150351131
2015-12-03

Cross-connected cascode low noise amplifier for carrier aggregation

#46
20150180423
2015-06-25

Distortion cancellation for low noise amplifier (LNA) non-linear second order products

#47
20150061768
2015-03-05

High speed amplifier

#48
20150038093
2015-02-05

Tunable radio frequency low noise amplifier

#49
20140348274
2014-11-27

Receiver front end for carrier aggregation

#50
20140347136
2014-11-27

Apparatus and methods for radio frequency amplifiers

#51
20140333384
2014-11-13

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

#52
20140300417
2014-10-09

Amplifiers with boosted or deboosted source degeneration inductance

#53
20140266461
2014-09-18

Split amplifiers with improved linearity

#54
20140253242
2014-09-11

Amplifiers with inductive degeneration and configurable gain and input matching

#55
20140218114
2014-08-07

Complementary low noise transductor with active single ended to differential signal conversion

#56
20140213209
2014-07-31

Single-input multiple-output amplifiers with independent gain control per output

#57
20140197892
2014-07-17

On-die harmonics filtering for radio frequency power amplifiers

#58
20140113578
2014-04-24

Amplifiers with noise splitting

#59
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

#60
20130314164
2013-11-28

Low-noise amplifier with impedance boosting circuit

#61
20130271223
2013-10-17

Amplifier with floating well

#62
20130169364
2013-07-04

Amplifier and transceiver including the amplifier

#63
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

#64
20130128779
2013-05-23

Amplifying circuit and wireless communications apparatus including the same

#65
20130127544
2013-05-23

Amplifier circuit

#66
20130127539
2013-05-23

CMOS integrated circuit and amplifying circuit

#67
20130127538
2013-05-23

CMOS INTEGRATED CIRCUIT AND AMPLIFYING CIRCUIT

#68
20130093516
2013-04-18

Low output impedance RF amplifier

#69
20120286878
2012-11-15

Apparatus and methods for electronic amplification

#70
20120194276
2012-08-02

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

#71
20120194267
2012-08-02

Distributed amplifier for band pass radio front-end

#72
20120154056
2012-06-21

Method and apparatus for canceling balun amplifier noise

#73
20120154047
2012-06-21

Low-noise amplifier

#74
20120032743
2012-02-09

Low-noise amplifier with gain enhancement

#75
20120032742
2012-02-09

CMOS millimeter-wave variable-gain low-noise amplifier

#76
20110279184
2011-11-17

Area efficient concurrent matching transceiver

#77
20110148526
2011-06-23

Low noise amplifier with variable frequency response

#78
20110133838
2011-06-09

Low output impedance RF amplifier

#79
20110037518
2011-02-17

Amplifiers with improved linearity and noise performance

#80
20110018635
2011-01-27

Multi-mode low noise amplifier with transformer source degeneration

#81
20100321113
2010-12-23

Low noise amplifier

#82
20100315151
2010-12-16

Power control circuit

#83
20100244948
2010-09-30

Multiple-input and multiple-output amplifier using mutual induction in the feedback network

#84
20100216411
2010-08-26

MICROWAVE AND/OR MILLIMETER-WAVE BAND AMPLIFIER CIRCUIT, AND MILLIMETER-WAVE TRANSCEIVER USING THEM

#85
20100201450
2010-08-12

Controlling amplifier input impedance

#86
20100194449
2010-08-05

Circuitry and method for reducing second and third-order nonlinearities

#87
20100189194
2010-07-29

FREQUENCY GENERATION CIRCUIT

#88
20100188133
2010-07-29

POWER CONTROL CIRCUIT

#89
20100182093
2010-07-22

SINGLE-ENDED TO DIFFERENTIAL CONVERTING APPARATUS AND RF RECEIVING APPARATUS

#90
20100148873
2010-06-17

Techniques for improving amplifier linearity

#91
20100103572
2010-04-29

Amplifier with improved ESD protection circuitry

#92
20100046677
2010-02-25

Amplifier with single-ended input and differential output

#93
20100019848
2010-01-28

Complementary low noise transductor with active single ended to differential signal conversion

#94
20090261900
2009-10-22

Apparatus for coupling at least one of a plurality of amplified input signals to an output terminal using a directional coupler

#95
20090251176
2009-10-08

Frequency divider circuits

#96
20090206935
2009-08-20

Reconfigurable circuit to compensate for a low noise amplification input matching variation and a method for its configuration

#97
20090206932
2009-08-20

Low noise amplifier gain controlled scheme

#98
20090189696
2009-07-30

Low-noise amplifier

#99
20090174481
2009-07-09

Multi-linearity mode LNA having a deboost current path

#100
20090085671
2009-04-02

Load inductor sharing

#101
20090085670
2009-04-02

Multiband output impedance matching circuit having passive devices, amplifier including multiband input impedance matching circuit having passive devices, and amplifier including multiband input/output impedance matching circuit having passive devices

#102
20090085668
2009-04-02

Inductor sharing in radio frequency communications

#103
20090054004
2009-02-26

Biasing for Stacked Circuit Configurations

#104
20080309413
2008-12-18

Gain switching low-noise amplifier circuit

#105
20080297259
2008-12-04

Configurable, variable gain LNA for multi-band RF receiver

#106
20080290947
2008-11-27

Reconfigurable tunable RF power amplifier

#107
20080258779
2008-10-23

Semiconductor integrated circuit

#108
20080242257
2008-10-02

FIELD EFFECT TRANSISTOR AMPLIFIER WITH LINEARIZATION

#109
20080238551
2008-10-02

Amplifier circuit

#110
20080231369
2008-09-25

Variable-gain low-noise amplifier

#111
20080204142
2008-08-28

Low noise amplifier

#112
20080164946
2008-07-10

Coupling net and MMIC amplifier

#113
20080143445
2008-06-19

Power amplifier

#114
20080136529
2008-06-12

Power amplifier with nonlinear compensation, and method thereof

#115
20080061887
2008-03-13

Apparatus for converting single-ended signal into differential signal

#116
20080042742
2008-02-21

Distortion Nulling for Single-Ended High Dynamic Range RF Amplifier

#117
20080007357
2008-01-10

High frequency stabilization network for microwave devices and monolithic integrated circuits

#118
20080001673
2008-01-03

Semiconductor device

#119
20070290754
2007-12-20

Push-pull amplifier and method for low noise amplification

#120
20070287404
2007-12-13

Apparatus and method for exploiting reverse short channel effects in transistor devices

#121
20070229154
2007-10-04

Differential amplifier with active post-distortion linearization

#122
20070205829
2007-09-06

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

#123
20070063746
2007-03-22

Active load arrangement

#124
20060091962
2006-05-04

Amplifier circuit having improved linearity and frequency band using multiple gated transistor

#125
20060071735
2006-04-06

Input impedance matching circuit for low noise amplifier

#126
20060066412
2006-03-30

AC coupling technique for improved noise performance and simple biasing

#127
20050231290
2005-10-20

Multi-band low noise amplifier system

#128
20050176399
2005-08-11

Field effect transistor amplifier with linearization

#129
20050110575
2005-05-26

Gain stabilization technique for narrow band integrated low noise amplifiers

#130
20050062540
2005-03-24

Amplifier and frequency converter