ClassID:

219680

H03F2200/54 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers Two or more capacitor coupled amplifier stages in cascade

Recent Application in this class:
#1
20260163530
2026-06-11

RADIO FREQUENCY AMPLIFIER WITH DOUBLE CASCODE STRUCTURE

#2
20260135519
2026-05-14

FLOATING INVERTER AMPLIFIER BASED ON CAPACITOR STACKING AND APPLICATION THEREOF

#3
20250337378
2025-10-30

POWER AMPLIFIER COMBINER

#4
20250167736
2025-05-22

Low-Noise Amplifier

#5
20250141419
2025-05-01

AMPLIFIER

#6
20230361723
2023-11-09

LOW NOISE AMPLIFIER CIRCUIT

#7
20220094317
2022-03-24

Amplifiers for RF ADCS

#8
20220029587
2022-01-27

LOW NOISE AMPLIFIER CIRCUIT

#9
20210013837
2021-01-14

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#10
20200389130
2020-12-10

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#11
20200382072
2020-12-03

Amplifier circuit with high-order damping circuit and the high-order damping circuit

#12
20200373890
2020-11-26

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

#13
20190393844
2019-12-26

Low noise amplifier circuit

#14
20190386619
2019-12-19

SYSTEMS, CIRCUITS AND METHODS FOR CORRECTING DYNAMIC ERROR VECTOR MAGNITUDE EFFECTS

#15
20190190476
2019-06-20

Power amplifier circuit

#16
20190140598
2019-05-09

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#17
20190074802
2019-03-07

Low noise amplifier

#18
20180234061
2018-08-16

Multi-mode power amplifier

#19
20180198422
2018-07-12

Low noise amplifier circuit

#20
20180175801
2018-06-21

Inter-stage network for radio frequency amplifier

#21
20170338776
2017-11-23

Systems, circuits and methods for correcting dynamic error vector magnitude effects

#22
20170070197
2017-03-09

Low noise amplifier circuit

#23
20160182000
2016-06-23

Gain control in complementary common gate and common source amplifiers

#24
20160142027
2016-05-19

Amplifier and related method

#25
20160126911
2016-05-05

Signal amplifying system, AC signal generating circuit, amplifying gain acquiring method, and AC signal generating method

#26
20160126896
2016-05-05

Transformer feedback amplifier

#27
20160028353
2016-01-28

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

#28
20150303883
2015-10-22

Systems, circuits and methods related to dynamic error vector magnitude corrections

#29
20150236659
2015-08-20

Multimode power amplifier and method of switching among multiple modes thereof, and mobile terminal

#30
20150233961
2015-08-20

Analogue amplification device intended in particular for a laser anemometer

#31
20150214905
2015-07-30

Amplifier

#32
20140139290
2014-05-22

System and method for pre-charging a current mirror

#33
20140070888
2014-03-13

Buffering apparatus and method

#34
20120319782
2012-12-20

Class E power amplifier

#35
20120194276
2012-08-02

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

#36
20120056673
2012-03-08

Buffering apparatus and method

#37
20120032711
2012-02-09

System and method for pre-charging a current mirror

#38
20110241782
2011-10-06

Power amplifier

#39
20100171554
2010-07-08

Offset cancellation for DC isolated nodes

#40
20100109785
2010-05-06

Amplifier circuit having first amplifying section and second amplifying section

#41
20100045384
2010-02-25

System and method for pre-charging a current mirror

#42
20090295476
2009-12-03

FULLY DIFFERENTIAL DC OFFSET DEVICE CIRCUIT

#43
20090224831
2009-09-10

Cancellation of common mode oscillation in RF circuits

#44
20090189697
2009-07-30

Auto-tuning amplifier

#45
20090184769
2009-07-23

Negative-feedback type ultra-wideband signal amplification circuit

#46
20090115463
2009-05-07

Buffer circuit with reduced power consumption

#47
20080214139
2008-09-04

Multistage Resonant Amplifier System and Method

#48
20080197834
2008-08-21

Signal detecting circuit

#49
20080100382
2008-05-01

System and method for pre-charging a current mirror

#50
20070279130
2007-12-06

High speed amplifier with controllable amplification and output impedance and comparator using the same

#51
20070164826
2007-07-19

Gain controllable low noise amplifier and wireless communication receiver having the same

#52
20070164198
2007-07-19

Optical packet communication device with an applied negative voltage for canceling an offset voltage

#53
20060217099
2006-09-28

Activation signal output circuit having multiple amplifier circuits

#54
20060214731
2006-09-28

Differential two-stage miller compensated amplifier system with capacitive level shifting

#55
20050237116
2005-10-27

FET band amplifier

#56
20050237115
2005-10-27

FET band amplifier

#57
20050206412
2005-09-22

High frequency differential power amplifier

#58
20050088232
2005-04-28

Techniques to lower drive impedance and provide reduced DC offset

#59
14520060
2018-04-10

Transconductance with capacitances feedback compensation amplifier