ClassID:

219592

H03F2200/301 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the loading circuit of an amplifying stage comprising a coil

Recent Application in this class:
#1
20250260370
2025-08-14

Cascode Amplifier Bias Circuits

#2
20250096737
2025-03-20

LOW-NOISE AMPLIFIER (LNA) INPUT IMPEDANCE IMPROVEMENT USING COUPLING BETWEEN OUTPUT INDUCTOR AND DEGENERATION INDUCTOR

#3
20240364269
2024-10-31

Source Switched Split LNA

#4
20240348211
2024-10-17

Cascode amplifier bias circuits

#5
20240186954
2024-06-06

Generation And Synchronization Of Pulse-Width Modulated (PWM) Waveforms For Radio-Frequency (RF) Applications

#6
20230387864
2023-11-30

Cascode amplifier bias circuits

#7
20220368287
2022-11-17

Cascode amplifier bias circuits

#8
20220321153
2022-10-06

Transformer-based amplifier, operating method thereof, and devices including the same

#9
20220216832
2022-07-07

Generation and synchronization of pulse-width modulated (PWM) waveforms for radio-frequency (RF) applications

#10
20220006431
2022-01-06

High gain resonant amplifier for resistive output impedance

#11
20210336584
2021-10-28

Source switched split LNA

#12
20210320626
2021-10-14

Quadrature combined Doherty amplifiers

#13
20210021243
2021-01-21

Multiphase buck-boost amplifier

#14
20210013841
2021-01-14

Cascode amplifier bias circuits

#15
20200382070
2020-12-03

Quadrature combined doherty amplifiers

#16
20200350867
2020-11-05

Power amplifier

#17
20200350863
2020-11-05

Generation and synchronization of pulse-width modulated (PWM) waveforms for radio-frequency (RF) applications

#18
20200144967
2020-05-07

Source switched split LNA

#19
20200136572
2020-04-30

Digital power amplifier

#20
20200059201
2020-02-20

Wideband biasing of high power amplifiers

#21
20200052664
2020-02-13

MATRIX POWER AMPLIFIER

#22
20200052654
2020-02-13

Apparatus and method for assisting envelope tracking with transient response in supply voltage for power amplifier

#23
20200021252
2020-01-16

Current amplifier

#24
20200020474
2020-01-16

RF damping structure in inductive device

#25
20190372533
2019-12-05

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

#26
20190341893
2019-11-07

RF power amplifier with frequency selective impedance matching network

#27
20190319593
2019-10-17

Multiphase buck-boost amplifier

#28
20190288651
2019-09-19

Matrix power amplifier

#29
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

#30
20190242929
2019-08-08

Current detection circuit

#31
20190229077
2019-07-25

Packaged RF power amplifier having a high power density

#32
20190212403
2019-07-11

Gradient amplifier driver stage circuit, gradient amplifier system and control method thereof

#33
20190207561
2019-07-04

Amplifying device comprising a compensation circuit

#34
20190190464
2019-06-20

RF power transistors with impedance matching circuits, and methods of manufacture thereof

#35
20190165739
2019-05-30

Quadrature combined doherty amplifiers

#36
20190158031
2019-05-23

Cascode amplifier bias circuits

#37
20190137580
2019-05-09

Circuit arrangement for an MRT system, MRT system and method for operating an MRT system

#38
20190123696
2019-04-25

Low noise amplifier and radio frequency amplification method using the same

#39
20190115876
2019-04-18

Power amplifier with nulling monitor circuit

#40
20190049532
2019-02-14

RF POWER AMPLIFIER FOR MAGNETIC RESONANCE IMAGING

#41
20190020314
2019-01-17

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

#42
20190020313
2019-01-17

Phase-Switched Impedance Modulation Amplifier

#43
20190007004
2019-01-03

High gain resonant amplifier for resistive output impedance

#44
20190007001
2019-01-03

Method for improving linearity of radio frequency power amplifier, compensation circuit and communications terminal

#45
20190006995
2019-01-03

Generation and synchronization of pulse-width modulated (PWM) waveforms for radio-frequency (RF) applications

#46
20190006075
2019-01-03

Inductor and power amplifier module

#47
20180358931
2018-12-13

Power amplifier

#48
20180329443
2018-11-15

Current mirror device and related amplifier circuit

#49
20180302039
2018-10-18

Source switched split LNA

#50
20180205351
2018-07-19

Amplifier system for use as high sensitivity selective receiver without frequency conversion

#51
20180205350
2018-07-19

Amplifier system for use as high sensitivity selective receiver without frequency conversion

#52
20180198429
2018-07-12

Amplification circuit

#53
20180175807
2018-06-21

LNA with programmable linearity

#54
20180175801
2018-06-21

Inter-stage network for radio frequency amplifier

#55
20180097484
2018-04-05

Matrix power amplifier

#56
20180097481
2018-04-05

Fully integrated low-noise amplifier

#57
20180083578
2018-03-22

Cascode amplifier bias circuits

#58
20180026591
2018-01-25

Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion

#59
20170310290
2017-10-26

Amplifiers

#60
20170302232
2017-10-19

Class D amplifier

#61
20170187337
2017-06-29

Advanced amplifier system for ultra-wide band RF communication

#62
20170141748
2017-05-18

Amplifier system, controller of main amplifier and associated control method

#63
20170117856
2017-04-27

RF power transistors with video bandwidth circuits, and methods of manufacture thereof

#64
20170040965
2017-02-09

Symmetric linear equalization circuit with increased gain

#65
20160285418
2016-09-29

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

#66
20160254790
2016-09-01

Distributed amplifier

#67
20160241198
2016-08-18

Input driver for power amplifier and transmitter

#68
20160181987
2016-06-23

Phase-switched impedance modulation amplifier

#69
20160181986
2016-06-23

Tunable matching network with phase-switched elements

#70
20160178715
2016-06-23

Output combination of transistors in an MRT radio-frequency power amplifier

#71
20160126896
2016-05-05

Transformer feedback amplifier

#72
20160099730
2016-04-07

Amplifier

#73
20160072449
2016-03-10

Symmetric linear equalization circuit with increased gain

#74
20160020735
2016-01-21

Power amplifier

#75
20150372649
2015-12-24

Signal amplification system

#76
20150371770
2015-12-24

Broadband power amplifier having high efficiency

#77
20150311865
2015-10-29

Flyback amplifier with direct feedback

#78
20150295542
2015-10-15

Ultra wideband doherty amplifier

#79
20120206201
2012-08-16

Semiconductor device

#80
20110204979
2011-08-25

Constructive feedback traveling wave device and method

#81
20110175680
2011-07-21

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

#82
20080129370
2008-06-05

Control circuit and method for a switching amplifier

#83
20080079488
2008-04-03

Amplifier device with adjustable supply voltage

#84
20080055005
2008-03-06

Feedback-type variable gain amplifier and method of controlling the same

#85
20080024186
2008-01-31

Amplifier circuit, semiconductor device and electronic apparatus

#86
20070290726
2007-12-20

Driving device and driving method

#87
20070115056
2007-05-24

Operational amplifier and scanning electron microscope using the same

#88
16656310
2020-10-27

Amplifier with gain boosting

#89
16106339
2019-07-09

V-band digital control bandpass amplifier

#90
14919513
2017-02-14

RF power transistors with impedance matching circuits, and methods of manufacture thereof