ClassID:

219572

H03F2200/243 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A series resonance being added in series in the input circuit, e.g. base, gate, of an amplifier stage

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

Cascode Amplifier Bias Circuits

#2
20240364269
2024-10-31

Source Switched Split LNA

#3
20240348211
2024-10-17

Cascode amplifier bias circuits

#4
20230387864
2023-11-30

Cascode amplifier bias circuits

#5
20220368287
2022-11-17

Cascode amplifier bias circuits

#6
20210336584
2021-10-28

Source switched split LNA

#7
20210013841
2021-01-14

Cascode amplifier bias circuits

#8
20200144967
2020-05-07

Source switched split LNA

#9
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

#10
20190158031
2019-05-23

Cascode amplifier bias circuits

#11
20190036488
2019-01-31

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

#12
20180302039
2018-10-18

Source switched split LNA

#13
20180287561
2018-10-04

Power amplifier

#14
20180205351
2018-07-19

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

#15
20180205350
2018-07-19

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

#16
20180175807
2018-06-21

LNA with programmable linearity

#17
20180083578
2018-03-22

Cascode amplifier bias circuits

#18
20180054222
2018-02-22

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

#19
20180026591
2018-01-25

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

#20
20170229921
2017-08-10

Magnetic resonance wireless power transmission device capable of adjusting resonance frequency

#21
20170187337
2017-06-29

Advanced amplifier system for ultra-wide band RF communication

#22
20170063405
2017-03-02

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

#23
20140218114
2014-08-07

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

#24
20100259331
2010-10-14

High-linearity low noise amplifier

#25
20100019848
2010-01-28

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

#26
20090121791
2009-05-14

Wideband low noise amplifiers

#27
20080029753
2008-02-07

Configurable circuits using phase change switches

#28
20080012659
2008-01-17

Resonator matching network

#29
20070298712
2007-12-27

Transmit/receive circuit with PIN diodes

#30
20070205829
2007-09-06

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

#31
20060232362
2006-10-19

Resonator matching network

#32
20060081878
2006-04-20

Transistor circuit