ClassID:

219491

H03F3/602 - page 2 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators Combinations of several amplifiers

Recent Application in this class:
#301
20130229227
2013-09-05

Amplification apparatus

#302
20130217341
2013-08-22

High efficiency path based power amplifier circuitry

#303
20130207729
2013-08-15

Power amplifier

#304
20130207719
2013-08-15

Transformer power amplifier

#305
20130194023
2013-08-01

Adjustable power splitter and corresponding methods and apparatus

#306
20130181773
2013-07-18

Multi-way Doherty amplifier

#307
20130177106
2013-07-11

Multiple functional equivalence digital communications interface

#308
20130170512
2013-07-04

Multiple phase-locked loops for high-power RF-power combiners

#309
20130147445
2013-06-13

Voltage multiplier charge pump buck

#310
20130135052
2013-05-30

Interference reduction between RF communications bands

#311
20130135044
2013-05-30

High-frequency power amplifier with doherty extension

#312
20130130619
2013-05-23

Dual N-port MPA

#313
20130127542
2013-05-23

ACTIVE ANTENNA ARRANGEMENT WITH DOHERTY AMPLIFIER

#314
20130122837
2013-05-16

Broadband high efficiency amplifier system incorporating dynamic modulation of load impedance

#315
20130122834
2013-05-16

Broadband amplifier system using a 3dB quadrature combiner to dynamically modulate load impedance

#316
20130120069
2013-05-16

High frequency amplifier

#317
20130109434
2013-05-02

Multi-mode multi-band self-realigning power amplifier

#318
20130102920
2013-04-25

Signal distribution for patient-electrode measurements

#319
20130099860
2013-04-25

High frequency power amplifier

#320
20130093534
2013-04-18

Doherty power amplifier network

#321
20130093511
2013-04-18

Apparatus and method for improving efficiency in power amplifier

#322
20130093510
2013-04-18

High-frequency signal amplifier

#323
20130093509
2013-04-18

Hybrid coupler

#324
20130070836
2013-03-21

System and method for generating a radio frequency pulse-width modulated signal

#325
20130063222
2013-03-14

Radio-frequency circuit having a transcoupling element

#326
20130063208
2013-03-14

Radio-frequency transmitter, such as for broadcasting and cellular base stations

#327
20130049858
2013-02-28

Envelope tracking system for MIMO

#328
20130043944
2013-02-21

Cascaded converged power amplifier

#329
20130027272
2013-01-31

Doherty amplifier arrangement

#330
20130021104
2013-01-24

AMPLIFIER ARRANGEMENT

#331
20130009709
2013-01-10

Power amplifier

#332
20130002349
2013-01-03

Bypass power amplifier for improving efficiency at low power

#333
20130001662
2013-01-03

Semiconductor device having first and second resistance for suppressing loop oscillation

#334
20120326780
2012-12-27

Coupler and amplifier arrangement

#335
20120319769
2012-12-20

Combiner-less multiple input single output (MISO) amplification with blended control

#336
20120302186
2012-11-29

Independent PA biasing of a driver stage and a final stage

#337
20120299661
2012-11-29

PA bias power supply undershoot compensation

#338
20120299660
2012-11-29

Selecting PA bias levels of RF PA circuitry during a multislot burst

#339
20120299647
2012-11-29

PA envelope power supply undershoot compensation

#340
20120299646
2012-11-29

Selecting a converter operating mode of a PA envelope power supply

#341
20120299645
2012-11-29

Temperature correcting an envelope power supply signal for RF PA circuitry

#342
20120294387
2012-11-22

Extended bandwidth digital Doherty transmitter

#343
20120286876
2012-11-15

Multi-band power amplifier

#344
20120286866
2012-11-15

Amplifier performance stabilization through preparatory phase

#345
20120282869
2012-11-08

RF PA linearity requirements based converter operating mode selection

#346
20120280752
2012-11-08

Embedded RF PA temperature compensating bias transistor

#347
20120280747
2012-11-08

Feedback based buck timing of a direct current (DC)-DC converter

#348
20120280746
2012-11-08

DC-DC converter semiconductor die structure

#349
20120274414
2012-11-01

Isolated zero degree reactive radio frequency high power combiner

#350
20120262234
2012-10-18

Power amplifier with advanced linearity

#351
20120258677
2012-10-11

Power amplifier architectures

#352
20120256684
2012-10-11

Power amplification based on frequency control signal

#353
20120249262
2012-10-04

Power combiner, power amplifying module having the same, and signal transceiving module

#354
20120235877
2012-09-20

BAND REJECT FILTERS

#355
20120235736
2012-09-20

Charge pump based power amplifier envelope power supply and bias power supply

#356
20120235735
2012-09-20

Power amplifier circuit and front end circuit

#357
20120229230
2012-09-13

Impedance transforming coupler

#358
20120229219
2012-09-13

Multi-level power amplification system

#359
20120229210
2012-09-13

Overlay class F choke

#360
20120223774
2012-09-06

Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry

#361
20120223773
2012-09-06

Linear mode and non-linear mode quadrature PA circuitry

#362
20120193771
2012-08-02

Transmission line, impedance transformer, integrated circuit mounted device, and communication device module

#363
20120190317
2012-07-26

Radio frequency combiner

#364
20120190316
2012-07-26

Radio frequency splitter

#365
20120184233
2012-07-19

Combined RF detector and RF attenuator with concurrent outputs

#366
20120176195
2012-07-12

Asymmetric multilevel outphasing architecture for RF amplifiers

#367
20120176194
2012-07-12

Apparatus and method for improving performance in Doherty amplifier

#368
20120170690
2012-07-05

Auto configurable 2/3 wire serial interface

#369
20120163428
2012-06-28

Multiport amplifier and multiport amplification method using the same

#370
20120161877
2012-06-28

PA bias power supply efficiency optimization

#371
20120154043
2012-06-21

High-frequency power amplifier device

#372
20120154034
2012-06-21

Doherty amplifier system and transmitter using the same

#373
20120139628
2012-06-07

Method and arrangement in a mobile communications system

#374
20120129469
2012-05-24

Multiple antenna transceiver

#375
20120126890
2012-05-24

Power amplifier

#376
20120126886
2012-05-24

Method and arrangement in a mobile communication system

#377
20120112963
2012-05-10

Butler matrix and multi-port amplifier having the same

#378
20120098595
2012-04-26

Quadrature power amplifier architecture

#379
20120075017
2012-03-29

Attenuator

#380
20120060135
2012-03-08

Integrated circuit transformer devices for on-chip millimeter-wave applications

#381
20120056669
2012-03-08

Power amplifier device with reduced bulk

#382
20120056658
2012-03-08

LCL high power combiner

#383
20120032737
2012-02-09

On-chip millimeter wave lange coupler

#384
20120001692
2012-01-05

Adaptive power amplifier

#385
20110304391
2011-12-15

Decade bandwidth planar MMIC four port transformer

#386
20110279178
2011-11-17

Multi-band high-efficiency Doherty amplifier

#387
20110267141
2011-11-03

Multiport amplifier and wireless device using the same

#388
20110260771
2011-10-27

Power combiner/distributor and transmitter using the power combiner/distributor

#389
20110254629
2011-10-20

Multi stage amplifier

#390
20110254628
2011-10-20

Multi-stage amplifier

#391
20110248795
2011-10-13

Band reject filters

#392
20110215866
2011-09-08

Asymmetric multilevel outphasing architecture for RF amplifiers

#393
20110204993
2011-08-25

Transmission line, impedance transformer, integrated circuit mounted device, and communication device module

#394
20110194324
2011-08-11

Generation of high-frequency, high-power electrical signals from low-frequency, low-power lattice network structures as sources

#395
20110193659
2011-08-11

Scalable millimeter wave power source

#396
20110193624
2011-08-11

TUNABLE IMPEDANCE INVERTER FOR DOHERTY AMPLIFIER CIRCUIT

#397
20110187453
2011-08-04

Linearizer incorporating a phase shifter

#398
20110187437
2011-08-04

Radio-frequency (RF) amplifier circuits and related techniques

#399
20110175685
2011-07-21

Multi-primary distributed active transformer amplifier power supply and control

#400
20110175677
2011-07-21

Distributed Doherty power amplifier

#401
20110169590
2011-07-14

Combiner for Doherty amplifier

#402
20110143821
2011-06-16

POWER AMPLIFICATION MODULE FOR MOBILE COMMUNICATION TERMINAL

#403
20110140784
2011-06-16

Amplifier circuit

#404
20110140781
2011-06-16

IMPEDANCE MATCHING CIRCUIT ELIMINATING INTERFERENCE BETWEEN SIGNAL LINES AND POWER AMPLIFIER HAVING THE SAME

#405
20110140775
2011-06-16

Combined cell doherty power amplification apparatus and method

#406
20110130091
2011-06-02

DEVICE FOR POWER AMPLIFICATION OF A PAYLOAD OF A MULTIBEAM SATELLITE FOR BROADCASTING DATA

#407
20110128079
2011-06-02

MULTI-BAND POWER AMPLIFIER WITH HIGH-FREQUENCY TRANSFORMER

#408
20110123040
2011-05-26

Dynamic switchable mode dual bridge power amplifier

#409
20110102224
2011-05-05

Integrated circuit and corresponding method of processing a multitype radio frequency digital signal

#410
20110063028
2011-03-17

Power amplifier

#411
20110006858
2011-01-13

Multi-Source Spatial Power Amplifier

#412
20110006841
2011-01-13

Switchable balanced amplifier

#413
20110002031
2011-01-06

Radial power amplification device with phase dispersion compensation of the amplification paths

#414
20100308911
2010-12-09

Band reject filters

#415
20100301933
2010-12-02

Output networks in combination with LINC technique

#416
20100289569
2010-11-18

Digital hybrid amplifier calibration and compensation method

#417
20100285833
2010-11-11

RF front-end circuit

#418
20100283548
2010-11-11

Multi-primary distributed active transformer amplifier power supply and control

#419
20100271131
2010-10-28

Power amplifier with two transistors and traces forming two transformers

#420
20100271121
2010-10-28

Multiport amplifiers in communications satellites

#421
20100270999
2010-10-28

Transformer power splitter having primary winding conductors magnetically coupled to secondary winding conductors and configured in topology including series connection and parallel connection

#422
20100246659
2010-09-30

Global instruction broadcasting for pulse-position modulated data transmission

#423
20100244955
2010-09-30

Reconfigurable distributed active transformers

#424
20100244949
2010-09-30

Composite amplifier, a radio terminal and a method for improving the efficiency of the composite amplifier

#425
20100237975
2010-09-23

Transformer power combiner having a plurality of current combiners coupled in series and a voltage combiner coupled to a series connection of the current combiners

#426
20100231322
2010-09-16

On-chip millimeter wave lange coupler

#427
20100227599
2010-09-09

Amplifier system for cell sites and other suitable applications

#428
20100225397
2010-09-09

Amplifier and radio

#429
20100214017
2010-08-26

Tuning multiport amplifiers

#430
20100210225
2010-08-19

Modular solid-state millimeter wave (MMW) RF power source

#431
20100197251
2010-08-05

Power amplifier comprising a slotted power combiner

#432
20100177379
2010-07-15

Splitter/combiner and waveguide amplifier incorporating splitter/combiner

#433
20100176880
2010-07-15

Power amplifier architectures

#434
20100156528
2010-06-24

Multiport amplifiers in communications satellites

#435
20100148860
2010-06-17

Multiport amplifier adjustment

#436
20100141338
2010-06-10

Broadband power amplifier

#437
20100117727
2010-05-13

Asymmetric multilevel outphasing architecture for RF amplifiers

#438
20100090767
2010-04-15

RF amplification device

#439
20100075623
2010-03-25

Systems and methods of RF power transmission, modulation, and amplification, including embodiments for controlling a transimpedance node

#440
20100054325
2010-03-04

Multi-level pulse width modulation power amplifier method and apparatus

#441
20100053470
2010-03-04

ACTIVE DISTRIBUTED SIGNAL SPLITTING APPARATUS

#442
20100026388
2010-02-04

Balanced amplifying device having a bypass branch

#443
20100007423
2010-01-14

Integrated power amplifier

#444
20100007416
2010-01-14

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

#445
20100007411
2010-01-14

Premium power amplifier

#446
20090295513
2009-12-03

Programmable microwave circuit

#447
20090295474
2009-12-03

Device with shared power amplifiers, for use in a wireless telecommunications system

#448
20090295473
2009-12-03

Power amplifier architectures

#449
20090286495
2009-11-19

Parallel amplifier architecture with feedback control based on reflected signal strength

#450
20090273398
2009-11-05

Doherty power amplifier

#451
20090261901
2009-10-22

Decade bandwidth planar MMIC four port transformer

#452
20090256633
2009-10-15

Bypass device for microwave amplifier unit

#453
20090243718
2009-10-01

High-speed modulator driver circuit with enhanced drive capability

#454
20090243717
2009-10-01

Compact high-speed modulator driver method and apparatus

#455
20090231076
2009-09-17

Transformer power combiner having secondary winding conductors magnetically coupled to primary winding conductors and configured in topology including series connection and parallel connection

#456
20090231055
2009-09-17

Multi-level power amplification system

#457
20090231032
2009-09-17

LINC amplifying device

#458
20090212871
2009-08-27

Multi-planar solid state amplifier

#459
20090201089
2009-08-13

High frequency power amplifier

#460
20090179704
2009-07-16

Load insensitive balanced power amplifier and related operating method

#461
20090179703
2009-07-16

High efficiency power amplifier

#462
20090167434
2009-07-02

Device, system, and method of semi-Doherty outphasing amplification

#463
20090141183
2009-06-04

Active Splitter Device and Method Using Diplexed Front End

#464
20090117863
2009-05-07

High efficiency RF transmitter system using non-linear amplifiers

#465
20090108954
2009-04-30

Quasi active MIMIC circulator

#466
20090108930
2009-04-30

High power commutating multiple output amplifier system

#467
20090102592
2009-04-23

Multi-primary distributed active transformer amplifier power supply and control

#468
20090102574
2009-04-23

Matrix balun

#469
20090102554
2009-04-23

Output networks in combination with LINC technique

#470
20090098846
2009-04-16

Method and apparatus for sensing the envelope of high level multi frequency band RF signals

#471
20090096530
2009-04-16

Solid state RF power amplifier

#472
20090096525
2009-04-16

Power amplifier

#473
20090088095
2009-04-02

Amplifier, radio transmitting apparatus, and radio receiving apparatus

#474
20090085666
2009-04-02

RF amplifying device

#475
20090066420
2009-03-12

Solid state power amplifier with multi-planar MMIC modules

#476
20090051438
2009-02-26

Amplifying system

#477
20090045878
2009-02-19

Amplifier

#478
20090022240
2009-01-22

Low power distributed transmitter

#479
20090021301
2009-01-22

Efficient composite amplifier

#480
20090015323
2009-01-15

Balanced amplifier with protection circuit

#481
20090009241
2009-01-08

Power amplifier using power combiner

#482
20080316101
2008-12-25

High power phased array antenna system and method with low power switching

#483
20080315993
2008-12-25

Dual mode RF power amplifier

#484
20080315954
2008-12-25

Calibration circuitry and delay cells in rectilinear RF power amplifier

#485
20080315946
2008-12-25

Combiner-less multiple input single output (MISO) amplification with blended control

#486
20080315944
2008-12-25

Spatially-fed high power amplifier with shaped reflectors

#487
20080303608
2008-12-11

Flexible Microwave Transmission Line

#488
20080303597
2008-12-11

Semiconductor circuit

#489
20080290948
2008-11-27

Impedance transformer for amplifier and amplifier including the same

#490
20080285681
2008-11-20

Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment

#491
20080252546
2008-10-16

Ultra wideband impulse radar

#492
20080231359
2008-09-25

POWER DIVIDER/COMBINER AND POWER DIVIDING/COMBINING METHOD USING THE SAME

#493
20080218263
2008-09-11

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

#494
20080212502
2008-09-04

Systems and methods of band amplification with a shared amplifier

#495
20080212500
2008-09-04

Systems and methods of efficient band amplification

#496
20080204139
2008-08-28

Reconfigurable distributed active transformers

#497
20080204134
2008-08-28

Power combiner

#498
20080197922
2008-08-21

Amplifier device for an antenna operable in at least one mode

#499
20080195988
2008-08-14

Integrated circuit transformer devices for on-chip millimeter-wave applications

#500
20080180178
2008-07-31

Power amplifier with an output matching network

#501
20080180168
2008-07-31

Amplifier, transmitter arrangement having an amplifier and method for amplifying a signal

#502
20080157871
2008-07-03

Predistortion linearization device with adjustable amplitude and shape

#503
20080136554
2008-06-12

System, microwave switch and method for hot standby of radio frequency power amplifier

#504
20080129411
2008-06-05

Band reject filters

#505
20080129410
2008-06-05

Matching circuit and multi-band amplifier

#506
20080116976
2008-05-22

Low noise amplifier with multiple inputs and multiple outputs

#507
20080079496
2008-04-03

Amplifier containing programmable impedance for harmonic termination

#508
20080074735
2008-03-27

Power amplifier

#509
20080070525
2008-03-20

Method and apparatus for improving sector to sector isolation in a Fourier transform matrix system

#510
20080048774
2008-02-28

High efficiency load insensitive power amplifier

#511
20080036540
2008-02-14

Amplifier arrangement and method for amplifying a signal

#512
20080013443
2008-01-17

Transformer coupling of antennas

#513
20080012645
2008-01-17

Thermally distributed integrated power amplifier module

#514
20080007331
2008-01-10

Multiband Doherty amplifier

#515
20080007330
2008-01-10

Power amplifier system

#516
20070285190
2007-12-13

High-frequency circuit device, high-frequency module, and communication apparatus

#517
20070279181
2007-12-06

Microwave load

#518
20070279146
2007-12-06

Flexible microwave transmission line

#519
20070279133
2007-12-06

Solid state microwave power amplifier

#520
20070279128
2007-12-06

Electrically conductive attachment device

#521
20070270110
2007-11-22

Analog front end for a wireless device

#522
20070252652
2007-11-01

Dual op amp IC with single low noise op amp configuration

#523
20070229165
2007-10-04

Integrated parallel power amplifier

#524
20070210863
2007-09-13

Multi-channel amplifier with reduced overall power emission, and circuit management including same

#525
20070205827
2007-09-06

Doherty amplifier

#526
20070188237
2007-08-16

Controlling the ratio of amplification factors between linear amplifiers

#527
20070184790
2007-08-09

Control of a power amplifier for reducing power consumption in a transceiver

#528
20070182481
2007-08-09

Distributed amplifier with built-in filtering functions

#529
20070153936
2007-07-05

Digitally convertible radio

#530
20070146077
2007-06-28

Radio frequency power amplifier

#531
20070139104
2007-06-21

Standby and concurring system of a power amplifier and method for power amplifying

#532
20070132514
2007-06-14

Power device having connection structure compensating for reactance component of transmission line

#533
20070118776
2007-05-24

Power amplifier

#534
20070103237
2007-05-10

Amplifier

#535
20070080747
2007-04-12

Composite power amplifier

#536
20070076774
2007-04-05

Spatially-fed high-power amplifier with shaped reflectors

#537
20070075894
2007-04-05

RF Pulse Shaping By Incremental Amplifier Turn On and Off

#538
20070069818
2007-03-29

Multilevel power amplifier architecture using multi-tap transformer

#539
20070069717
2007-03-29

Self-shielded electronic components

#540
20070030071
2007-02-08

Reconfigurable distributed active transformers

#541
20070024376
2007-02-01

Radio frequency power amplifier module

#542
20070024362
2007-02-01

High reliability RF generator architecture

#543
20070024358
2007-02-01

Semiconductor power device and RF signal amplifier

#544
20070018720
2007-01-25

High efficiency amplifier circuits having bypass paths

#545
20060284685
2006-12-21

Power amplifier of a transmitter

#546
20060246855
2006-11-02

Wireless transmitter and amplifier

#547
20060238245
2006-10-26

RF amplifier employing active load linearization

#548
20060226510
2006-10-12

Integrated circuit transformer devices for on-chip millimeter-wave applications

#549
20060208672
2006-09-21

High-power microwave system employing a phase-locked array of inexpensive commercial magnetrons

#550
20060205375
2006-09-14

Measurement circuit and method for measuring the level of an RF signal, and a transmitter including a measurement circuit

#551
20060202777
2006-09-14

Method and apparatus for increasing performance in a waveguide-based spatial power combiner

#552
20060192615
2006-08-31

Amplifier with high output power dynamic

#553
20060189292
2006-08-24

Electronic circuit device

#554
20060181344
2006-08-17

Multiple signal intermodulation reduction system

#555
20060152286
2006-07-13

High-frequency amplifier

#556
20060145757
2006-07-06

Power amplifying apparatus using asymmetric power drive

#557
20060139092
2006-06-29

Load mismatch adaptation in coupler-based amplifiers

#558
20060139091
2006-06-29

Power amplifier employing thin film ferroelectric phase shift element

#559
20060132255
2006-06-22

Three-port nonreciprocal circuit device, composite electronic component, and communication apparatus

#560
20060132230
2006-06-22

Method and apparatus for compensating amplifier output for temperature and process variations

#561
20060125558
2006-06-15

Radio frequency power amplifier for lossless power combining

#562
20060119433
2006-06-08

High frequency amplifier

#563
20060116090
2006-06-01

Amplifier gain and phase stabilizer

#564
20060114060
2006-06-01

Composite amplifier structure

#565
20060091958
2006-05-04

Multilevel power amplifier architecture using multi-tap transformer

#566
20060087371
2006-04-27

High efficiency amplifier

#567
20060044060
2006-03-02

Circuit for parallel operation of Doherty amplifiers

#568
20060043516
2006-03-02

Transistor integrated circuit apparatus

#569
20060040624
2006-02-23

Peak power limitation in an amplifier pooling scenario

#570
20060033568
2006-02-16

Predistortion linearizing

#571
20060028278
2006-02-09

Radio frequency power amplifier module

#572
20060022755
2006-02-02

Negative conductance power amplifier

#573
20060017538
2006-01-26

Distributed active transformer power control techiques

#574
20060017509
2006-01-26

Auxiliary transistor gate bias control system and method

#575
20060012425
2006-01-19

Radio frequency power amplifier

#576
20060006950
2006-01-12

Power amplifier utilizing high breakdown voltage circuit topology

#577
20060006938
2006-01-12

Method and apparatus for an improved power amplifier

#578
20060006937
2006-01-12

Method and apparatus for an improved power amplifier

#579
20050280466
2005-12-22

Method and apparatus for an enhanced efficiency power amplifier

#580
20050270095
2005-12-08

Paralleling digital-input amplifiers

#581
20050258903
2005-11-24

Radio frequency power amplifier

#582
20050248401
2005-11-10

Composite power amplifier

#583
20050227617
2005-10-13

Satellite amplifier system

#584
20050225385
2005-10-13

Auxiliary amplifier network

#585
20050218990
2005-10-06

Power amplifier

#586
20050218910
2005-10-06

Current-to-voltage converting apparatus and impedance measuring apparatus

#587
20050200420
2005-09-15

Supply circuit for power amplifier drivers

#588
20050189995
2005-09-01

Multi-primary distributed active transformer amplifier power supply and control

#589
20050189991
2005-09-01

Method and apparatus for phase balancing of amplifier modules

#590
20050184813
2005-08-25

Multi-primary distributed active transformer oscillator power supply and control

#591
20050181751
2005-08-18

Power amplifier arrangement having two or more antenna coupling respective amplifiers to a supply potential

#592
20050140447
2005-06-30

Reconfigurable distributed active transformers

#593
20050124303
2005-06-09

Compensating for load pull in electromagentic signal propagation using adaptive impedance matching

#594
20050110594
2005-05-26

Non-switching adaptable 4-way power splitter/combiner

#595
20050110573
2005-05-26

Radio frequency power amplifier

#596
20050110564
2005-05-26

Gain and phase balanced amplifier redundancy system

#597
20050093626
2005-05-05

Radio frequency power amplifier module

#598
20050088253
2005-04-28

Switchable combiner and integrated combining apparatus for using it

#599
20050057310
2005-03-17

Monolithic array amplifier with periodic bias-line bypassing structure and method

#600
20050052232
2005-03-10

Balanced power amplifier and high-frequency communication apparatus