CA2011193A1 - Broadband nonlinear drive control network for linear amplifiers arranged in several amplifier channels - Google Patents

Broadband nonlinear drive control network for linear amplifiers arranged in several amplifier channels

Info

Publication number
CA2011193A1
CA2011193A1 CA002011193A CA2011193A CA2011193A1 CA 2011193 A1 CA2011193 A1 CA 2011193A1 CA 002011193 A CA002011193 A CA 002011193A CA 2011193 A CA2011193 A CA 2011193A CA 2011193 A1 CA2011193 A1 CA 2011193A1
Authority
CA
Canada
Prior art keywords
limiter
signal source
amplitude
branch
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002011193A
Other languages
English (en)
French (fr)
Inventor
Karl Meinzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2011193A1 publication Critical patent/CA2011193A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
CA002011193A 1989-03-01 1990-02-28 Broadband nonlinear drive control network for linear amplifiers arranged in several amplifier channels Abandoned CA2011193A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3906448A DE3906448C1 (enExample) 1989-03-01 1989-03-01
DEP3906448.4-31 1989-03-01

Publications (1)

Publication Number Publication Date
CA2011193A1 true CA2011193A1 (en) 1990-09-01

Family

ID=6375221

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002011193A Abandoned CA2011193A1 (en) 1989-03-01 1990-02-28 Broadband nonlinear drive control network for linear amplifiers arranged in several amplifier channels

Country Status (6)

Country Link
US (1) US5017888A (enExample)
JP (1) JPH02253710A (enExample)
CA (1) CA2011193A1 (enExample)
DE (1) DE3906448C1 (enExample)
FR (1) FR2644017B1 (enExample)
GB (1) GB2229057B (enExample)

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* Cited by examiner, † Cited by third party
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JPH0454006A (ja) * 1990-06-22 1992-02-21 Fujitsu Ltd 増幅装置
US6028485A (en) * 1998-08-03 2000-02-22 Motorola, Inc. Power amplification apparatus and method therefor
SE0002148L (sv) * 2000-06-06 2001-11-26 Ericsson Telefon Ab L M Sammansatt förstärkare
SE520760C2 (sv) * 2000-06-06 2003-08-19 Ericsson Telefon Ab L M Doherty-förstärkare av flerstegstyp
US6639463B1 (en) * 2000-08-24 2003-10-28 Lucent Technologies Inc. Adaptive power amplifier system and method
US6469581B1 (en) 2001-06-08 2002-10-22 Trw Inc. HEMT-HBT doherty microwave amplifier
US6864742B2 (en) * 2001-06-08 2005-03-08 Northrop Grumman Corporation Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers
US6816008B2 (en) * 2002-12-31 2004-11-09 Alion Science And Technology Corporation Quasi-linear multi-state digital modulation through non-linear amplifier arrays
SE0302586D0 (sv) * 2003-09-26 2003-09-26 Ericsson Telefon Ab L M Composite power amplifier
US7343138B2 (en) * 2003-12-08 2008-03-11 M/A-Com, Inc. Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7382186B2 (en) * 2005-01-24 2008-06-03 Triquint Semiconductor, Inc. Amplifiers with high efficiency in multiple power modes
US7385445B2 (en) * 2005-07-21 2008-06-10 Triquint Semiconductor, Inc. High efficiency amplifier circuits having bypass paths
US20070080750A1 (en) * 2005-08-31 2007-04-12 Triquint Semiconductor, Inc. High efficiency amplifiers having multiple amplification paths
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US7362170B2 (en) 2005-12-01 2008-04-22 Andrew Corporation High gain, high efficiency power amplifier
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
US7620129B2 (en) 2007-01-16 2009-11-17 Parkervision, Inc. RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals
WO2008144017A1 (en) 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
US8561777B2 (en) * 2007-10-23 2013-10-22 Mei, Inc. Coin sensor
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
KR101101515B1 (ko) * 2010-02-03 2012-01-05 삼성전기주식회사 전력 증폭기
US8416023B2 (en) * 2010-06-08 2013-04-09 Nxp B.V. System and method for compensating for changes in an output impedance of a power amplifier
EP2695294A1 (en) 2011-04-08 2014-02-12 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
KR20140034895A (ko) 2011-06-02 2014-03-20 파커비전, 인크. 안테나 제어
CN104205176B (zh) 2012-03-14 2018-04-17 梅伊有限公司 硬币传感器
EP4538829A3 (en) 2013-09-17 2025-06-25 Parkervision, Inc. Method, apparatus and system for rendering an information bearing function of time
CN111371416B (zh) * 2020-03-18 2024-04-30 锐石创芯(深圳)科技股份有限公司 一种可切换输出阻抗的偏置网络、控制方法及功率放大器系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL57174C (enExample) * 1938-12-02
US3248663A (en) * 1963-02-25 1966-04-26 Westinghouse Electric Corp High efficiency linear amplifier system
US4178557A (en) * 1978-12-15 1979-12-11 Bell Telephone Laboratories, Incorporated Linear amplification with nonlinear devices
US4494084A (en) * 1982-03-01 1985-01-15 The United States Of America As Represented By The Secretary Of The Navy Pin diode linear attenuator controlled by a companding DAC
US4780685A (en) * 1987-03-19 1988-10-25 General Electric Company Composite power amplifier with redundancy
DE3733374A1 (de) * 1987-10-02 1989-05-11 Messerschmitt Boelkow Blohm Verfahren und vorrichtung zur linearen verstaerkung von signalen in satellitentranspondern

Also Published As

Publication number Publication date
GB2229057A (en) 1990-09-12
FR2644017A1 (fr) 1990-09-07
US5017888A (en) 1991-05-21
GB2229057B (en) 1993-08-25
GB9003128D0 (en) 1990-04-11
JPH02253710A (ja) 1990-10-12
DE3906448C1 (enExample) 1990-03-15
FR2644017B1 (fr) 1993-11-12

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Legal Events

Date Code Title Description
FZDE Discontinued