AU2003247621B2 - Forward amplifiers - Google Patents

Forward amplifiers Download PDF

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Publication number
AU2003247621B2
AU2003247621B2 AU2003247621A AU2003247621A AU2003247621B2 AU 2003247621 B2 AU2003247621 B2 AU 2003247621B2 AU 2003247621 A AU2003247621 A AU 2003247621A AU 2003247621 A AU2003247621 A AU 2003247621A AU 2003247621 B2 AU2003247621 B2 AU 2003247621B2
Authority
AU
Australia
Prior art keywords
signal
feed
intermodulation
path
input
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.)
Ceased
Application number
AU2003247621A
Other languages
English (en)
Other versions
AU2003247621A1 (en
Inventor
James R. Blodgett
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.)
Soma Networks Inc
Original Assignee
Soma Networks Inc
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 Soma Networks Inc filed Critical Soma Networks Inc
Publication of AU2003247621A1 publication Critical patent/AU2003247621A1/en
Application granted granted Critical
Publication of AU2003247621B2 publication Critical patent/AU2003247621B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AU2003247621A 2002-06-25 2003-06-25 Forward amplifiers Ceased AU2003247621B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US39108402P 2002-06-25 2002-06-25
US60/391,084 2002-06-25
PCT/US2003/019849 WO2004001956A2 (en) 2002-06-25 2003-06-25 Forward amplifiers

Publications (2)

Publication Number Publication Date
AU2003247621A1 AU2003247621A1 (en) 2004-01-06
AU2003247621B2 true AU2003247621B2 (en) 2008-05-22

Family

ID=30000669

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003247621A Ceased AU2003247621B2 (en) 2002-06-25 2003-06-25 Forward amplifiers

Country Status (8)

Country Link
US (1) US7342446B2 (enExample)
EP (1) EP1552605A4 (enExample)
JP (1) JP2005531224A (enExample)
CN (1) CN100472948C (enExample)
AU (1) AU2003247621B2 (enExample)
CA (1) CA2527628A1 (enExample)
MX (1) MXPA05000247A (enExample)
WO (1) WO2004001956A2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4652974B2 (ja) * 2005-12-27 2011-03-16 富士通株式会社 タイミング調整装置及びタイミング調整方法
US11036262B1 (en) 2008-01-14 2021-06-15 Micro Mobio Corporation Radio frequency power amplifier with adjacent channel leakage correction circuit
US9088258B2 (en) * 2008-01-14 2015-07-21 Micro Mobio Corporation RF power amplifier with linearity control
US10938360B1 (en) 2011-10-26 2021-03-02 Micro Mobio Corporation Multimode multiband wireless device with broadband power amplifier
EP3311497B1 (en) 2015-06-16 2021-08-04 Commscope Technologies LLC Radio frequency transmitter
US11515617B1 (en) 2019-04-03 2022-11-29 Micro Mobio Corporation Radio frequency active antenna system in a package
US12463322B1 (en) 2019-04-03 2025-11-04 Micro Mobio Corporation Antenna in display
US20250219602A1 (en) * 2023-12-29 2025-07-03 Analog Devices International Unlimited Company Power amplifier system with interference cancellation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077532A (en) * 1990-12-17 1991-12-31 Motorola, Inc. Feed forward distortion minimization circuit
US5570063A (en) * 1995-05-18 1996-10-29 Spectrian, Inc. RF power amplifier with signal predistortion for improved linearity
WO2001006640A1 (en) * 1999-07-16 2001-01-25 Spectrian Corporation High efficiency feed-forward rf power amplifier with predistortion enhancement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US6078216A (en) * 1998-03-31 2000-06-20 Spectrian Corporation Aliased wide band performance monitor for adjusting predistortion and vector modulator control parameters of RF amplifier
US5963091A (en) * 1998-04-01 1999-10-05 Chen; Jiunn-Tsair Article comprising a power amplifier with feed forward linearizer using a RLS parameter tracking algorithm
IL125022A (en) * 1998-06-21 2001-09-13 Israel Bar David Methods and apparatus for adaptive adjustment of feed-forward linearized amplifiers
US6392480B1 (en) * 1999-08-19 2002-05-21 Lucent Technologies Inc. Alternating gain and phase control system and method
US6211733B1 (en) * 1999-10-22 2001-04-03 Powerwave Technologies, Inc. Predistortion compensation for a power amplifier
JP2001136033A (ja) * 1999-11-05 2001-05-18 Nec Corp フィードフォワード増幅器
CN1164025C (zh) * 2000-07-29 2004-08-25 华为技术有限公司 利用导频的前馈线性功率放大方法及装置
US6819173B2 (en) * 2001-04-19 2004-11-16 Motorola, Inc. Method and apparatus for reduction of distortion in a transmitter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077532A (en) * 1990-12-17 1991-12-31 Motorola, Inc. Feed forward distortion minimization circuit
US5570063A (en) * 1995-05-18 1996-10-29 Spectrian, Inc. RF power amplifier with signal predistortion for improved linearity
WO2001006640A1 (en) * 1999-07-16 2001-01-25 Spectrian Corporation High efficiency feed-forward rf power amplifier with predistortion enhancement

Also Published As

Publication number Publication date
AU2003247621A1 (en) 2004-01-06
US20050174173A1 (en) 2005-08-11
EP1552605A2 (en) 2005-07-13
WO2004001956A3 (en) 2005-04-28
EP1552605A4 (en) 2007-05-30
CN1663116A (zh) 2005-08-31
US7342446B2 (en) 2008-03-11
CA2527628A1 (en) 2003-12-31
CN100472948C (zh) 2009-03-25
WO2004001956A2 (en) 2003-12-31
JP2005531224A (ja) 2005-10-13
MXPA05000247A (es) 2005-04-11

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired