JP2005531224A - フォワード増幅器 - Google Patents

フォワード増幅器 Download PDF

Info

Publication number
JP2005531224A
JP2005531224A JP2004516186A JP2004516186A JP2005531224A JP 2005531224 A JP2005531224 A JP 2005531224A JP 2004516186 A JP2004516186 A JP 2004516186A JP 2004516186 A JP2004516186 A JP 2004516186A JP 2005531224 A JP2005531224 A JP 2005531224A
Authority
JP
Japan
Prior art keywords
signal
intermodulation
input
output
path
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.)
Pending
Application number
JP2004516186A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005531224A5 (enExample
Inventor
ブロジット、ジェイムズ、アール．
Original Assignee
ソマ ネットワークス インコーポレイテッド
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 ソマ ネットワークス インコーポレイテッド filed Critical ソマ ネットワークス インコーポレイテッド
Publication of JP2005531224A publication Critical patent/JP2005531224A/ja
Publication of JP2005531224A5 publication Critical patent/JP2005531224A5/ja
Pending legal-status Critical Current

Links

Images

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)
JP2004516186A 2002-06-25 2003-06-25 フォワード増幅器 Pending JP2005531224A (ja)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
JP2005531224A true JP2005531224A (ja) 2005-10-13
JP2005531224A5 JP2005531224A5 (enExample) 2006-08-10

Family

ID=30000669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004516186A Pending JP2005531224A (ja) 2002-06-25 2003-06-25 フォワード増幅器

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

Family Cites Families (12)

* 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
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5570063A (en) 1995-05-18 1996-10-29 Spectrian, Inc. RF power amplifier with signal predistortion for improved linearity
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
US6104241A (en) 1998-11-18 2000-08-15 Spectrian High efficiency feed-forward RF power amplifier with predistoration enchancement
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

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
AU2003247621B2 (en) 2008-05-22
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
MXPA05000247A (es) 2005-04-11

Similar Documents

Publication Publication Date Title
US5444418A (en) Method and apparatus for feedforward power amplifying
US7002407B2 (en) Delay mismatched feed forward amplifier system using penalties and floors for control
US10651809B2 (en) Control system for a power amplifier
JPH0878965A (ja) フィードフォワード増幅器
JP2005531224A (ja) フォワード増幅器
EP1001525B1 (en) Feed forward compensation using phase and time modulation
EP1003278B1 (en) Nested feed forward distortion reduction system
EP1193861A3 (en) Feedforward amplifier
US6069531A (en) Feed forward amplifier improvement incorporating an automatic gain and phase controller
US6166600A (en) Automatic gain and phase controlled feedforward amplifier without pilot signal
JP2005531224A5 (enExample)
US20050046476A1 (en) Generation device for a magnetic resonance excitation signal
JPH0720235A (ja) モノパルス追尾装置
EP1573907B1 (en) Delay mismatched feed forward amplifier system using penalties and floors for control
JP2002185266A (ja) 利得監視機能付きフィードフォワード増幅器
EP1425848A2 (en) Feed forward compensation circuit
JPH02260825A (ja) 干渉波除去回路

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060626

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060626

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090115

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090120

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20090415

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20090422

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20091006