JP2005539448A - Rf増幅器の直線性の保持 - Google Patents
Rf増幅器の直線性の保持 Download PDFInfo
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- JP2005539448A JP2005539448A JP2004537358A JP2004537358A JP2005539448A JP 2005539448 A JP2005539448 A JP 2005539448A JP 2004537358 A JP2004537358 A JP 2004537358A JP 2004537358 A JP2004537358 A JP 2004537358A JP 2005539448 A JP2005539448 A JP 2005539448A
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- 238000000034 method Methods 0.000 claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 3
- 230000005284 excitation Effects 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 21
- 230000006978 adaptation Effects 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 241001125929 Trisopterus luscus Species 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 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
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- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
- H03F1/0238—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply using supply converters
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- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/004—Control by varying the supply voltage
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
- Control Of Amplification And Gain Control (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims (20)
- 特性励振レベルを有し、供給電圧により給電されるRF電力出力ユニットを含むRF増幅器の直線性を保持する方法であって、RF電力出力ユニットの出力電圧を測定する段階と、測定した出力電圧を少なくとも1つの閾値電圧と比較して制御信号を生じさせる段階と、RF電力出力の特性励振レベル又は供給電圧を制御信号により適応させてRF電力出力ユニットをその飽和レベル以下で動作させる段階とを有することを特徴とする方法。
- 電力増幅器は、励振電圧をRF電力出力ユニットに印加する可変利得前置増幅器を含み、制御信号は、前置増幅器の利得を適応させるよう用いられることを特徴とする請求項1に記載の方法。
- 制御信号を前置増幅器の利得制御信号と合成することを特徴とする請求項2に記載の方法。
- 特性励振レベルを有し、供給電圧源により給電されるRF電力出力ユニットを備えたRF電力増幅器及び整合回路を有するアンテナ回路を、RF電力増幅器の直線性を保持することにより制御する方法であって、RF電力出力ユニットの出力電圧を測定する段階と、測定した出力電圧を少なくとも1つの閾値電圧と比較して制御信号を生じさせる段階と、出力整合回路を制御信号により適応させてRF電力出力ユニットをその飽和レベル以下で動作させる段階とを有することを特徴とする方法。
- 出力整合回路の適応を、インピーダンス変換関数の大きさ又は位相のいずれかを変化させることにより行うことを特徴とする請求項4に記載の方法。
- アナログ−ディジタル変換器による多閾値検出の場合、出力整合回路の適応及び供給電圧の適応を電力増幅器の効率の最適化と組み合わせることを特徴とする請求項4に記載の方法。
- RF電力出力ユニットの出力電圧を、閾値電圧と比較する前に整流することを特徴とする請求項1又は4に記載の方法。
- RF電力出力ユニットの出力電圧を演算増幅器により閾値電圧と比較することを特徴とする請求項1又は4に記載の方法。
- RF電力出力ユニットの出力電圧を少なくとも2つの並列の演算増幅器で閾値電圧と比較して少なくとも2つの制御信号を生じさせ、少なくとも2つの制御信号をベースバンドコントローラに送ることを特徴とする請求項8に記載の方法。
- 少なくとも2つの閾値電圧は、互いに異なる電圧レベルを有していることを特徴とする請求項9に記載の方法。
- 供給電圧を制御信号により給電されるベースバンドコントローラによって制御されるプログラム可能なDC−DC変換器により適応させることを特徴とする請求項1又は4に記載の方法。
- RF電力増幅器の直線性を保持する回路であって、RF電力増幅器は、特性励振レベルを有するRF電力出力ユニットを含み、前記回路は、RF電力出力ユニットの出力電圧を測定する測定ユニットと、RF電力出力ユニットの測定された出力電圧を閾値電圧と比較して制御信号を生じさせる比較ユニットと、RF電力増幅器の直線性を保持するためにRF電力出力ユニットをその飽和レベル以下で動作させるようRF電力出力ユニットの励振レベルを適応させる励振レベル適応ユニット又はRF電力出力ユニットの供給電圧を適応させる供給電圧適応ユニットとを有することを特徴とする回路。
- 電力増幅器は、励振電圧をRF電力出力ユニットに印加する可変利得前置増幅器を含み、制御信号は、比較ユニットから前置増幅器に送られて前置増幅器の利得を適応させることを特徴とする請求項12に記載の回路。
- 比較ユニットと前置増幅器との間に設けられていて、制御信号と前置増幅器の利得制御信号を結合する結合回路を有していることを特徴とする請求項13に記載の回路。
- RF電力増幅器及び整合回路を有するアンテナ回路を安定化させる回路であって、RF電力増幅器は、特性励振レベルを有するRF電力出力ユニットを含み、前記回路は、RF電力出力ユニットの出力電圧を測定する測定ユニットと、RF電力出力ユニットの測定された出力電圧を閾値電圧と比較して制御信号を生じさせる比較ユニットと、出力整合回路を制御信号により適応させ、それによりRF電力出力ユニットの励振レベルを適応させ、RF電力増幅器の直線性を保持するためにRF電力出力ユニットをその飽和レベル以下で動作させる励振レベル適応ユニットとを有することを特徴とする回路。
- 出力整合回路は、そのインピーダンス変換関数の大きさ又は位相のいずれかに関し適応可能であるよう構成されていることを特徴とする請求項15に記載の回路。
- RF電力出力ユニットと比較ユニットとの間に設けられた整流器を有していることを特徴とする請求項12又は15に記載の回路。
- 比較ユニットは、演算増幅器を有していることを特徴とする請求項12又は15に記載の回路。
- 少なくとも2つの制御副信号を生じさせる少なくとも2つの並列の演算増幅器を有し、少なくとも2つの制御副信号は、ベースバンドコントローラに送られてRF電力出力ユニットの利得を適応させてその利得を適応させることを特徴とする請求項18に記載の回路。
- 請求項12〜19のうちいずれか一に記載の回路を有する装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02078854 | 2002-09-17 | ||
PCT/IB2003/003422 WO2004027990A1 (en) | 2002-09-17 | 2003-08-04 | Preserving linearity of a rf power amplifier |
Publications (2)
Publication Number | Publication Date |
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JP2005539448A true JP2005539448A (ja) | 2005-12-22 |
JP4562525B2 JP4562525B2 (ja) | 2010-10-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004537358A Expired - Fee Related JP4562525B2 (ja) | 2002-09-17 | 2003-08-04 | Rf増幅器の直線性の保持 |
Country Status (8)
Country | Link |
---|---|
US (2) | US7482873B2 (ja) |
EP (1) | EP1543614B1 (ja) |
JP (1) | JP4562525B2 (ja) |
CN (1) | CN100505528C (ja) |
AT (1) | ATE467265T1 (ja) |
AU (1) | AU2003250434A1 (ja) |
DE (1) | DE60332467D1 (ja) |
WO (1) | WO2004027990A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006319508A (ja) * | 2005-05-11 | 2006-11-24 | Renesas Technology Corp | 高周波電力増幅器およびそれを用いた送信器および移動体通信端末 |
JP2016149750A (ja) * | 2015-02-15 | 2016-08-18 | スカイワークス ソリューションズ, インコーポレイテッドSkyworks Solutions, Inc. | 可変供給電圧を有する電力増幅システム |
WO2021256088A1 (ja) * | 2020-06-19 | 2021-12-23 | 株式会社村田製作所 | 高周波回路及び通信装置 |
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- 2003-08-04 AU AU2003250434A patent/AU2003250434A1/en not_active Abandoned
- 2003-08-04 EP EP03797397A patent/EP1543614B1/en not_active Expired - Lifetime
- 2003-08-04 US US10/527,775 patent/US7482873B2/en not_active Expired - Lifetime
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JP2006319508A (ja) * | 2005-05-11 | 2006-11-24 | Renesas Technology Corp | 高周波電力増幅器およびそれを用いた送信器および移動体通信端末 |
JP2016149750A (ja) * | 2015-02-15 | 2016-08-18 | スカイワークス ソリューションズ, インコーポレイテッドSkyworks Solutions, Inc. | 可変供給電圧を有する電力増幅システム |
JP2018160925A (ja) * | 2015-02-15 | 2018-10-11 | スカイワークス ソリューションズ, インコーポレイテッドSkyworks Solutions, Inc. | 可変供給電圧を有する電力増幅システム |
US10615835B2 (en) | 2015-02-15 | 2020-04-07 | Skyworks Solutions, Inc. | Power amplification system with variable supply voltage |
WO2021256088A1 (ja) * | 2020-06-19 | 2021-12-23 | 株式会社村田製作所 | 高周波回路及び通信装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2004027990A1 (en) | 2004-04-01 |
US20050270105A1 (en) | 2005-12-08 |
EP1543614A1 (en) | 2005-06-22 |
AU2003250434A1 (en) | 2004-04-08 |
US20090289719A1 (en) | 2009-11-26 |
EP1543614B1 (en) | 2010-05-05 |
CN100505528C (zh) | 2009-06-24 |
US7482873B2 (en) | 2009-01-27 |
CN1682440A (zh) | 2005-10-12 |
ATE467265T1 (de) | 2010-05-15 |
DE60332467D1 (en) | 2010-06-17 |
JP4562525B2 (ja) | 2010-10-13 |
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