JP6138157B2 - 包絡線追跡増幅器の電力増幅器効率を高めるために整形テーブルに適用されるクレストファクタ低減 - Google Patents
包絡線追跡増幅器の電力増幅器効率を高めるために整形テーブルに適用されるクレストファクタ低減 Download PDFInfo
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- JP6138157B2 JP6138157B2 JP2014552602A JP2014552602A JP6138157B2 JP 6138157 B2 JP6138157 B2 JP 6138157B2 JP 2014552602 A JP2014552602 A JP 2014552602A JP 2014552602 A JP2014552602 A JP 2014552602A JP 6138157 B2 JP6138157 B2 JP 6138157B2
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- 238000007493 shaping process Methods 0.000 title claims description 85
- 230000009467 reduction Effects 0.000 title claims description 16
- 230000003321 amplification Effects 0.000 claims description 28
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 23
- 230000006872 improvement Effects 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- 238000012512 characterization method Methods 0.000 description 11
- 230000003595 spectral effect Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 241001125929 Trisopterus luscus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
-
- 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
- H03F1/0222—Continuous control by using a signal derived from the input signal
-
- 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
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Description
本発明はここで、添付の図面を参照して記述される。
102・・・電力増幅器
104・・・アップコンバータ
106・・・包絡線検波器
108・・・整形テーブル
110・・・包絡線被変調電源
111・・・ルックアップテーブル
113・・整形制御ブロック
115、119・・・乗算器
107、112、114、116、117、118、120、121、122
・・・ライン
202、204、206・・・プロット
214、219・・・シェーピング関数
210、211、212、213、216、218、220・・・トレース
Claims (20)
- 包絡線追跡増幅段の包絡線被変調電源への入力を制御する方法であって、
a.増幅される信号の包絡線を表す包絡線信号を生成するステップと、
b.整形された包絡線信号を生成するために、前記包絡線信号にシェーピング関数を適用するステップであって、この適用するステップは、
高い包絡線信号の値において整形された包絡線信号をクリップすることを備える、ステップと、
c.前記包絡線被変調電源への入力として、前記整形された包絡線信号を提供するステップと、
を備える方法。 - 前記整形された包絡線信号のクリッピングが、前記増幅器出力信号のクレストファクタの低減をもたらす、請求項1に記載の方法。
- 前記整形された包絡線信号のクリッピングが、平均電力の増大および電力増幅器効率の向上をもたらす、請求項2に記載の方法。
- 前記クリッピングのシャープネスを調整するステップをさらに備える、請求項1に記載の方法。
- 前記整形された包絡線信号のクリッピングレベルは、平均送信機電力に依存して調整される、請求項1に記載の方法。
- 前記平均送信機電力が低減されると、前記整形された包絡線信号のクリッピングレベルは低減される、請求項1に記載の方法。
- 前記整形された包絡線信号のクリッピングが、少なくとも1つの整形ブロックへの入力、または整形ブロックからの出力をスケーリングすることを備える、請求項1に記載の方法。
- 前記整形された包絡線信号のクリッピングが、既存のシェーピング関数を修正されたシェーピング関数に置き換えることを備える、請求項1に記載の方法。
- 前記適用するステップが、前記整形された包絡線信号を前記包絡線信号の低値でクリッピングしないことを更に備える、請求項1に記載の方法。
- 前記生成するステップが 制御信号と増幅される信号の包絡線を表す包絡線信号を検波器によって生成することを備え、前記適用するステップが、前記制御信号に応答する前記整形された包絡線信号を生成するために、整形ブロックを使用して前記包絡線信号にシェービング関数を適用することを備える、請求項1に記載の方法。
- 包絡線被変調電源および増幅器を含む包絡線追跡増幅段であって、前記包絡線被変調電源は、
整形された包絡線信号を生成するよう増幅器によって増幅された信号の包絡線を表す包絡線信号にシェーピング関数を適用するのに適している整形ブロックを更に備え、前記整形ブロックは、包絡線信号の高値において前記整形された包絡線信号をクリップするよう更に適合される、包絡線追跡増幅段。 - 前記整形された包絡線信号のクリッピングが、前記増幅器出力信号のクレストファクタの低減をもたらす、請求項11に記載の包絡線追跡増幅段。
- 前記整形された包絡線信号のクリッピングが、平均電力の増大および増幅器の効率の向上をもたらす、請求項12に記載の包絡線追跡増幅段。
- 前記整形ブロックは、前記クリッピングのシャープネスを調整するようにさらに適合される、請求項11に記載の包絡線追跡増幅段。
- 前記整形ブロックは、前記平均送信機電力に依存して前記整形された包絡線信号のクリッピングレベルを調整するように適合される、請求項14に記載の包絡線追跡増幅段。
- 前記整形ブロックは、前記平均送信機電力が低減されると、前記整形された包絡線信号のクリッピングレベルを調整するように適合される、請求項14に記載の包絡線追跡増幅段。
- 少なくとも1つの前記整形ブロックへの入力、または前記整形ブロックからの出力をクリップするためのスケーリングブロックをさらに備える、請求項15に記載の包絡線追跡増幅段。
- 前記整形ブロックが、既存のシェーピング関数を修正されたシェーピング関数に置き換えるように適合される、請求項15に記載の包絡線追跡増幅段。
- 前記整形ブロックは、整形された包絡線信号の低値でクリッピングしないことをさらに適合される、請求項11に記載の包絡線追跡増幅段。
- 前記整形ブロックは、シェーピング関数を検波器からの制御信号に応答する包絡線信号に適用するのに適している検波器をさらに備える、請求項11に記載の包絡線追跡増幅段。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1200628.4 | 2012-01-16 | ||
GB1200628.4A GB2498392B (en) | 2012-01-16 | 2012-01-16 | Crest factor reduction applied to shaping table to increase power amplifier efficency of envelope tracking amplifier |
PCT/EP2013/050708 WO2013107755A1 (en) | 2012-01-16 | 2013-01-16 | Crest factor reduction applied to shaping table to increase power amplifier efficiency of envelope tracking amplifier |
Publications (2)
Publication Number | Publication Date |
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JP2015507898A JP2015507898A (ja) | 2015-03-12 |
JP6138157B2 true JP6138157B2 (ja) | 2017-05-31 |
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JP2014552602A Expired - Fee Related JP6138157B2 (ja) | 2012-01-16 | 2013-01-16 | 包絡線追跡増幅器の電力増幅器効率を高めるために整形テーブルに適用されるクレストファクタ低減 |
Country Status (7)
Country | Link |
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US (1) | US9385680B2 (ja) |
EP (1) | EP2792065B8 (ja) |
JP (1) | JP6138157B2 (ja) |
KR (1) | KR101755202B1 (ja) |
CN (1) | CN104221282B (ja) |
GB (1) | GB2498392B (ja) |
WO (1) | WO2013107755A1 (ja) |
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-
2012
- 2012-01-16 GB GB1200628.4A patent/GB2498392B/en not_active Expired - Fee Related
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2013
- 2013-01-16 JP JP2014552602A patent/JP6138157B2/ja not_active Expired - Fee Related
- 2013-01-16 US US13/742,506 patent/US9385680B2/en not_active Expired - Fee Related
- 2013-01-16 WO PCT/EP2013/050708 patent/WO2013107755A1/en active Application Filing
- 2013-01-16 KR KR1020147022634A patent/KR101755202B1/ko active IP Right Grant
- 2013-01-16 CN CN201380011508.5A patent/CN104221282B/zh not_active Expired - Fee Related
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GB2498392A (en) | 2013-07-17 |
GB201200628D0 (en) | 2012-02-29 |
EP2792065B8 (en) | 2018-05-02 |
EP2792065B1 (en) | 2018-03-28 |
CN104221282A (zh) | 2014-12-17 |
GB2498392B (en) | 2016-01-13 |
US9385680B2 (en) | 2016-07-05 |
CN104221282B (zh) | 2017-03-08 |
JP2015507898A (ja) | 2015-03-12 |
US20140028370A1 (en) | 2014-01-30 |
KR101755202B1 (ko) | 2017-07-07 |
WO2013107755A1 (en) | 2013-07-25 |
EP2792065A1 (en) | 2014-10-22 |
KR20140116493A (ko) | 2014-10-02 |
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