JP2020526995A - デジタル電力増幅器(dpa)システム及びデジタルドハティ電力増幅器(ddpa)システム - Google Patents
デジタル電力増幅器(dpa)システム及びデジタルドハティ電力増幅器(ddpa)システム Download PDFInfo
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- 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
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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
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
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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
- H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
- H03F1/0272—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 polarisation voltage or current, e.g. gliding Class A by using a signal derived from the output signal
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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
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
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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
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
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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
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
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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
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
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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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
- H03F3/265—Push-pull amplifiers; Phase-splitters therefor with field-effect transistors only
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path
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Abstract
Description
図5は、増幅器のモデルを更新する極値探索(ES)法のブロック図を示す。極値探索は、終了条件が満たされるまで、所定周波数を有する摂動信号を用いて増幅器のパラメータに反復的に摂動を与える。例えば、極値探索の反復は、極値探索の先行する反復の間に更新された摂動信号を用いて、増幅器のパラメータに摂動を与え(560)、摂動560に応答して、増幅器性能のコスト関数を求める(570)。例えば、摂動信号は、所定周波数の周期信号を含むことができる。
Claims (20)
- デジタル電力増幅器(DPA)システムであって、
制御入力と、出力信号を生成する出力とを有する電力増幅器(PA)回路と、
入力インターフェースと、出力インターフェースと、適応制御アルゴリズムを記憶するメモリと、前記メモリに関連して前記適応制御アルゴリズムに基づいて命令を実行するプロセッサとを備える適応制御回路であって、前記入力インターフェースは、入力状態信号及び前記PA回路の出力信号を受け取り、前記適応制御アルゴリズムは、前記入力状態信号及び前記出力信号に応じて、前記PA回路の動作を制御するために前記出力インターフェースから前記制御入力に送信される制御信号の制御パラメータを求める、適応制御回路と、
を備える、DPAシステム。 - 前記プロセッサは、前記適応制御アルゴリズムに従って前記制御パラメータを推定するためのコスト関数を選択する、請求項1に記載のDPAシステム。
- 前記コスト関数は、性能コスト関数及び摂動コスト関数を含む、請求項1に記載のDPAシステム。
- 前記性能コスト関数は、前記DPA回路に関する電力付加効率(PAE)、利得、及び隣接チャネル漏洩電力比(ACPR)のパラメータを含む、請求項3に記載のDPAシステム。
- 前記適応制御アルゴリズムは、前記コスト関数を最大化することによって前記制御パラメータを求める、請求項3に記載のDPAシステム。
- 前記PA回路は、アウトフェージング電力増幅器回路、平衡電力増幅器回路又はプッシュプル電力増幅器回路であり、前記PA回路は、少なくとも2つのパワートランジスタと、前記パワートランジスタの出力信号を結合する出力コンバイナーとを備える、請求項1に記載のDPAシステム。
- 前記パワートランジスタは電界効果トランジスタ(FET)である、請求項6に記載のDPAシステム。
- 前記パワートランジスタは、窒化ガリウム(GaN)材料を含む材料から形成されている、請求項6に記載のDPAシステム。
- 前記PA回路は4つ以上のPAを備え、前記適応制御回路は4つ以上の出力信号を出力する、請求項1に記載のDPAシステム。
- デジタルドハティ電力増幅器(DDPA)システムであって、
制御入力と、出力信号を生成する出力とを有するドハティ電力増幅器(DPA)回路と、
入力インターフェースと、出力インターフェースと、適応制御アルゴリズムを記憶するメモリと、前記メモリに関連して前記適応制御アルゴリズムに基づいて命令を実行するプロセッサとを備える適応制御回路であって、前記入力インターフェースは、入力状態信号及び前記DPA回路の出力信号を受け取り、前記適応制御アルゴリズムは、前記入力状態信号及び前記出力信号に応じて、前記DPA回路の動作を制御するために前記出力インターフェースから前記制御入力に送信される制御信号の制御パラメータを求める、適応制御回路と、
を備える、DDPAシステム。 - 前記プロセッサは、前記適応制御アルゴリズムに従って前記制御パラメータを推定するためのコスト関数を選択する、請求項11に記載のDDPAシステム。
- 前記コスト関数は、性能コスト関数及び摂動コスト関数を含む、請求項11に記載のDDPAシステム。
- 前記性能コスト関数は、前記DDPA回路に関する電力付加効率(PAE)、利得、及び隣接チャネル漏洩電力比(ACPR)のパラメータを含む、請求項13に記載のDDPAシステム。
- 前記適応制御アルゴリズムは、前記コスト関数を最大化することによって前記制御パラメータを求める、請求項13に記載のDDPAシステム。
- 前記DPA回路は、少なくとも2つのパワートランジスタと、前記パワートランジスタの出力信号を結合する出力コンバイナーとを備える、請求項11に記載のDDPAシステム。
- 前記パワートランジスタは電界効果トランジスタ(FET)である、請求項16に記載のDDPAシステム。
- 前記パワートランジスタは、窒化ガリウム(GaN)材料を含む材料から形成されている、請求項16に記載のDDPAシステム。
- 前記DPA回路は4つ以上のPAを備え、前記適応制御回路の出力信号数は前記PAの数に等しい、請求項11に記載のDDPAシステム。
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US15/800,724 US10454427B2 (en) | 2017-11-01 | 2017-11-01 | Power amplifier system and learning-based autotuning method thereof |
PCT/JP2018/014651 WO2019087430A1 (en) | 2017-11-01 | 2018-03-30 | Digital power- amplifier (dpa) system and digital doherty power- amplifier (ddpa) system |
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US11948071B2 (en) * | 2020-12-23 | 2024-04-02 | Mitsubishi Electric Research Laboratories, Inc. | Deep learning-based online adaptation of digital pre-distortion and power amplifier systems |
US11843353B2 (en) * | 2020-12-23 | 2023-12-12 | Mitsubishi Electric Research Laboratories, Inc. | Interactive online adaptation for digital pre-distortion and power amplifier system auto-tuning |
CN113542979A (zh) * | 2021-07-29 | 2021-10-22 | 广州朗国电子科技股份有限公司 | 一种调节数字功放的方法及其装置 |
CN113810023B (zh) * | 2021-08-31 | 2023-05-09 | 电子科技大学 | 一种数字功率发射芯片的阻抗调制***及方法 |
CN114553153A (zh) * | 2022-02-28 | 2022-05-27 | 电子科技大学 | 一种幅相独立可调的模拟预失真线性化器 |
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