JP5180311B2 - 改良増幅装置 - Google Patents
改良増幅装置 Download PDFInfo
- Publication number
- JP5180311B2 JP5180311B2 JP2010530954A JP2010530954A JP5180311B2 JP 5180311 B2 JP5180311 B2 JP 5180311B2 JP 2010530954 A JP2010530954 A JP 2010530954A JP 2010530954 A JP2010530954 A JP 2010530954A JP 5180311 B2 JP5180311 B2 JP 5180311B2
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- amplitude
- signal component
- composite
- signal
- 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.)
- Expired - Fee Related
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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
- H03F1/02—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
- H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
-
- 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
-
- 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
- H03F1/3282—Acting on the phase and the amplitude of the input signal
-
- 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
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0483—Transmitters with multiple parallel paths
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/324—An amplitude modulator or demodulator being used in the amplifier circuit
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Description
入力信号を第1信号成分と第2信号成分とに分解する。
であり、第2信号成分は、第2分岐202に供給され、
であり、ここで、
はアウトフェージング角であり、
は最大振幅である。
第1信号成分および第2信号成分のアウトフェージング角の位相シフトを行う。この方法ステップ310では、アウトフェージング角φ(t)の位相シフトを行う。ここで、第1分岐201における第1信号成分の位相が±φ(t)である場合、第2分岐202における第2信号成分の位相はμφ(t)である。2つの増幅器210、220間の差動位相シフトを変えることにより、振幅変調を作り出す。
複合増幅器200の総効率を増加させるように、上記第1信号成分における振幅を、上記第2信号成分における振幅と差別化する。ステップ320では、第1増幅器210における振幅を、第2増幅器220における振幅と差別化し、複合増幅器200の総効率を増加させる。
差別化ステップ320から生じ得る余分のスペクトル項のプレディストーションを行う。
第1信号成分を第1増幅器210へ、第2信号成分を第2増幅器220へ提供する。
各信号がそれぞれの電力増幅器を通過した後、2つの信号成分を出力信号へと組み合わせる。
Claims (7)
- 無線通信システム(100)のノード(120)における複合増幅器(200)の振幅を制御する方法において、前記複合増幅器(200)は、出力結合ネットワーク(230)を介して負荷(240)へ接続される第1増幅器(210)と第2増幅器(220)とを備え、
入力信号を第1信号成分と第2信号成分とに分解するステップ(300)と、
前記第1信号成分及び第2信号成分が一定の包絡線信号ではないようにすることで前記複合増幅器(200)の総効率が増加するように、前記第1信号成分における振幅を前記第2信号成分における振幅と差別化するステップ(320)と
を含むことを特徴とする方法。 - 前記第1信号成分および前記第2信号成分のアウトフェージング角の位相シフトを行うステップ(310)と、
前記第1信号成分を前記第1増幅器(210)へ、前記第2信号成分を前記第2増幅器(220)へ供給するステップ(340)と
をさらに含む、請求項1に記載の方法。 - 無線通信システム(100)のノード(120)において用いる複合増幅器(200)において、前記複合増幅器(200)は、出力結合ネットワーク(230)を介して負荷(240)へ接続される第1増幅器(210)と第2増幅器(220)とを備え、
前記第1増幅器(210)および前記第2増幅器(220)は、前記第1増幅器における第1信号成分及び第2増幅器における第2信号成分が一定の包絡線信号ではないようにすることで前記複合増幅器(200)の総効率が増加するように、前記第1増幅器(210)における振幅が前記第2増幅器(220)における振幅と差別化され、更に非対称に制御されることを特徴とする複合増幅器(200)。 - 前記複合増幅器(200)は、前記第1増幅器(210)における振幅を前記第2増幅器(220)における振幅と差別化する制御部(270)をさらに備える、請求項3に記載の複合増幅器(200)。
- 請求項3又は請求項4に記載の複合増幅器(200)を少なくとも1つ備える無線送信装置(110、120)。
- 前記無線送信装置(110、120)は無線アクセスポイント(120)である、請求項5に記載の無線送信装置(110、120)。
- 前記無線送信装置(110、120)は無線端末(110)である、請求項5に記載の無線送信装置(110、120)。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SE2007/050785 WO2009054765A1 (en) | 2007-10-26 | 2007-10-26 | Improved amplifying device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011501609A JP2011501609A (ja) | 2011-01-06 |
JP5180311B2 true JP5180311B2 (ja) | 2013-04-10 |
Family
ID=40579755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010530954A Expired - Fee Related JP5180311B2 (ja) | 2007-10-26 | 2007-10-26 | 改良増幅装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8072264B2 (ja) |
EP (1) | EP2212992B1 (ja) |
JP (1) | JP5180311B2 (ja) |
WO (1) | WO2009054765A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8212541B2 (en) | 2008-05-08 | 2012-07-03 | Massachusetts Institute Of Technology | Power converter with capacitive energy transfer and fast dynamic response |
EP2353219B1 (en) | 2008-11-11 | 2018-05-02 | Massachusetts Institute of Technology | An asymmetric multilevel outphasing architecture for rf amplifiers |
US10389235B2 (en) | 2011-05-05 | 2019-08-20 | Psemi Corporation | Power converter |
US10680515B2 (en) | 2011-05-05 | 2020-06-09 | Psemi Corporation | Power converters with modular stages |
US9882471B2 (en) | 2011-05-05 | 2018-01-30 | Peregrine Semiconductor Corporation | DC-DC converter with modular stages |
CN108964442A (zh) | 2011-05-05 | 2018-12-07 | 北极砂技术有限公司 | 用于电源转换的装置 |
US9537456B2 (en) | 2012-10-30 | 2017-01-03 | Eta Devices, Inc. | Asymmetric multilevel backoff amplifier with radio-frequency splitter |
US8824978B2 (en) | 2012-10-30 | 2014-09-02 | Eta Devices, Inc. | RF amplifier architecture and related techniques |
US8829993B2 (en) | 2012-10-30 | 2014-09-09 | Eta Devices, Inc. | Linearization circuits and methods for multilevel power amplifier systems |
US9166536B2 (en) | 2012-10-30 | 2015-10-20 | Eta Devices, Inc. | Transmitter architecture and related methods |
US8619445B1 (en) | 2013-03-15 | 2013-12-31 | Arctic Sand Technologies, Inc. | Protection of switched capacitor power converter |
US9660520B2 (en) | 2013-04-09 | 2017-05-23 | Massachusetts Institute Of Technology | Method and apparatus to provide power conversion with high power factor |
WO2015069516A1 (en) | 2013-10-29 | 2015-05-14 | Massachusetts Institute Of Technology | Switched-capacitor split drive transformer power conversion circuit |
WO2016004427A1 (en) | 2014-07-03 | 2016-01-07 | Massachusetts Institute Of Technology | High-frequency, high-density power factor correction conversion for universal input grid interface |
US9768731B2 (en) | 2014-07-23 | 2017-09-19 | Eta Devices, Inc. | Linearity and noise improvement for multilevel power amplifier systems using multi-pulse drain transitions |
US9979421B2 (en) | 2015-03-02 | 2018-05-22 | Eta Devices, Inc. | Digital pre-distortion (DPD) training and calibration system and related techniques |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3927379A (en) * | 1975-01-08 | 1975-12-16 | Bell Telephone Labor Inc | Linear amplification using nonlinear devices and inverse sine phase modulation |
JPH0974320A (ja) | 1995-09-05 | 1997-03-18 | Nippon Motorola Ltd | 定振幅波合成型電力増幅回路 |
US6825719B1 (en) * | 2000-05-26 | 2004-11-30 | Intel Corporation | RF power amplifier and methods for improving the efficiency thereof |
SE516847C2 (sv) * | 2000-07-07 | 2002-03-12 | Ericsson Telefon Ab L M | Sammansatt förstärkare samt sändare som innefattar en sådan förstärkare |
US6751265B1 (en) * | 2000-09-13 | 2004-06-15 | Tropian, Inc. | Method and system of amplitude modulation using dual/split channel unequal amplification |
SE521268C2 (sv) * | 2001-05-18 | 2003-10-14 | Ericsson Telefon Ab L M | Sammansatt förstärkare med optimerad linjäritet och effektivitet |
AU2002359211A1 (en) * | 2002-12-19 | 2004-07-14 | Telefonaktiebolaget Lm Ericsson | Composite amplifier structure |
SE0302586D0 (sv) | 2003-09-26 | 2003-09-26 | Ericsson Telefon Ab L M | Composite power amplifier |
JP4549163B2 (ja) * | 2004-11-15 | 2010-09-22 | パナソニック株式会社 | Eerシステム及びeerシステムにおける高周波飽和増幅器の効率最適化調整方法 |
ATE545198T1 (de) * | 2005-12-30 | 2012-02-15 | Ericsson Telefon Ab L M | Effizienter zusammengesetzter verstärker |
-
2007
- 2007-10-26 WO PCT/SE2007/050785 patent/WO2009054765A1/en active Application Filing
- 2007-10-26 US US12/680,048 patent/US8072264B2/en not_active Expired - Fee Related
- 2007-10-26 EP EP07835369.5A patent/EP2212992B1/en active Active
- 2007-10-26 JP JP2010530954A patent/JP5180311B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2212992A1 (en) | 2010-08-04 |
US8072264B2 (en) | 2011-12-06 |
EP2212992A4 (en) | 2011-11-02 |
US20100201441A1 (en) | 2010-08-12 |
EP2212992B1 (en) | 2014-05-21 |
WO2009054765A1 (en) | 2009-04-30 |
JP2011501609A (ja) | 2011-01-06 |
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