SE524408C2 - Effektiv generering av radiofrekventa strömmar - Google Patents

Effektiv generering av radiofrekventa strömmar

Info

Publication number
SE524408C2
SE524408C2 SE0201908A SE0201908A SE524408C2 SE 524408 C2 SE524408 C2 SE 524408C2 SE 0201908 A SE0201908 A SE 0201908A SE 0201908 A SE0201908 A SE 0201908A SE 524408 C2 SE524408 C2 SE 524408C2
Authority
SE
Sweden
Prior art keywords
signal
bias signal
amplitude
bias
amplifier
Prior art date
Application number
SE0201908A
Other languages
English (en)
Swedish (sv)
Other versions
SE0201908L (sv
SE0201908D0 (sv
Inventor
Richard Hellberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE0201908A priority Critical patent/SE524408C2/sv
Publication of SE0201908D0 publication Critical patent/SE0201908D0/xx
Priority to AU2003239069A priority patent/AU2003239069A1/en
Priority to US10/518,238 priority patent/US7274255B2/en
Priority to PCT/SE2003/001068 priority patent/WO2004001958A1/en
Priority to EP03733783.9A priority patent/EP1518320B1/de
Publication of SE0201908L publication Critical patent/SE0201908L/
Publication of SE524408C2 publication Critical patent/SE524408C2/sv

Links

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
    • H03F1/0261—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
    • H03F1/0266—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 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3294—Acting on the real and imaginary components of the input signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
SE0201908A 2002-06-19 2002-06-19 Effektiv generering av radiofrekventa strömmar SE524408C2 (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE0201908A SE524408C2 (sv) 2002-06-19 2002-06-19 Effektiv generering av radiofrekventa strömmar
AU2003239069A AU2003239069A1 (en) 2002-06-19 2003-06-19 Efficient generation of radio frequency currents
US10/518,238 US7274255B2 (en) 2002-06-19 2003-06-19 Efficient generation of radio frequency currents
PCT/SE2003/001068 WO2004001958A1 (en) 2002-06-19 2003-06-19 Efficient generation of radio frequency currents
EP03733783.9A EP1518320B1 (de) 2002-06-19 2003-06-19 Effiziente erzeugung von hochfrequenzströmen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0201908A SE524408C2 (sv) 2002-06-19 2002-06-19 Effektiv generering av radiofrekventa strömmar

Publications (3)

Publication Number Publication Date
SE0201908D0 SE0201908D0 (sv) 2002-06-19
SE0201908L SE0201908L (sv) 2003-12-20
SE524408C2 true SE524408C2 (sv) 2004-08-03

Family

ID=20288267

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0201908A SE524408C2 (sv) 2002-06-19 2002-06-19 Effektiv generering av radiofrekventa strömmar

Country Status (5)

Country Link
US (1) US7274255B2 (de)
EP (1) EP1518320B1 (de)
AU (1) AU2003239069A1 (de)
SE (1) SE524408C2 (de)
WO (1) WO2004001958A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7548733B2 (en) * 2005-03-31 2009-06-16 Broadcom Corporation Wireless transmitter having multiple power amplifier drivers (PADs) that are selectively biased to provide substantially linear magnitude and phase responses
US7831221B2 (en) 2005-12-13 2010-11-09 Andrew Llc Predistortion system and amplifier for addressing group delay modulation
US7535297B2 (en) * 2006-02-27 2009-05-19 Xinghao Chen Architecture and method for improving efficiency of a class-A power amplifier by dynamically scaling biasing current thereof as well as synchronously compensating gain thereof in order to maintain overall constant gain of the class-A power amplifier at all biasing configurations thereof
JP4283294B2 (ja) * 2006-09-20 2009-06-24 株式会社日立国際電気 ドハティ増幅器
US8275071B2 (en) 2007-05-17 2012-09-25 Harris Stratex Networks Operating Corporation Compact dual receiver architecture for point to point radio
US7782765B2 (en) * 2007-01-22 2010-08-24 Harris Stratex Networks Operating Corporation Distributed protection switching architecture for point-to-point microwave radio systems
US8095088B2 (en) 2007-05-17 2012-01-10 Harris Stratex Networks Operating Corporation Compact wide dynamic range transmitter for point to point radio
US8395256B2 (en) * 2007-02-02 2013-03-12 Harris Stratex Networks Operating Corporation Packaging for low-cost, high-performance microwave and millimeter wave modules
US8779851B2 (en) * 2012-05-15 2014-07-15 Integrated Device Technology, Inc. Linearizing a power amplifier
EP2670047A1 (de) 2012-06-01 2013-12-04 Sequans Communications HF-Kommunikationen
US11616295B2 (en) 2019-03-12 2023-03-28 Epirus, Inc. Systems and methods for adaptive generation of high power electromagnetic radiation and their applications
US11211703B2 (en) 2019-03-12 2021-12-28 Epirus, Inc. Systems and methods for dynamic biasing of microwave amplifier
US11658410B2 (en) 2019-03-12 2023-05-23 Epirus, Inc. Apparatus and method for synchronizing power circuits with coherent RF signals to form a steered composite RF signal
US11469722B2 (en) 2020-06-22 2022-10-11 Epirus, Inc. Systems and methods for modular power amplifiers
US12068618B2 (en) 2021-07-01 2024-08-20 Epirus, Inc. Systems and methods for compact directed energy systems
US12381523B2 (en) * 2020-06-22 2025-08-05 Epirus, Inc. Systems and methods for radio frequency power systems
US12003223B2 (en) 2020-06-22 2024-06-04 Epirus, Inc. Systems and methods for modular power amplifiers
US12273075B2 (en) 2021-07-01 2025-04-08 Epirus, Inc. Systems and methods for power distribution for amplifier arrays
CN115603815A (zh) * 2021-07-07 2023-01-13 富士通株式会社（Jp） 失真器系数更新装置、方法和数字预失真装置
US12431983B2 (en) 2021-09-14 2025-09-30 Infinera Corporation Perturbative-based nonlinear compensation for digital subcarrier systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5923215A (en) * 1996-06-13 1999-07-13 The Whitaker Corporation Linearized amplifier
US5757229A (en) * 1996-06-28 1998-05-26 Motorola, Inc. Bias circuit for a power amplifier
US5808511A (en) * 1996-08-09 1998-09-15 Trw Inc. Active feedback pre-distortion linearization
US6028477A (en) * 1998-04-08 2000-02-22 Powerwave Technologies, Inc. Adaptive biasing in a power amplifier
US6130579A (en) * 1999-03-29 2000-10-10 Rf Micro Devices, Inc. Feed-forward biasing for RF amplifiers
US6427067B1 (en) 1999-06-10 2002-07-30 The Whitaker Corporation Detector driven bias circuit for power transistors
JP2001352219A (ja) * 2000-06-08 2001-12-21 Sony Corp 非線形歪補償装置
US6445247B1 (en) * 2001-06-01 2002-09-03 Qualcomm Incorporated Self-controlled high efficiency power amplifier
US6600369B2 (en) * 2001-12-07 2003-07-29 Motorola, Inc. Wideband linear amplifier with predistortion error correction

Also Published As

Publication number Publication date
US20060049870A1 (en) 2006-03-09
EP1518320A1 (de) 2005-03-30
WO2004001958A1 (en) 2003-12-31
US7274255B2 (en) 2007-09-25
EP1518320B1 (de) 2016-06-08
AU2003239069A1 (en) 2004-01-06
SE0201908L (sv) 2003-12-20
SE0201908D0 (sv) 2002-06-19

Similar Documents

Publication Publication Date Title
SE524408C2 (sv) Effektiv generering av radiofrekventa strömmar
US11418155B2 (en) Digital hybrid mode power amplifier system
US5420536A (en) Linearized power amplifier
JP4467756B2 (ja) ドハティ型増幅器
CN101720528B (zh) 数字混合模式功率放大器系统
EP1262018B1 (de) Leistungsmodulator mit hohem wirkungsgrad
CA2557334C (en) Digital predistortion system and method for high efficiency transmitters
US9379745B2 (en) Multi-band wide band power amplifier digital predistortion system
US6043707A (en) Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier
US6072364A (en) Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains
US7106806B1 (en) Reducing distortion of signals
EP2230759B1 (de) Verstärkervorrichtung und Übertragungsvorrichtung
CN100492888C (zh) 用于具有低峰均比的相位调制信号的前置补偿器
US20150084700A1 (en) Systems and Methods of RF Power Transmission, Modulation and Amplification
EP2521261A1 (de) Verbessertes digitales Breitbandinjektionsvorverzerrungssystem und Verfahren
US20140179248A1 (en) High efficiency linearization power amplifier for wireless communication
US20050111574A1 (en) Transmission device with digital predistortion, and method for regulating predistortion in a transmission device
CN102948071A (zh) 调制不可知的数字混合模式功率放大器系统及方法
US7755425B2 (en) Method and apparatus for reducing frequency memory effects in RF power amplifiers
JP5049562B2 (ja) 電力増幅器
US7319362B2 (en) Power amplifying apparatus
KR20050083865A (ko) 광대역 프리디스토션 선형화 방법 및 시스템
HK1224439A1 (zh) 数字预失真系统和用於放大信号的方法