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Dual-band, dual-mode power amplifier

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-001/38
  • H04M-001/00
출원번호 US-0094515 (1998-06-10)
발명자 / 주소
  • Boesch Ronald D.
  • Meadows Ronald C.
출원인 / 주소
  • Ericsson Inc.
대리인 / 주소
    Myers Bigel Sibley & Sajovec
인용정보 피인용 횟수 : 111  인용 특허 : 21

초록

A power amplifier circuit has a driver amplifier stage including a low band driver amplifier and a high band driver amplifier. A final amplifier stage includes a linear mode amplifier for amplifying digitally modulated signals and a saturated (nonlinear) mode amplifier for amplifying frequency modul

대표청구항

[ What is claimed is:] [1.]1. A power amplifier circuit for amplifying RF signals, said power amplifier circuit selectively operable in a linear mode or a nonlinear mode and selectively operable to amplify RF signals in a first frequency band or a second frequency band, comprising:a first driver amp

이 특허에 인용된 특허 (21)

  1. Taniyoshi Kiyoshi (Kobe JPX) Kondo Toshihiko (Kobe JPX) Takayama Kazuo (Kobe JPX), Antenna circuit for a multi-band antenna.
  2. Barlow ; Edson L., Antenna matching network.
  3. Burson Kyle L. (Somerset NJ) Chang Yum C. (Belford NJ) Fok Wilson (Aberdeen NJ) Leland Kenneth W. (Toms River NJ) Orlando Denis P. (Freehold NJ) Partyka Andrzej (Bedford NJ), Bimodal portable telephone.
  4. Orme Gordon R. (Rancho Palos Verdes CA) Gritzmacher Thomas J. (Torrance CA) Yokote Timothy A. (Torrance CA), Dual function satellite imaging and communication system using solid state mass data storage.
  5. Colvis Christopher O. (Lake Zurich IL) Schwent Dale G. (Hoffman Estates IL) Yochem Donald M. (Lake Villa IL), Dual mode amplifier network having an isolator in a digital path and a filter in an analog path.
  6. Edwards Richard C. (Cedar Rapids IA), Dual mode diplexer/multiplexer.
  7. Epperson Darrell (Wake Forest NC) Dent Paul W. (Cary NC), Dual mode power amplifier for analog and digital cellular telephones.
  8. Schwent Dale G. (Hoffman Estates IL) Osmani Rashid M. (Carol Stream IL) Cristiano Gary M. (Hoffman Estates IL), Dual mode power amplifier for radiotelephone.
  9. Heinonen Jarmo (Salo FIX) Hulkko Jaakko (Oulu FIX) Vilmi Toivo (Haukipudas FIX), Dual mode transmission system with switched linear amplifier.
  10. Meadows Ronald C., Dual-band, dual-mode power amplifier.
  11. Boesch Ronald D. ; Conroy Kevin P., Impedance matching circuit for power amplifier.
  12. Jaakola Mika,FIX, Mobile station having dual band RF detector and gain control.
  13. Stengel Robert E. (Pompano Beach FL) Olson Scott A. (Sunrise FL), Multi-mode power amplifier.
  14. Adar Aharon, Multiple-band amplifier.
  15. Koizumi Haruhiko (Osaka JPX) Sugimura Akihisa (Osaka JPX) Tateoka Kazuki (Osaka JPX) Kanazawa Kunihiko (Kyoto JPX), Power amplifier and power amplification method.
  16. Yamada Tatsuya (Tokyo JPX), Power amplifier capable of saturation and linear amplification.
  17. Kunkel L. P. (Lund SEX), Power amplifier for a cellular telephone.
  18. Suckling Charles (Rushden GBX) Collinson Glenn (Hitchin GBX), Power amplifier with harmonically trapped heterojunction bipolar transistor.
  19. Norimatsu Hidehiko (Tokyo JPX), Radio communication device capable of communication in a plurality of communication systems.
  20. Schwent Dale G. (Hoffman Estates IL) Osmani Rashid M. (Carol Stream IL) Weisshappel Robert N. (Barrington IL), Radio frequency signal power amplifier combining network.
  21. Takayama Akira (Soma JPX), Reception band switching circuit with variable attenuation control.

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  7. McGrath,Finbarr J.; Heaney,Eugene; Nagle,Pierce J.; Grebennikov,Andrei V., Apparatus, methods and articles of manufacture for multiband signal processing.
  8. King, Joel Richard, Architectures and methods related to transmit signal routing with re-use of filters.
  9. Feher, Kamilo, Automobile cellular, WLAN and satellite communications.
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  11. Gillis, John D., Balanced power amplifier for low power radio communications.
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  21. Xue, Zonglin; Wang, Linchuan; Xiong, Xiaofeng, Communication antenna, method for controlling the same and terminal.
  22. Bengtson,David; Douglas,Dale Scott, Compensating for load pull in electromagentic signal propagation using adaptive impedance matching.
  23. Hellberg,Richard L. B., Composite power amplifier.
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  32. Kim, Hyun-Wook; Kim, Young-Lak; Kim, Nam-Gun; Ihm, Jong-Tae, Dual band/dual mode mobile communication terminal and control method thereof.
  33. Wang, Xiao-Dong, Dual mode mobile terminal system.
  34. Sanders, Stuart Baker, Dual-mode communications transmitter.
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  45. Aggarwal, Sudhir; Locher, Matthias, Impedance matching circuit for a multi-band radio frequency device.
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  69. Feher,Kamilo, Multimode communication system.
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  75. Oyama, Yasushi; Tsutsui, Takayuki; Nakai, Kazuhito, Power amplification module.
  76. Kitlinski,Krzysztof; Schmid,Alfons; Kapfelsperger,Boris; Donig,G?nter, Power amplifier arrangement and method for processing a radiofrequency signal.
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