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Adaptively linearised MMIC power amplifier for W-CDMA applications

Adaptively linearised MMIC power amplifier for W-CDMA applications

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  • Author(s): Y.S. Noh 1 ; I.B. Yom 1 ; J.H. Park 1 ; C.S. Park 2
    • View affiliations
    • Affiliations: 1: Communications Satellite RF Technology Team, Digital Broadcasting Research Division, Electronics and Telecommunications Research Institute, Yusong, Korea
      2: School of Engineering, Information and Communications University, Yusong, Korea
  • Source: Volume 40, Issue 20, 30 September 2004, p. 1237 – 1238
    DOI:  10.1049/el:20046323 , Print ISSN 0013-5194, Online ISSN 1350-911X
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A high-linearity and high-efficiency MMIC power amplifier is proposed that adopts a new on-chip adaptive bias circuit, which simultaneously improves efficiency at the low output power level and linearity at the high output power level. The intelligent W-CDMA power amplifier using the adaptive bias circuit extends the maximum linear output power of 0.6 dB and exhibits an improvement of average power usage efficiency of 1.85 times.

Inspec keywords: code division multiple access; MMIC power amplifiers

Other keywords: CDMA applications; on chip adaptive bias circuit; adaptively linearised MMIC power amplifier; power usage efficiency

Subjects: Microwave integrated circuits; Amplifiers; Multiple access communication

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