On the design considerations of solid-state power amplifiers for satellite communications: A systems perspective

Öncü E., Tutgun R., AKTAŞ E.

International Journal of Satellite Communications and Networking, cilt.41, sa.6, ss.589-598, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 6
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1002/sat.1483
  • Dergi Adı: International Journal of Satellite Communications and Networking
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.589-598
  • Anahtar Kelimeler: efficiency, linearity, satellite communications, solid-state power amplifier
  • Hacettepe Üniversitesi Adresli: Evet

Özet

Conventional solid-state power amplifier (SSPA) design approach isolates radio frequency (RF) design from communication theory. In this paper, a unified SSPA design approach is proposed, which optimizes SSPA parameters (bias voltage and input RF signal power) to minimize total DC power consumption while satisfying received SNR constraint specified by the link budget. The effect of SSPA nonlinearity is quantified by the error vector magnitude measured at its output and the corresponding received SNR degradation is analyzed. Using the quantitative metrics for received SNR, it is possible to evaluate highly nonlinear SSPA classes such as Class-B or deep-Class AB, which are normally not considered in conventional SSPA design approach to be used in satellite communication applications.