High-Efficiency High-Power Wideband Power Amplifier Design With Hybrid Class AB

Cagdas E., Kizilbey O., Yazgı M.

IEEE Microwave and Wireless Technology Letters, cilt.35, sa.9, ss.1344-1347, 2025 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 9
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1109/lmwt.2025.3555003
  • Dergi Adı: IEEE Microwave and Wireless Technology Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1344-1347
  • Anahtar Kelimeler: Current conduction angle (CCA), harmonic distortion (HD), high-efficiency power amplifier (PA), wideband high-efficiency PA
  • Samsun Üniversitesi Adresli: Hayır

Özet

This letter presents a wideband (1.8-6 GHz) high efficiency Gallium Nitride (GaN) power amplifier (PA). The design of the PA employs an approach of large signal bandwidth (BW)-current conduction angle (CCA) relationship based on the harmonic distortion (HD) performance. This is a new approach and targets to obtain better efficiency while keeping increase of HD low in the BW. The fabricated PA offers power gain (Pgain) of 9.6 dB, an output power (Pout) of 37.6 dBm, a power added efficiency (PAE) ranging from 42% to 51%, and HD levels below -20 dBc throughout the 1.8-6 GHz frequency band.