Details

Autor(en) / Beteiligte

• Sun, Xiao
• Huang, Ke
• Zhu, Xu
• Shao, Huaizong
• Wang, Yong
• Chi, Pei-Ling
• Yang, Tao

Titel

A 2–10-GHz Reconfigurable GaN Power Amplifier With Average Power-Added Efficiency of 30% and Output Power of 2 W

Ist Teil von

• IEEE transactions on circuits and systems. II, Express briefs, 2023-03, Vol.70 (3), p.964-968

Ort / Verlag

New York: The Institute of Electrical and Electronics Engineers, Inc. (IEEE)

Erscheinungsjahr

2023

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• In this brief, a 2–10 GHz reconfigurable power amplifier (PA) with power-added efficiency (PAE) of 30% and output power of 2W is proposed using commercial [Formula Omitted] GaN technology. It consists of two-stage amplifier transistors with reconfigurable input, inter-stage and output matching networks. By utilizing the reconfigurable matching networks, the proposed PA circuit divides the frequency band of 2–10 GHz into three continuous sub-frequency bands, and achieves high power added efficiency and gain in each sub-frequency band. As a result, the proposed PA can simultaneously maintain high efficiency and high gain and cover multioctave bandwidth. Moreover, in order to further improve the efficiency, harmonic suppression is used in low-band with open circuit impedance at third harmonic. With these techniques, the proposed PA covers frequency band of 2–10 GHz, delivers an average PAE of 38% at 2–5 GHz, 31% at 5–7 GHz, and 31.5% at 7–10 GHz. Good agreement between simulation and measurement is obtained.