Design of a Broadband High-Efficiency Hybrid Class-EFJ Power Amplifier - Zhang, Zhiwei; Cheng, Zhiqun; Ke, Huajie; Liu, Guohua; Li, Sudong (IEEE microwave and wireless components letters, 2020)
Keywords: Bandwidth; Broadband; Broadband communication; class-EFJ; Harmonic analysis; high efficiency; Hybrid power systems; Impedance; power amplifier (PA); Power generation; Wireless communication