Optimization design of fragment-type filtering matching network for continuous inverse class-F power amplifier

IEICE Electronics Express

article

Jing Xia¹  Chengxi Bian¹  Wa Kong¹  Yongpeng Zhu¹  Wence Zhang¹  Ruijia Liu³  Ziming Zhao³  Xiaowei Zhu³ 

[1] School of Computer Science and Communication Engineering, Jiangsu University;Jiangsu Key Laboratory of Security Technology for Industrial Cyberspace, Jiangsu University;State Key Laboratory of Millimeter-Wave, Southeast University

关键词: continuous class-F-1;    fragment-type;    broadband;    filtering matching network;    power amplifier;   

DOI  :  10.1587/elex.19.20220043

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

This paper proposes a filtering matching network optimization design method using the fragment-type structure for continuous inverse class-F (CCF-1) power amplifier (PA). Different from the conventional microstrip matching structure, the fragment-type structure is used to increase the flexibility of optimization for a sharp roll-off at the second harmonic band. By using a multi-objective evolutionary algorithm, a filtering output matching network (OMN) with the fast transition between the passband and stopband is designed and optimized. For verification, a 1.5-3GHz broadband CCF-1 PA is designed, simulated and measured. Simulated results show that, compared with conventional Chebyshev filtering OMN design, the operational bandwidth of the proposed design can be expanded by about 15%. Experimental results show that measured efficiency of 65%-77% with a corresponding output power of 40.2-42.2dBm over a fractional bandwidth of 66.7% can be achieved.

【 授权许可】

CC BY