Dual-Band Continuous Class-F-1 Power Amplifier With Second-Harmonic Suppression for Harmonic Radar Systems

被引：1

作者：

Kim, Bitchan ^{[1
]}

Oh, Juntaek ^{[1
]}

机构：

[1] Soongsil Univ, Dept Intelligent Semicond, Seoul 06978, South Korea

来源：

IEEE ACCESS | 2024年 / 12卷

关键词：

Continuous inverse class-F; dual-band; high-efficiency; harmonic radar system; harmonic suppression; power amplifier; DOPPLER RADAR; MOTION;

D O I：

10.1109/ACCESS.2024.3395518

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this study, a highly efficient harmonic suppressed dual-band power amplifier (PA) for harmonic radar systems is proposed. The proposed PA incorporates a harmonic-controlled dual-band matching network (HCDMN) comprising lambda/4 open stubs at the second-harmonic frequencies and series transmission lines. The HCDMN can effectively suppress unwanted second-harmonic signals and control the fundamental and second harmonic impedances to operate in continuous class-F-1 mode at two operating frequencies. The implemented PA has dimensions of 75.3 mm x 54.9 mm. Measurement results demonstrate that the PA achieves an exceptional performance, with peak drain efficiencies (DEs) of 81.5 and 71.8 %, saturated output powers of 40.3 and 41.9 dBm, and second harmonic levels of -75.6 and -49.4 dBc at 2.3 and 3.35 GHz, respectively. Furthermore, the DEs remain above 65 % in the two frequency bands of 2.2-2.5 and 3.3-3.45 GHz.

引用

页码：62358 / 62364

页数：7