Design of high-efficiency broadband power amplifier based on split-ring resonator input matching network

被引：0
作者：
Song, Yu [1 ]
Liu, Guohua [1 ,2 ]
Cheng, Zhiqun [1 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Elect & Informat Engn, Hangzhou, Peoples R China
[2] Hangzhou Dianzi Univ, Sch Elect & Informat Engn, Hangzhou 310018, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2024年 / 66卷 / 01期
关键词：
broadband; high-efficiency; input matching network; power amplifier; split-ring resonator;
D O I：
10.1002/mop.33917
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, a novel design method of split-ring resonator (SRR) as the input matching network (IMN) of power amplifier (PA) is proposed. Compared with conventional microstrip lines, SRR is capable of providing necessary harmonic short-circuit while achieving broadband impedance matching. Applying the even-odd-mode theory, the impedance transformation characteristics of SRR are analyzed and show SRR can perform accurate impedance matching. To verify the proposed method, a PA is designed and implemented, the input impedance of 10-W GaN transistor is well matched to the source impedance by the SRR IMN in the operation band of 1.0-3.0 GHz. The measurement results show that the maximum drain efficiency of PA can reach 79.5% with 41.8 dBm of average output power in the operation band.
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页数：7
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