Linearity improved Doherty power amplifier using composite right/left-handed transmission lines

被引：14
|
作者：
Ji, Seung Hun [1 ]
Eun, Sang Ki [1 ]
Cho, Choon Sik [1 ]
Lee, Jae W. [1 ]
Kim, Jaeheung [2 ]
机构：
[1] Korea Aerosp Univ, Sch Elect Telecommun & Comp Engn, Goyang, South Korea
[2] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2008年 / 18卷 / 08期
关键词：
composite right/left-handed transmission line (CRLH-TL); Doherty power amplifier;
D O I：
10.1109/LMWC.2008.2001014
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：
A Doherty power amplifier using composite right/left-handed transmission lines (CRLH-TL) is proposed for linearity improvement. The lambda/4 transmission line incorporating CRLH-TL is designed to suppress the second harmonic of the output of the main amplifier. The output power of the proposed power amplifier at the fundamental frequency (2.30 GHz) shows 31.0 dBm with 13 dBm input power excited. The Doherty power amplifier using CRLH-TL improves the linearity considerably compared to that without employing CRLH-TL.
引用
收藏
页码：533 / 535
页数：3
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