Concurrent dual-band class-E power amplifier using composite right/left-handed transmission lines

被引：39
作者：
Ji, Seung Hun [1 ]
Cho, Choon Sik
Lee, Jae W.
Kim, Jaeheung
机构：
[1] Korea Aviat Univ, Sch Elect Telecommun & Comp Engn, Goyang 412791, South Korea
[2] Informat & Commun Univ, Taejon 200701, South Korea
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2007年 / 55卷 / 06期
关键词：
class-E power amplifier; composite right/left-handed transmission line (CRLH TL); dual band;
D O I：
10.1109/TMTT.2007.895236
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 concurrent dual-band class-E power amplifier using composite right/left-handed transmission lines (CRLH TLs) is proposed. Dual-mode operation is achieved by using the frequency offset and nonlinear phase slope of CRLH TLs for the matching network of power amplifiers. The frequency ratio of two operating frequencies is not necessarily an integer. Two operating frequencies are chosen as 836 MHz and 1.95 GHz for simulation. Three methods for designing a CRLH TL power amplifier are proposed. The measured results based on one method show that output powers of 22.4 and 22.2 dBm were obtained at 800 MHz and 1.70 GHz, respectively. In terms of maximum power-added efficiency, we obtained 42.5 % and 42.6 % at 800 MHz and 1.70 GHz, respectively.
引用
收藏
页码：1341 / 1347
页数：7
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