Far Field Computation of the Traveling Wave Structures and a New Approach for Suppressing the Sidelobe Levels

被引：14

作者：

Li, Zheng ^{[1
,2
]}

Wang, Junhong ^{[1
,2
]}

Zhang, Zhan ^{[1
,2
]}

Chen, Meie ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab All Opt Network & Adv Telecommun Network, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2013年 / 61卷 / 04期

关键词：

Composite right/left-handed (CRLH) transmission line; effective radiation section (ERS); sidelobe level (SLL); traveling wave; RADIATION; ANTENNAS;

D O I：

10.1109/TAP.2013.2237738

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：

The effective radiation section (ERS) proposed for studying the radiation of traveling-wave structure is further studied in this communication. The formulas for computing the radiation pattern of traveling-wave structure using the newly defined ERSs is derived. The effect of the attenuation constant on the computation of radiation pattern is discussed. A new idea for reducing the sidelobe level (SLL) of the traveling-wave structure is proposed by suppressing the emissions from the corresponding ERSs. It is found that the ERSs are not always located at the ends of the traveling-wave structure, this is quite different from the conventional viewpoint concerning the fast-and slow-wave radiations, and the reason is explained in detail. A line-source model corresponding to a 70-cell composite right/left handed (CRLH) traveling-wave structure is employed in the analysis, and the results are verified by full-wave method.

引用

页码：2308 / 2312

页数：6