Metamaterial filters with attenuation poles in the pass band for ultra wide band applications

被引：10
作者：
Gil, Marta [1 ]
Bonache, Jordi [1 ]
Martin, Ferran [1 ]
机构：
[1] Univ Autonoma Barcelona, Dept Elect Engn, CIMITEC, E-08193 Barcelona, Spain
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2007年 / 49卷 / 12期
关键词：
metamaterials; complementary split rings resonators (CSRRs); composite right/left handed (CRLH) lines; microwave filters; ultra wide band (UWB);
D O I：
10.1002/mop.22901
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：
Ill this work, a composite right/left handed (CRLH) transmission line implemented by means ( of complementary split rings resonators (CSRRS) and interdigital capacitors is designed to provide a transmission band useful for ultra wide, band (UWB) applications, i.e., ill the interval 3.1-10.6 GHz. This huge bandwidth is obtained by balancing the line, namely by merging the left handed (LH) and right handed (RH) bands typical of these structures. The result is a single and broad transmission band, which exhibits a sharp cut-off at the lower edge due to the presence ( fa transmission zero. Ill these UWB band pass filters, an attenuation pole within the band may be of interest for the elimination of possible interfering signals. It is demonstrated that such attenuation poles call be introduced by adding properly designed spiral resonators (SRs) at both sides of the host line oil the top layer of the design. The fabricated device is small (area A = 0. 66 cm(2)) and exhibits reasonable performance. This work contributes to demonstrate the potentiality of transmission line metamaterials for the design of microwave components in planar technology. (C) 2007 Wiley Periodicals. Inc.
引用
收藏
页码：2909 / 2913
页数：5
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