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http://dx.doi.org/10.5515/KJKIEES.2008.19.8.920

Small Epsilon Negative ZOR Antenna with Improved Bandwidth  

Ko, Seung-Tae (Department of Electronic Information and Communication Engineering, Hongik University)
Park, Byung-Chul (Department of Electronic Information and Communication Engineering, Hongik University)
Park, Jae-Hyun (Department of Electronic Information and Communication Engineering, Hongik University)
Lee, Jeong-Hae (Department of Electronic Information and Communication Engineering, Hongik University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.8, 2008 , pp. 920-926 More about this Journal
Abstract
In this paper, small epsilon negative(ENG) zeroth-order resonance(ZOR) antenna with improved bandwidth is presented. To reduce the size of ENG ZOR antenna without narrowing bandwidth, large shunt inductance is introduced by adding patterns on patch and meandered via. The effective permittivity of meandered via is less dependent of frequency than that of straight via in same size. Thus, ENG ZOR antenna with meandered via has broader bandwidth. As a result, the bandwidth of ENG ZOR antenna with meandered via is 1.38 times as broad as that of spiral ENG ZOR antenna with straight via. On the other hand, the area of ENG ZOR antenna is reduced by 64 % compared with that of conventional mushroom ZOR antenna.
Keywords
Epsilon Negative(ENG); Zeroth-Order Resonance(ZOR); Meandered Via; Effective Permittivity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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