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High-Gain Array Antenna Based on Composite Right/Left-Handed Transmission Line

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Author(s): Ningli Zhu | Quanyuan Feng | Zhi-Ang Wu

Journal: International Journal of Communications, Network and System Sciences
ISSN 1913-3715

Volume: 04;
Issue: 11;
Start page: 696;
Date: 2011;
Original page

Keywords: Composite Right/Left-Handed Crlh | Array Structure | High-Gain

ABSTRACT
In this paper a metamaterial-inspired antenna with high gain and good directivity is designed. Based on the concept of composite right/left-handed transmission line (CRLH-TL), the proposed antenna is realized based on three leakage wave unit cell and a left handed circular ring slot incorporated on the surface. The maximum achievable gain at the resonant frequency of 5.6GHz is 6.933 dBi, and the return loss at 5.6 GHz can be –20 db. This proposed design has a simple structure and a compact dimension of 35 mm*40 mm*1 mm, which is suitable for particular wireless communication application such as WiFi and WLAN.
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