Summary
International Symposium on Antennas and Propagation
2005
Session Number:2D1
Session:
Number:2D1-3
THIN FREQUENCY SELECTIVE SURFACE (FSS) SUPERSTRATE WITH DIFFERENT PERIODICITIES FOR DUAL-BAND DIRECTIVITY ENHANCEMENT
Young Ju Lee, Dong Hyun Lee, Junho Yeo, Wee Sang Park, Raj Mittra,
pp.-
Publication Date:2005/11/3
Online ISSN:2188-5079
Summary:
In this paper, we present a novel design of a high directivity resonator antenna that utilizes a two-layered Frequency Selective Surface (FSS) superstrate with different periodicities?as an alternative to a conventional FSS superstrate?for dual band directivity enhancement to reduce its height. Two strip dipole arrays with different periodicities are placed above and below a dielectric layer. The proposed thin FSS superstrate yields 13.1 and 19.54 dBi directivity enhancements at 8.75 GHz and 12.7 GHz, respectively, as compared to that of a patch antenna (6dBi), while its height is only one half of that of a conventional patch antenna.