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Title: Wide-band microstrip antenna with an H-shaped coupling aperture
Authors: Gao, S.-C. 
Li, L.-W. 
Leong, M.-S. 
Yeo, T.-S. 
Keywords: Bandwidth
Microstrip antenna
Issue Date: Jan-2002
Citation: Gao, S.-C., Li, L.-W., Leong, M.-S., Yeo, T.-S. (2002-01). Wide-band microstrip antenna with an H-shaped coupling aperture. IEEE Transactions on Vehicular Technology 51 (1) : 17-27. ScholarBank@NUS Repository.
Abstract: Theoretical and experimental results of a wide-band planar antenna are presented. This antenna can achieve a wide bandwidth, low cross-polarization levels, and low backward radiation levels. For wide bandwidth and easy integration with active circuits, it uses aperture-coupled stacked square patches. The coupling aperture is an H-shaped aperture. Based on the finite difference time-domain method, a parametric study of the input impedance of the antenna is presented, and effects of each parameter on the antenna impedance are illustrated. One antenna is also designed, fabricated, and measured. The measured return loss exhibits an impedance bandwidth of 21.7%. The cross-polarization levels in both E and H planes are better than -23 dB. The front-to-back ratio of the antenna radiation pattern is better than 22 dB. Both theoretical and experimental results of S parameters and radiation patterns are presented and discussed.
Source Title: IEEE Transactions on Vehicular Technology
ISSN: 00189545
DOI: 10.1109/25.992064
Appears in Collections:Staff Publications

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