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Title: A broad-band dual-polarized microstrip patch antenna with aperture coupling
Authors: Gao, S. 
Li, L.W. 
Leong, M.S. 
Yeo, T.S. 
Keywords: Bandwidth
Microstrip antenna
Issue Date: Apr-2003
Citation: Gao, S., Li, L.W., Leong, M.S., Yeo, T.S. (2003-04). A broad-band dual-polarized microstrip patch antenna with aperture coupling. IEEE Transactions on Antennas and Propagation 51 (4) : 898-900. ScholarBank@NUS Repository.
Abstract: In this communication, a dual-polarized aperture-coupled microstrip patch antenna with a broad-bandwidth high-isolation low cross-polarization levels, and low-backward radiation levels is designed and its features are presented. For broad bandwidth and easy integration with active circuits, it uses the aperture-coupled stacked patches. The corner feeding of square microstrip patches is applied and the coupling aperture is the H-shaped aperture. The theoretical analysis is based on the finite-difference time-domain (FDTD) method. A dual-polarized antenna is designed, fabricated, and measured. The measured return loss exhibits an impedance bandwidth of over 24.4% and the isolation is better than 30 dB over the bandwidth. 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 for S parameters and radiation patterns are presented and discussed.
Source Title: IEEE Transactions on Antennas and Propagation
ISSN: 0018926X
DOI: 10.1109/TAP.2003.811080
Appears in Collections:Staff Publications

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