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Finite difference time domain analysis of a photonic crystal substrate patch antenna
Hamidreza Azarinia and Ahad Tavakoli
Abstract
Planar microstrip patch antennas can achieve a wide range of radiation patterns. However, due to surface-wave losses, they have low bandwidth, low gain, and a potential decrease in radiation efficiency. In order to minimize the surface-wave effects, a photonic-band gap (PBG) substrate is proposed. The PBG structure significantly diminishes the surface-wave modes and thus improves the gain and far-field radiation pattern and efficiency. In this paper, using FDTD, an accurate full-wave analysis of surface-wave propagation in a rectangular microstrip patch antenna with and without PBG is presented. Finally, the antenna fabricated and result of measurement was compared with numerical simulation.

Keywords: FDTD; Microstrip antenna; Photonic-band gap materials

PACS: 02.70.B; 84.40; 42.70.Q

Thanks

لينك:
http://rapidshare.com/files/115555941/Finite_difference_time_domain.pdf.html

http://rapidshare.com/files/115559729/1.pdf.html