Title :
Full wave analysis and design of a photonic crystal substrate patch antenna
Author :
Azarinia, Hamidreza ; Tavakoli, Ahad
Author_Institution :
Electr. Eng. Dept., Amirkabir Univ. of Technol., Tehran, Iran
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 farfield 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.
Keywords :
antenna radiation patterns; finite difference time-domain analysis; microstrip antennas; photonic crystals; radiowave propagation; FDTD; PBG substrate; far-field antenna radiation patterns; full wave analysis; mode expansion analysis; photonic crystal substrate patch antenna; planar microstrip patch antennas; radiation efficiency; rectangular patch antenna; surface wave mode reduction; surface wave propagation; surface-wave losses; Antenna radiation patterns; Bandwidth; Finite difference methods; Microstrip antennas; Optical losses; Patch antennas; Periodic structures; Photonic crystals; Surface waves; Time domain analysis;
Conference_Titel :
Computational Electromagnetics and Its Applications, 2004. Proceedings. ICCEA 2004. 2004 3rd International Conference on
Print_ISBN :
0-7803-8562-4
DOI :
10.1109/ICCEA.2004.1459331
