Title :
The design optimization of antennas in the presence of EBG AMC ground planes
Author :
Kern, D.J. ; Spence, T.G. ; Werner, Douglas H.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A design methodology is presented for the optimization of conformal antennas with electromagnetic bandgap (EBG) surfaces to improve antenna performance. The EBG surface is obtained by utilizing a frequency selective surface (FSS) on top of a thin dielectric substrate backed by a metallic ground plane, to act as an artificial magnetic conductor (AMC). The antenna is then placed above the EBG surface to create the integrated EBG conformal antenna. This research demonstrates the ability to optimize both the antenna and EBG surface simultaneously in order to achieve improved antenna performance compared to the antenna and the EBG surface optimized separately. Results are presented for a broadband EBG conformal antenna system that operates from 5.5 to 7.1 GHz with a center frequency of 6.3 GHz.
Keywords :
antenna earths; antenna theory; broadband antennas; conformal antennas; frequency selective surfaces; microwave antennas; optimisation; photonic band gap; 5.5 to 7.1 GHz; EBG AMC ground planes; antenna performance; artificial magnetic conductor; broadband antenna; design optimization; electromagnetic bandgap surfaces; frequency selective surface; integrated EBG conformal antenna; metallic ground plane; thin dielectric substrate; Broadband antennas; Conductors; Design methodology; Design optimization; Dielectric substrates; Frequency selective surfaces; Genetic algorithms; Geometry; Magnetic separation; Optical reflection;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552160
