Title :
Coupling between planar microstrip patches in an array environment
Author :
Ho, T.Q. ; Hewett, C.A. ; Hunt, L.N. ; Ready, T.G. ; Mittra, R. ; Yu, W. ; Kragalott, M. ; Zolnick, D.A.
Author_Institution :
SSCSD 282, San Diego
Abstract :
In this paper, we utilize a conformal finite difference time domain (CFDTD) code to predict the coupling between two coplanar radiators with complete feed circuits. The CFDTD has been parallelized to operate on a Linux cluster, allowing rapid simulation of large, complex problems. A wide variety of antenna configurations have been analyzed, and two representative examples are discussed herein. The first consists of circular microstrip patches operating at C-band, while the second is comprised of rectangular Ka-band patches. Numerical coupling data are compared against both measurements and theory. Input impedance characteristics are also evaluated to determine the radiation efficiency.
Keywords :
antenna feeds; antenna radiation patterns; computational electromagnetics; electromagnetic coupling; finite difference time-domain analysis; microstrip antenna arrays; microwave antenna arrays; C-band circular microstrip patches; array environment; complete feed circuits; conformal finite difference time domain code; coplanar radiators; impedance characteristics; numerical coupling; planar microstrip patches; radiation efficiency; rectangular Ka-band patches; Coupling circuits; Dielectric constant; Dielectric substrates; Feeds; Finite difference methods; Frequency; Impedance; Microstrip antenna arrays; Microstrip antennas; Transmission line theory;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
DOI :
10.1109/APS.2007.4395948
