Title :
Accurate and Efficient Analysis of Aperture Coupled Cylindrically Conformal Microstrip Antennas
Author_Institution :
Beijing Inst. of Technol., Beijing
Abstract :
A full wave method is proposed to analyze the characteristics of the aperture coupled cylindrically conformal microstrip antennas. The near field of the antenna is obtained through conformal FDTD method in cylindrical coordinates and then the equivalence and duality theorems combined with the modified spectral domain dyadic Green´s functions for cylindrically stratified media are used to calculate the radiation patterns. As well, a broadband antenna of this type with stacked structure is realized.
Keywords :
Green´s function methods; antenna radiation patterns; aperture-coupled antennas; broadband antennas; circular waveguides; conformal antennas; duality (mathematics); finite difference time-domain analysis; inhomogeneous media; microstrip antennas; aperture coupled cylindrically microstrip antenna; broadband antenna; conformal FDTD method; cylindrical coordinates; cylindrically stratified media; duality theorem; equivalence theorem; radiation patterns; spectral domain dyadic Green´s function; stacked structure; Antenna radiation patterns; Antenna theory; Aperture antennas; Aperture coupled antennas; Broadband antennas; Finite difference methods; Green´s function methods; Microstrip antennas; Nonhomogeneous media; Time domain analysis;
Conference_Titel :
Antennas, Propagation & EM Theory, 2006. ISAPE '06. 7th International Symposium on
Conference_Location :
Guilin
Print_ISBN :
1-4244-0162-3
Electronic_ISBN :
1-4244-0163-1
DOI :
10.1109/ISAPE.2006.353386
