Title :
Higher-order vector finite element-boundary integral method for cavity-backed microstrip antenna on a dispersive substrate
Author :
Yong-Ling, Ban ; Zai-ping, Nie
Author_Institution :
Sch. of Electr. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The vector finite element-boundary integral method (FE-BI) is adopted to calculate the input impedance of a cavity-backed microstrip antenna on a dispersive substrate, where higher order hexahedral basis functions are employed to expand the unknown field of the FEM functional formulation. Numerical results presented illustrate that the higher order approach performs more efficiently than the lowest order one.
Keywords :
antenna theory; boundary integral equations; computational electromagnetics; dispersive media; electric impedance; finite element analysis; microstrip antennas; substrates; vectors; FEM functional formulation; cavity-backed microstrip antenna; dispersive substrate; higher order hexahedral basis functions; higher-order vector FE-BI method; input impedance; vector finite element-boundary integral method; Apertures; Dielectric constant; Dielectric substrates; Dispersion; Finite element methods; Impedance; Integral equations; Microstrip antennas; Patch antennas; Transmission line matrix methods;
Conference_Titel :
Radio Science Conference, 2004. Proceedings. 2004 Asia-Pacific
Print_ISBN :
0-7803-8404-0
DOI :
10.1109/APRASC.2004.1422413
