Title :
Analysis of an x-shaped cavity-backed slot 2×2-element sub-array by hybrid MoM/FEM with numerical eigenmode basis functions
Author :
Tomura, Takashi ; Hirokawa, Jiro ; Hirano, Takuichi ; Ando, Makoto
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
We apply hybrid MoM/FEM to an X-shaped cavity-backed slot 2×2-element array. One entire-domain sinusoidal basis function is assumed for the magnetic current in each slot aperture. The eigenmodes of a waveguide with the cross section of the X-shaped cavity are numerically derived by FEM to calculate the reactions of the basis functions of the magnetic currents. The frequency characteristic of the reflection is shown with HFSS result and has good agreement with each other.
Keywords :
eigenvalues and eigenfunctions; finite element analysis; method of moments; slot antenna arrays; waveguides; HFSS; X-shaped cavity-backed slot 2×2-element array; frequency characteristic; hybrid MoM-FEM; magnetic current; numerical eigenmode basis function; reflection; sinusoidal basis function; slot aperture; waveguide; Apertures; Arrays; Cavity resonators; Couplings; Finite element methods; Moment methods; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348414
