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

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6348414

Filename

6348414