A parametric study using ansoft HFSS and ansoft designer on the effect of aperture diameter on the transmission properties of its array

Author

Safari, Faezeh ; Shafai, Lotfollah

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Manitoba, Winnipeg, MB

fYear

2009

fDate

15-18 Feb. 2009

Firstpage

1

Lastpage

4

Abstract

A rigorous parametric study on the effect of aperture diameter on transmission properties of an array of apertures is performed. Unit cells include centered apertures. Centered circular aperture diameter swept for a wide range and different simulations using Ansoft HFSS and Ansoft Designer is accomplished. Ansoft Designer is shown to be unable in properly treating the unit cells which have some metallic parts touching unit cell´s boundary. Using a new feature in Ansoft HFSS 11.0, TE-mode and TM - mode transmission properties of an array of centered apertures is investigated. With the unit cell having the same transverse dimensions as X-band waveguide, and sweeping aperture diameter a single resonance for TE - mode and double resonances for TM - mode is discovered, in the single-mode frequency range of X-band waveguide.

Keywords

circular waveguides; electrical engineering computing; frequency selective surfaces; rectangular waveguides; Ansoft Designer; Ansoft HFSS; TE-mode transmission; TM-mode transmission; X-band waveguide; aperture diameter; centered circular aperture diameter swept; rectangular waveguide; single-mode frequency range; unit cell; unit cell boundary; Antenna arrays; Apertures; Capacitance; Cutoff frequency; Electromagnetic waveguides; Equivalent circuits; Parametric study; Rectangular waveguides; Reflection; Resonance; Ansoft Designer; Ansoft HFSS; Array of Apertures; Periodic Structure; Rectangular Waveguide; Transmssion and Reflection Properties; Unit Cell;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting, 2009. ANTEM/URSI 2009. 13th International Symposium on

Conference_Location

Toronto, ON

Print_ISBN

978-1-4244-2979-0

Electronic_ISBN

978-1-4244-2980-6

Type

conf

DOI

10.1109/ANTEMURSI.2009.4805108

Filename

4805108