Analysis of cutoff frequency in trapezoid tunnel using edge element method

Author

Chuanlei, Zhang ; Ji´an, Luo ; Shanwen, Zhang ; Jiping, Sun

Author_Institution

Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada

Volume

2

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

4

Abstract

The effect of cross section dimension in trapezoid tunnel on cutoff frequency is analyzed with edge element method. The variation of cutoff frequency in trapezoid tunnel with top side, bottom side and height changes are found, respectively. It comes to a useful conclusion that the cutoff frequency of trapezoid tunnel is determined by the larger one of tunnel´s height and the average of tunnel´s top side and tunnel´s bottom side. A simple equivalent formula is given to calculate the dominant mode cutoff frequency in trapezoid waveguide. Computation results are presented to show the validity and the accuracy of the equivalent method.

Keywords

tunnels; waveguide theory; cross section dimension effect; cutoff frequency analysis; dominant mode cutoff frequency; edge element method; trapezoid tunnel; trapezoid waveguide; tunnel bottom side; tunnel height; tunnel top side; Cutoff frequency; Educational institutions; Electric fields; Electromagnetic scattering; Electromagnetic waveguides; Finite element methods; Sun; Cutoff Frequency; Edge Element Method; Equivalent Method; Trapezoid Tunnel;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230091

Filename

6230091