Cutoff wavelengths of metallic waveguides with elliptical cross section

Author

Tsogkas, Georgios D. ; Roumeliotis, John A. ; Savaidis, Stylianos P.

Author_Institution

Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece

fYear

2009

fDate

9-11 Nov. 2009

Firstpage

1

Lastpage

5

Abstract

The cutoff wavelengths Â¿_cmn of metallic waveguides with elliptical cross section are determined analytically. Two alternative methods, namely, a field and a shape perturbation method are used in the proposed analysis. Exact, closed form expressions, free of Mathieu as well as of Bessel functions, are obtained for the cutoff wavelengths, when the solution is specialized to small values of the eccentricity of the elliptical cross section. Numerical results for all types of modes are also included.

Keywords

waveguide theory; cutoff wavelengths; elliptical cross section; metallic waveguides; shape perturbation method; Closed-form solution; Educational technology; Electromagnetic propagation; Electromagnetic waveguides; Feeds; Particle beams; Perturbation methods; Radar cross section; Shape; Wave functions; Analytical; closed form expressions; cutoff wavelengths; elliptical metallic waveguides;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwaves, Communications, Antennas and Electronics Systems, 2009. COMCAS 2009. IEEE International Conference on

Conference_Location

Tel Aviv

Print_ISBN

978-1-4244-3985-0

Type

conf

DOI

10.1109/COMCAS.2009.5386074

Filename

5386074