A new method for the design of a quasi-optical mode converter with a special reflector

Author

Yang, Shiwen ; Tan, Soon Hie ; Li, Hongfu

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

50

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

1849

Lastpage

1852

Abstract

This paper presents a new method for the design of a special reflector for quasi-optical mode converters, using the combination of vector diffraction theory and geometrical optics. The reflector is formed in a piecewise manner, according to a base reflector shape chosen previously. Each piece of reflector cell is adjusted separately. A numerical example is carried out for the quasioptical mode conversion of a circular waveguide TE₅₂ mode at 35 GHz, and the calculated results show that the output Gaussian wave beam waist radius is only less than twice the wavelength

Keywords

circular waveguides; electromagnetic wave diffraction; geometrical optics; piecewise linear techniques; waveguide components; 35 GHz; TE₅₂ mode; circular waveguide; geometrical optics; output Gaussian wave beam; piecewise formation; quasi-optical mode converter; reflector cell; reflector shape; vector diffraction theory; waist radius; Design methodology; Geometrical optics; Gyrotrons; Optical design; Optical diffraction; Optical waveguide theory; Optical waveguides; Power engineering and energy; Shape; Wavelength conversion;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.800448

Filename

1017653