Design of Compact Orthomode Transducers

Author

Tao, Yun ; Shen, Zhong-Xiang

Author_Institution

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

fYear

2008

fDate

14-15 Dec. 2008

Firstpage

38

Lastpage

42

Abstract

This paper presents the design of compact orthomode transducers (OMTs). Analysis methods for waveguide OMTs, including the mode-matching method and hybrid methods, are briefly reviewed. Three types of compact OMTs are described: a dielectric-filled OMT with reduced size, a planar OMT implementing using substrate integrated waveguide, and a dual band Tx/Rx OMT with a compact diaphragm to improve isolation. The dual-band Tx/Rx and SIW OMTs are verified by measurements. Challenges for designing multi-band OMTs with compact size are also pointed out.

Keywords

microwave devices; substrate integrated waveguides; transducers; compact orthomode transducers; design; dielectric-filled orthomode transducers; hybrid methods; mode-matching method; substrate integrated waveguide; Circuits; Design engineering; Dielectric substrates; Dual band; Insertion loss; Mode matching methods; Planar waveguides; Transducers; Waveguide junctions; Waveguide transitions;

fLanguage

English

Publisher

ieee

Conference_Titel

Art of Miniaturizing RF and Microwave Passive Components, 2008. IMWS 2008. IEEE MTT-S International Microwave Workshop Series on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2876-2

Electronic_ISBN

978-1-4244-2877-9

Type

conf

DOI

10.1109/IMWS.2008.4782256

Filename

4782256