Full-band transition from substrate integrated waveguide to rectangular waveguide

Author

Hongyeal Lee ; Sohyeun Yun ; Manseok Uhm ; Inbok Yom

Author_Institution

Satellite & Wireless Convergence Res. Dept., Electron. & Telecommun. Res. Inst., Daejeon, South Korea

Volume

51

Issue

14

fYear

2015

fDate

7 9 2015

Firstpage

1089

Lastpage

1090

Abstract

A novel substrate integrated waveguide to rectangular waveguide (RWG) transition for effective power transfer is proposed. The substrate taper is inserted into a conventional height-stepped impedance transformer of the RWG region to improve transmission loss and bandwidth. The transition is designed to cover the entire K-band (18-26 GHz), showing a return loss of 20 dB. A back-to-back transition has been fabricated to verify the proposed transition. The experimental results show good agreement with the analysis. The transmission loss of the stand-alone transition is 0.22 dB at 21.7 GHz with a usable bandwidth of 36%.

Keywords

impedance convertors; microwave circuits; rectangular waveguides; substrate integrated waveguides; waveguide transitions; K-band; RWG transition; SIW transition; frequency 18 GHz to 26 GHz; full-band transition; height-stepped impedance transformer; loss 0.22 dB; loss 20 dB; power transfer; rectangular waveguide; substrate integrated waveguide; transmission loss;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2015.0939

Filename

7150493