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A wideband right-angle transition between thin substrate integrated waveguide and rectangular waveguide based on multi-section structure

Published online by Cambridge University Press:  27 February 2015

Teng Li  and
Wenbin Dou
Teng Li*
Affiliation:
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China. Phone: +86 025 83794022
Wenbin Dou
Affiliation:
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China. Phone: +86 025 83794022
*
Corresponding author:T. Li Email: liteng.nj@gmail.com
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Abstract

In this paper, a novel wideband right-angle transition between thin substrate integrated waveguide (SIW) and rectangular waveguide (RWG) based on multi-section structure operating at center frequency 31.5 GHz is presented. A multi-section SIW with a rectangular aperture etched on the broad wall and two stepped ridges embedded in the RWG flange are introduced to obtain a wide impedance matching. The simulations show that the bandwidth with return loss better than 20 dB is about 17 GHz. In order to verify our designs, two back-to-back transitions with different lengths are fabricated and measured. The experimental results agree well with simulations. The proposed component shows an insertion loss less than 0.44 dB and a return loss better than 14.5 dB over 12.15 GH, which corresponds to 38.57% bandwidth.

Keywords

Passive components and circuitsModelingsimulation and characterizations of devices and circuits
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 2 , March 2016 , pp. 185 - 191
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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