Broadband right-angle transition from substrate-integrated waveguide to rectangular waveguide

Teng Li; Wenbin Dou

Broadband right-angle transition from substrate-integrated waveguide to rectangular waveguide

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Author(s): Teng Li ¹ and Wenbin Dou ¹
- Affiliations: 1: State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
Source: Volume 50, Issue 19, 11 September 2014, p. 1355 – 1356
DOI: 10.1049/el.2014.1577 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 30/04/2014, Published 01/09/2014

A broadband right-angle transition from a substrate-integrated waveguide (SIW) to a rectangular waveguide (RWG) is proposed. A coupling aperture etched on the broad wall of the SIW and two stepped ridges embedded in the RWG flange are designed for good matching between both waveguides. A Ka-band prototype is designed and fabricated. Good agreement between the measured and simulated results is obtained. The measured results show an insertion loss <0.55 dB and a return loss below −15 dB from 31.3 to 38.35 GHz. This broadband transition may be used in microwave and millimetre-wave circuits and systems.

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Broadband right-angle transition from substrate-integrated waveguide to rectangular waveguide

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