Transverse slot with control of amplitude and phase for travelling-wave SIW antenna arrays

Journal article (2020)

Authors

Tomas Mikulasek Brno University of Technology
Jaroslav Lacik Brno University of Technology
Holger Arthaber Technische Universität Wien
Copyright: © 2020 Tomas Mikulasek, J. Puskely, Alexander Yarovoy, Jaroslav Lacik, Holger Arthaber
DOI: https://doi.org/10.1049/iet-map.2020.0069
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Published Date

2020

Language

English

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Abstract

A novel basic antenna element for travelling-wave substrate integrated waveguide (SIW) arrays is proposed in this study. The antenna element is based on a transverse slot and newly complemented by a pair of vias used for matching and a phase shifter. By changing the geometries of the slot and the phase shifter, the amplitude and phase of a radiated wave can be controlled. The proposed approach extends the potential of transverse slots in SIW-based travelling-wave antenna arrays. To verify the capabilities of the antenna element, the authors demonstrate a six-element array with −30 dB side-lobe suppression, intended for a 24 GHz radar system. The measured results show good agreement with simulations.

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