Open Access
Transverse slot with control of amplitude and phase for travelling‐wave SIW antenna arrays
Iet Microwaves, Antennas And PropagationPeer ReviewedMikulasek Tomas +42020Journals
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 − 30dB side‐lobe suppression, intended for a 24 GHz radar system. The measured results show good agreement with simulations.

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