Open AccessTransverse slot with control of amplitude and phase for travelling‐wave SIW antenna arrays
Author(s) -
Mikulasek Tomas,
Puskely Jan,
Yarovoy Alexander G.,
Lacik Jaroslav,
Arthaber Holger
Publication year - 2020
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2020.0069
Subject(s) - phase shift module , antenna (radio) , transverse plane , slot antenna , phase (matter) , amplitude , acoustics , optics , waveguide , physics , engineering , electronic engineering , directional antenna , electrical engineering , insertion loss , structural engineering , quantum mechanics
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.