Single Layer Dual Circularly Polarized Series-fed Gap Waveguide Based Slot Array for 77 GHz Automotive Radar
Journal article, 2023
A series-fed single layer dual circularly polarized slot array antenna fed by stepped ridge gap waveguide is proposed at the 77 GHz band. The antenna generates dual circularly polarized waves, which shows potential to be used in next-generation polarimetric radar for automotive applications. The antenna contains 8 columns of linear arrays and two feeding ports for exciting the columns of the slots. The design process and measured results are described in this paper. The measured results show that the realized gain of the proposed antenna is above 27.3 dBi and the axial ratio is about 2 dB over the proposed 76-79 GHz with dual CP patterns. The measured S11 and S22 for the proposed antenna is below -10 dB and the measured port isolation is above 17.5 dB.
Dual circular polarization
series-fed waveguide slot array
single layer
automotive radar
ridge gap waveguide (RGW)
Author
Zhaorui Zang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Ashraf Uz Zaman
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Jian Yang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Published in
IEEE Transactions on Antennas and Propagation
0018926x (ISSN) 15582221 (eISSN)
Vol. 71 Issue 5 p. 3775-3784Categorizing
Subject Categories (SSIF 2011)
Geotechnical Engineering
Discrete Mathematics
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
DOI
10.1109/TAP.2023.3243996