Circularly Polarized Antenna Array Fed by Substrate Integrated Waveguide: Implementation Recommendations

Abstract

In the paper, we review the design of a double-layered circularly polarized antenna array consisting of orthogonal linear antenna elements fed by substrate-integrated network. The reviewed array has been simulated in CST Microwave Studio, fabricated and measured. Based on the critical evaluation of obtained results, practical recommendations for the implementation of the numerical model and fabrication of the prototype of the antenna array have been compiled. Such a practical guide to the design of SIW-based millimeter-wave antenna arrays has not been published in the open literature yet.