Design of shorted parasitic rhombic array antenna for 24 GHz rear and side detection system

Abstract

A novel microstrip patch antenna is proposed for automotive application. The antenna design has been investigated through both the parametric study and the demonstration of surface currents on the antenna structure. The surface currents related to the co‐polarisation increased, and those related to the cross‐polarisation is reduced by attaching shorted parasitic element. The four types of single antenna are designed to compare of gain and cross‐polarisation level. The cross‐polarisation level of proposed antenna has been reduced by 5.9 dB compared with the rhombic antenna. The rhombic array antenna and proposed array antenna were fabricated and tested for input reflection coefficient and radiation performance. The measured and simulated results have been presented and discussed.

Folded Comb-Line Array for Backscattering-Based Bodycentric Communications in the 5G Sub-6 GHz Band

“…They can be seen as a simplified version of the Krauss' grid [13], in which the transmission lines between the top of the vertical radiating elements are removed with benefits in terms of bandwidth and cross-polarization level. Tapered radiating microstrip elements are generally adopted [14], sometimes with sequential rotation for achieving circular polarization [15], while multiple sub-array configurations can be exploited for MIMO applications [16].…”