Design and Measurements of A Tapered Slot Antenna Array with Suspended Stripline Probe Feed

This paper presents a novel cavity-backed tapered slot antenna array with suspended stripline probe feed. This antenna is composed of the tapered slot, the top/bottom layer of the suspended stripline, the dielectric substrate, and they can be easily assembled and disassembled by screwing all component for maintenance and upgrade purposes. Since the signal line on the substrate is close to the sidewall inside the suspended stripline, the reaction between them can make the cavity shallow. In this paper, the design and measurement results of the proposed antenna are presented. The bandwidth of the array is over 50% with active VSWR <; 3, which is reasonably good performance considering its small size.