A Switchable Biomimetic Antenna Array

Biomimetic antenna arrays inspired by the fly Ormia ochracea showed a promising improvement of angle estimation capabilities radar sensors. So far, there is usually loss output power associated with this decreasing detectability weak targets. In paper, an electronically switchable two-element biomimetic array presented for first time. This provides possibility to switch between mode enhanced phase sensitivity and conventional better SNR. Circuit requirements are discussed, design process described, realization in 77-GHz range using PIN diodes as switching elements presented. Radar measurements verify concept. By switching, realized can be factor 3 relative maximum 14 dB.