Microwave radar sensor based on CRLH SIW leaky-wave antennas

Abstract

Modern methods of active defense of military vehicles are based on detection of threat missiles and their elimination by suitable active counter-measures. For these purposes, special radar detection systems are often used. The presented solution employs the SIW based leaky wave antennas which enable detection of the threat missiles in an immediate vicinity of the protected vehicle. The missiles are detected by two tilted detection planes: one main detection plane (as described in [1]), and the other, operating ahead of the main plane. Since the missiles fly through two different planes set under two different angles, system triggering can be improved and more missile parameters can be measured. The sensor structure is relatively simple and occupies merely little space on the surface of the protected vehicle. The performed tests prove functionality of the developed solution.

SIW leaky wave antennas

“…An SIW-based antenna similar in form to the antenna already published in [5] was designed for application in an antimissile radar system [14]. The advantage was the ability to steer the angle of the main radiation beam simply by changing the frequency.…”