WILLEBOIS , J.

Radar often operate in severe weather conditions with large temperature variations. This paper presents return loss measurements and post-processing for the evaluation of temperature sensitivity of a resistively loaded radar antenna. The antenna is placed in a drying oven for controlling the temperature. A calibration technique based on an...

Radar often operate under severe heat conditions. The objective of this paper is to evaluate the temperature sensitivity of the return loss of an active antenna. The antenna is composed of 8 elements and its active switching circuit. It is shown that the overall antenna structure is weakly dependent on the temperature within the tested range...

A wideband antenna is developed for the mine detection application in the desert via on-board radar. The wideband matching is achieved with resistively loaded Vivaldi antenna. The final 128 elements antenna is split into 16 sub-arrays of 8 elements each driven by electronic switches for SAR imaging purpose. In a first step a sub-array has been...

We have designed, made and measured a 7 m linear antenna operating between 2 and 4 GHz for land-mine detection radar application.In 20013, Chile and France signed a co-operation agreement for the promotion and development of systems that help to get rid of the mines in the desert of North-Chile. The ...

In this paper we go through design, fabrication and evaluation steps of the 7 m linear antenna operating between 2 and 4 GHz dedicated to the land-mine detection radar. It consists of 128-switched elements of loaded Vivaldi type arranged in 16 sub-arrays. We have successfully conducted preliminary tests.

A wideband antenna array is developed for the land-mine detection in the desert with an on-board radar. The final array is very large and contains 128 Vivaldi antennas. The array is split into 16 sub-arrays of 8 elements. Each Vivaldi antenna is driven independently by electronic switches for SAR imaging purpose. In a first step, a sub-array of...

wideband antenna array is developed for the land-mine detection in the desert with an on-board radar. The final array is very large and contains 128 Vivaldi antennas. The array is split into 16 sub-arrays of 8 elements. Each Vivaldi antenna is driven independently by electronic switches for SAR imaging purpose. In a first step, a sub-array of 8...