Scan Performance and Reconfigurability of Agile Radiating Matrix Antenna Prototype

Abstract

This paper is dedicated to different experimental validations concerning a novel concept of beam forming and beam steering antenna. The working principle of the antenna is based on the equivalent radiating surface approach and inspired from an electromagnetic band gap antenna. The theoretical aspect and some numerical validations have been already published in the work of Abou Taam et al. (2014). Different electromagnetic behaviors have been demonstrated, such as low mutual coupling, and high gain preservation for high scanning angles values. In this paper, some of these electromagnetic behaviors will be proven experimentally by the means of two different feeding configurations.

ARMA feeding techniques for isoflux coverage from a micro satellite

“…A dual mode agile antenna based on the ARMA principle [1] [2] was presented in this paper. A prototype is under manufacturing and will be tested next month.…”

“…The beam forming procedure and the switching process between two or more working modes need to use agile beam antennas. There are two kinds of electronically agile beam antennas; the first one is the well-known AESA (Agile Electronically Scanned Array) technique and the second, a new one, called ARMA (Agile Radiating Matrix Antenna) which introduces some advantages for such applications [1], [2] as larger angles beam scanning, higher power balance, side lobes minimization [3]- [6], lower couplings between adjacent elements and high gain solutions [7], [2] with smaller number of elements and less feeding network complexity.…”

Design of a Wideband, High Steering Angle and Low Side-Lobes Levels Matrix Antenna

“…The antennas, which are commonly called pixels, are able to be used alone thanks to their wide half-power beam-width (HPBW) [22] or are placed without any air gap in an array [20]. In this configuration, the array is able to achieve high steering angle with low side lobes levels, which is of interest for a steering application [23].…”