A New Agile Radiating System Called Electromagnetic Band Gap Matrix Antenna

Abstract

Civil and military applications are increasingly in need for agile antenna devices which respond to wireless telecommunications, radars, and electronic warfare requirements. The objective of this paper is to design a new agile antenna system called electromagnetic band gap (EBG) matrix. The working principle of this antenna is based on the radiating aperture theory and constitutes the subject of an accepted CNRS patent. In order to highlight the interest and the originality of this antenna, we present a comparison between it and a classical patch array only for the (one-dimensional) 1D configuration by using a rigorous full wave simulation (CST Microwave software). In addition, EBG matrix antenna can be controlled by specific synthesis algorithms. These algorithms use inside their; optimization loop an analysis procedure to evaluate the radiation pattern. The analysis procedure is described and validated at the end of this paper.

ARMA feeding techniques for isoflux coverage from a micro satellite

“…Brief comparison of AESA and ARMA principles is found in [3]. ARMA approach uses jointed pixels as shown in Figure 1 to sample the radiating surfaces instead a lot of punctual sources for the array technique [4].…”

“…ARMA approach uses jointed pixels as shown in Figure 1 to sample the radiating surfaces instead a lot of punctual sources for the array technique [4]. Each pixel generates a uniform radiating surface that never overlaps outside its dimensions [3]. The most important point in ARMA approach is to be able to design a pixel which can generate a uniform EM field on its surface.…”

“…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.…”

Scan Performance and Reconfigurability of Agile Radiating Matrix Antenna Prototype

“…The proposed approach working principle constitutes the subject of an accepted CNRS (Centre National de la Recherche Scientifique) patent [6]. Accordingly, an intensive theoretical study and variant numerical validations have been published in [7], which compare the proposed radiating system to a classical antenna array. The theoretical performances comparison showed great performances in terms of low mutual coupling, better radiating surface efficiency, and efficient electronic beam steering for high scanning angles.…”

“…The whole radiating surface (characterized by electric ( ) and magnetic ( ) fields distribution) yields, according to the equivalent radiating surface theory, the corresponding radiation pattern. All details can be found in [7].…”