Title :
Design of a multi-feed EBG antenna as a focal array for Ka-band space applications
Author :
Chreim, H. ; Chantalat, R. ; Arnaud, E. ; Thèvenot, M. ; Naeem, U. ; Bila, S. ; Verdeyme, S. ; Monédière, T. ; Dumon, P. ; Palacin, B. ; Diez, H. ; Pacaud, D. ; Cailloce, Y. ; Caille, G. ; de Maagt, P.
Author_Institution :
XLIM, Univ. of Limoges, Limoges, France
Abstract :
This paper is dedicated to the design of a multi-feed matched EBG antenna, providing overlapped beams, as a reflector focal array for Ka-band space applications. The architecture must ensure the coverage of Europe through 40 spots "Agora mission proposed by CNES" with a 4x reuse scheme (2 linear polarizations and 2 frequency channels). As a first step, the EBG antenna will be studied in mono-feed configuration. Then, the simulation of the multi-feed EBG antenna will show us its suffering from the mutual coupling between feeds which disturbs the radiation. Once the S-parameters of the multi-feed antenna are extracted, suited filters will be connected to the antenna in order to isolate channels and reconstruct the radiation. Finally, the whole system (EBG antenna illuminating a reflector) will be studied in order to characterize the coverage.
Keywords :
Antenna arrays; Apertures; Feeds; Filters; Frequency; Iris; Metamaterials; Periodic structures; Polarization; Reflector antennas;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
