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EuCap, Rome : Italie (2011)
Mutual coupling reduction between dual polarized microstrip patch antennas using compact spiral artificial magnetic conductor
Lila Mouffok 1, Lana Damaj 1, Xavier Begaud 1, Anne-Claire Lepage 1, Hubert Diez 2

Abstract--In this paper, we present a dual polarized microstrip antenna above an Artificial Magnetic Conductor (AMC). It is printed on a high permittivity substrate (εr=9.82). The AMC is used in order to reduce the mutual coupling between two radiating elements. Two experimental prototypes are realized in order to validate the analysis. First, the performances of a patch antenna above AMC are analyzed. The return loss is less than -15 dB at 1.62 GHz. The measured radiation pattern shows that the antenna has a broadside gain of 7 dB and a cross-polar level about -15 dB. Then, the mutual coupling between two antennas above AMC is studied. 3 dB enhancement of mutual coupling compared to the array without AMC is observed at the operating frequency 1.62 GHz in H plane configuration. A good agreement between measurements and simulations results is observed.
1 :  Laboratoire Traitement et Communication de l'Information [Paris] (LTCI)
Télécom ParisTech – CNRS : UMR5141
2 :  Centre National d'Etudes Spatiales (CNES)
Sciences de l'ingénieur/Electronique
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