An enhanced Ka-band reflector focal-plane array using a multi-feed EBG structure" - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue IEEE Antennas and Wireless Propagation Letters Année : 2010

An enhanced Ka-band reflector focal-plane array using a multi-feed EBG structure"

Hassan Chreim
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OSA
Marc Thevenot
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Umair Naeem
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Stéphane Bila
Thierry Monédière
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Yann Cailloce
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Résumé

This letter presents a first step toward the design of an enhanced multifeed EBG structure that serves as a focal-plane array for a Ka-band reflector for space applications in the 29.5-30-GHz band. The desired Earth coverage is the starting point for the antenna design. As shown in this letter, significant coupling can deteriorate the performance of the multifeed EBG antenna. In order to demonstrate this, the results are compared to those of the single-feed reflector antenna. Filters are then connected to the multifeed antenna ports to control the coupling in a constructive way and obtain good radiation characteristics. Finally, the global feed architecture (EBG structure + filters) is used to illuminate a reflector antenna in order to characterize the antenna performance (C/I ratio, EoC gain).
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Dates et versions

hal-00587533 , version 1 (20-04-2011)

Identifiants

Citer

Hassan Chreim, Régis Chantalat, Marc Thevenot, Umair Naeem, Stéphane Bila, et al.. An enhanced Ka-band reflector focal-plane array using a multi-feed EBG structure". IEEE Antennas and Wireless Propagation Letters, 2010, 9, pp.1152-1156. ⟨10.1109/LAWP.2010.2096796⟩. ⟨hal-00587533⟩

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