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Analysis and Design of a Cylindrical EBG based directive antenna

Abstract : In this paper, a cylindrical electromagnetic bandgap (CEBG) structure composed of infinite metallic wires is analyzed, designed and used as a model to develop a new reconfigurable directive antenna. This structure is circularly and radially periodic, and it is excited at its center using an omnidirectional source. The analysis is based on calculating the transmission and reflection coefficients of a single cylindrical frequency selective surface (FSS) and then, considering only the fundamental mode interaction, deducing the frequency response of the CEBG structure composed of multiple cylindrical FSSs. For this structure, new analytical formulas are derived, and their accuracy is assessed compared to those obtained by the finite-difference time-domain method. As in rectangularly periodic structure case, the frequency response of the CEBG structure exhibits pass-bands and bandgaps, and it is possible to obtain directive beams by introducing defects in the periodic structure. Using this concept, a new antenna was developed to obtain a controllable directive beam. An antenna prototype, without control, was designed, fabricated, and tested. An excellent agreement was obtained between theory and experiment for both return loss and radiation patterns.
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Contributor : Halim Boutayeb Connect in order to contact the contributor
Submitted on : Tuesday, February 27, 2007 - 2:48:25 PM
Last modification on : Monday, January 24, 2022 - 12:16:29 PM
Long-term archiving on: : Wednesday, April 7, 2010 - 12:53:43 AM


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Halim Boutayeb, Tayeb Denidni, Kouroch Mahdjoubi, Anne-Claude Tarot, Abdelrazik Sebak, et al.. Analysis and Design of a Cylindrical EBG based directive antenna. IEEE Transactions on Antennas and Propagation, 2006, 54, pp. 211-219. ⟨10.1109/TAP.2005.861560⟩. ⟨hal-00133701⟩



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