FOCUSING CHARACTERISTICS OF A METALLIC CYLINDRICAL ELECTROMAGNETIC BAND GAP STRUCTURE WITH DEFECTS
| Autor: | Halim Boutayeb, Kouroch Mahdjoubi, Anne-Claude Tarot |
|---|---|
| Přispěvatelé: | Institut d'Electronique et de Télécommunications de Rennes (IETR), Centre National de la Recherche Scientifique (CNRS)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2006 |
| Předmět: |
Electromagnetic Bandgap
Materials science Frequency band Structure (category theory) 02 engineering and technology periodic structures Radiation 01 natural sciences Line source 010309 optics Metal Optics 0103 physical sciences Vertical direction 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business.industry Finite-difference time-domain method 020206 networking & telecommunications Condensed Matter Physics [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism visual_art visual_art.visual_art_medium Cylindrical structures reconfigurable business Excitation |
| Zdroj: | Progress in Electromagnetic Research Progress in Electromagnetic Research, 2006, 66, pp. 89-103. ⟨10.2528/PIER06100504⟩ |
| ISSN: | 1559-8985 |
| DOI: | 10.2528/pier06100504 |
| Popis: | 15 pages.; International audience; The focusing characteristics of 2D-Cylindrical Electromagnetic Band Gap (CEBG) structures constituted of metallic wires and with defects are analyzed numerically for directive antennas application. The introduction of defects into the periodic structures consists of removing one or multiple wires. The simulations were carried out with a Finite Difference Time Domain (FDTD) code, where the excitation is a line source and the CEBG structure is considered infinite in the vertical direction. Numerical results showing the effects of the number of cylindrical layers and of the number of defects are presented and discussed. These results allow to determine the structures giving best focusing performance and to obtain the frequency band for directive radiation. |
| Databáze: | OpenAIRE |
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