NDLI: Metallic photonic band-gap materials (MPBG) as angular selective reflector or radome: Application to antenna grating lobe reduction

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Metallic photonic band-gap materials (MPBG) as angular selective reflector or radome: Application to antenna grating lobe reduction

Content Provider	Springer Nature Link
Author	Poilasne, Gregory Pouliguen, P. Mahdjoubi, K. Desclos, Laurent Gélin, Philippe Terret, Claude
Copyright Year	2000
Abstract	This paper presents numerical and experimental results on metallic photonic band-gap materials (mpbg), composed of metallic wires and used as antenna reflector or radome. Attention is focused on mpbg angular response. In fact, with specified angular characteristics, MPBG materials can be interesting in order to reduce antenna grating lobes. One possible grating lobe reduction solution is based on the use of mpbg as angular filter. The radiation characteristics obtained with this solution are then improved by using a mpbg reflector to enhance the gain. Regarded to a classical metallic reflector, 20 dB and 12 dB gain improvement in the theoretical and in the experimental cases are respectively obtained, when the reflector is composed of more than two layers. The scanning performances are also presented. We show that angular filtering characteristics can be improved either by changing the array interface or by changing the mpbg lattice. In order to select the structure with the best angular behavior, an experimental and numerical characterization method is also presented.Cet article présente les résultats numériques et expérimentaux sur les matériaux à bande interdite photonique métallique (bipm), composés de fils et utilisés en tant que réflecteur ou radôme. L’attention est particulièrement portée sur la réponse angulaire des bipm. En effet, certains comportements angulaires peuvent se révéler très intéressant pour réduire les lobes de réseau des antennes. Une méthode consiste notamment à utiliser un bip comme filtre angulaire. Les caractéristiques de rayonnement ainsi obtenues peuvent encore être améliorées grâce à l’utilisation d’un réflecteur bip. Ceci permet notamment d’augmenter le gain par rapport au cas d’un simple réflecteur métallique. L’augmentation est respectivement de 20 dB et 12 dB théoriquement et pratiquement, quand le réflecteur est composé d’au moins deux couches. Les performances de balayage de telles structures sont aussi présentées. Les auteurs montrent qu ’un changement du type de réseau permet d’améliorer le comportement angulaire de l’antenne tout en conservant une bonne réjection des lobes de réseau.
Starting Page	207
Ending Page	215
Page Count	9
File Format	PDF
ISSN	00034347
Journal	Annales Des Télécommunications
Volume Number	55
Issue Number	5-6
e-ISSN	19589395
Language	French
Publisher	Springer-Verlag
Publisher Date	2000-01-01
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antenne réflecteur Radôme Bande interdite photonique Structure périodique Antenne réseau Lobe latéral Diagramme rayonnement Filtre angulaire Antenne balayage Communications Engineering, Networks Information Systems and Communication Service Signal, Image and Speech Processing Computer Communication Networks Information and Communication, Circuits R & D/Technology Policy
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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