Directive photonic-bandgap antennas

被引：248

作者：

Thèvenot, M ^{[1
]}

Cheype, C ^{[1
]}

Reineix, A ^{[1
]}

Jecko, B ^{[1
]}

机构：

[1] Fac Sci, IRCOM, CNRS, UMR 6615,Equipe Electromagnetisme, F-87060 Limoges, France

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1999年 / 47卷 / 11期

关键词：

antenna; defect; directivity; FDTD; parabolic reflector; photonic bandgap;

D O I：

10.1109/22.798007

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper introduces two new photonic bandgap (PBG) material applications for antennas, in which a photonic parabolic reflector is studied. It is composed of dielectric parabolic layers associated to obtain a PBG material. The frequency gap is used to reflect and focus the electromagnetic waves. This device has been designed using a finite-difference time-domain (FDTD) code. FDTD computations have provided the theoretical reflector's directivity. These results are in good agreement with measurements, and it appears that the PBG reflector presents the same directivity as a metallic parabola. A second application uses a defect PBG material mode associated with a metallic plate to increase the directivity of a patch antenna. We explain the design of such a device and propose experimental results to validate the theoretical analysis.

引用

页码：2115 / 2122

页数：8

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