Directive photonic-bandgap antennas

Author

Thèvenot, Marc ; Cheype, Cyril ; Reineix, Alain ; Jecko, Bernard

Author_Institution

Fac. des Sci., CNRS, Limoges, France

Volume

47

Issue

11

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

2115

Lastpage

2122

Abstract

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

Keywords

antenna theory; directive antennas; finite difference time-domain analysis; microstrip antennas; microwave photonics; photonic band gap; reflector antennas; defect PBG material mode; dielectric parabolic layers; directive photonic-bandgap antennas; finite-difference time-domain method; frequency gap; patch antenna; photonic bandgap material applications; photonic parabolic reflector; Antenna measurements; Dielectric materials; Dielectric measurements; Directive antennas; Electromagnetic scattering; Finite difference methods; Frequency; Photonic band gap; Reflector antennas; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.798007

Filename

798007