A planar resonator antenna based on a woodpile EBG material

被引：158

作者：

Weily, AR ^{[1
]}

Horvath, L

Esselle, KP

Sanders, BC

Bird, TS

机构：

[1] Macquarie Univ, Dept Elect, Sydney, NSW 2109, Australia

[2] Macquarie Univ, Dept Phys, Sydney, NSW 2109, Australia

[3] Macquarie Univ, Quantum Comp Technol, Sydney, NSW 2109, Australia

[4] Univ Calgary, Inst Quantum Informat Sci, Calgary, AB T2N 1N4, Canada

[5] CSIRO, ICT Ctr, Epping, NSW 1710, Australia

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2005年 / 53卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

electromagnetic bandgap (EBG) material; finite-difference time-domain (FDTD); high gain antenna; resonator antenna; three dimensional (3-D) photonic crystal;

D O I：

10.1109/TAP.2004.840531

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：

A resonator antenna made from a complex artificial surface and a metallic ground plane is described. The complex surface is realized using a woodpile electromagnetic bandgap (EBG) material, which is shown to have a frequency dependent reflection plane location. A highly directive radiation pattern is created due to the angle-dependent attenuation of the resonator antenna coupling to free space. The antenna has the advantages of low height, low loss, and low sidelobes. It is shown that the directivity can be varied over a fixed range by changing the aperture size of the device, with the maximum directivity determined by both the feed element and EBG material properties. The complete bandgap for the woodpile EBG material is confirmed from a band diagram, and its properties as a complex surface are investigated through transmission calculation and measurement. The design of the antenna is described, and two means of exciting the resonator, a microstrip patch and a double slot, are investigated. Theoretical results for these two antennas are calculated the using finite-difference time-domain and are shown to be in good agreement with measured results.

引用

页码：216 / 223

页数：8

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