Compact Elongated Mushroom (EM)-EBG Structure for Enhancement of Patch Antenna Array Performances

被引：87

作者：

Coulombe, Martin ^{[1
]}

Koodiani, Sadegh Farzaneh ^{[1
]}

Caloz, Christophe ^{[1
]}

机构：

[1] Ecole Polytech, Poly Grames Res Ctr, Ctr Rech Elect Radiofrequence CREER, Montreal, PQ H3T 1J4, Canada

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 04期

关键词：

Antennas arrays; array processing; direction of arrival (DOA); electromagnetic band-gap (EBG) structures; microstrip patch antennas; mutual coupling; side-lobe level (SLL); PHASED-ARRAY; MICROSTRIP PATCHES; SCAN BLINDNESS; EBG STRUCTURE; IMPEDANCE; DESIGN;

D O I：

10.1109/TAP.2010.2041152

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 compact elongated mushroom electromagnetic band-gap (EM-EBG) structure, exploiting the thickness of the substrate to achieve higher isolation compared to the case of the conventional mushroom EBG (CM-EBG), is proposed for the enhancement of the performances of patch antenna arrays. Guidelines, based on fairly accurate formulas, are provided for the design of the stop-band of the structure. The compactness of the EM-EBG is investigated and shown to be superior to that of the CM-EBG in practical cases. The superior reduction of mutual coupling of the EM-EBG is demonstrated by full-wave and experimental results both for a pair of patches and for a 4-element patch array. Finally, the benefits of the EM-EBG in terms of array processing, specifically side-lobe level (SLL) control and direction of arrival (DOA) estimation, are presented.

引用

页码：1076 / 1086

页数：11

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