Application of Ultra-Compact Single Negative Waveguide Metamaterials for a Low Mutual Coupling Patch Antenna Array Design

被引：11

作者：

Cai Tong ^{[1
]}

Wang Guang-Ming ^{[1
]}

Liang Jian-Gang ^{[1
]}

Zhuang Ya-Qiang ^{[1
]}

机构：

[1] Air Force Engn Univ, Air & Missile Defend Coll, Xian 710051, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2014年 / 31卷 / 08期

基金：

中国国家自然科学基金;

关键词：

REDUCTION; ELEMENTS;

D O I：

10.1088/0256-307X/31/8/084101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A novel ultra-compact single-negative waveguide metamaterial (WG-MTM) based on a complementary anti-parallel-spiral line (CAPAL) is proposed and investigated by circuit model analysis, electromagnetic simulation and extraction of the effective parameters. The cell is ultra-compact with dimensions of lambda(0)/22.08x lambda(0)/22.08, which advances a step further toward homogenized concept. Two band-gaps attributing to the negative permeability and negative permittivity appear when the CAPAL-WG-MTM cells response to the time-varying perpendicular E-field and parallel H-field, and thus a high decoupling efficiency is obtained. Mutual coupling reduction of about 8.27 dB is realized by inserting 7 x 1 CAPSL-WG-MTM cells between two closely placed antenna elements with an edge-to-edge separation of only lambda(0)/19.23. Moreover, the radiation characteristics are improved for both the patch element and the antenna array. A higher front-to-back ratio is obtained for the patch element and an increase of 0.64 dB for the gain of the antenna array by using the CAPAL-WG-MTM structure.

引用

页数：5

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