Design of High Impedance Electromagnetic Surfaces for Mutual Coupling Reduction in Patch Antenna Array

被引：28

作者：

Islam, Mohammad Tariqul ^{[1
]}

Alam, Md. Shahidul ^{[1
,2
]}

机构：

[1] Univ Kebangsaan Malaysia, Inst Space Sci ANGKASA, Bangi 43600, Selangor, Malaysia

[2] Univ Kebangsaan Malaysia, Dept Elect Elect & Syst Engn, Bangi 43600, Selangor, Malaysia

来源：

MATERIALS | 2013年 / 6卷 / 01期

关键词：

high impedance surfaces; meandered line; bandgap; array; mutual coupling; PLANAR EBG STRUCTURE; MICROSTRIP ANTENNA; BAND; GAIN;

D O I：

10.3390/ma6010143

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A compact planar meander-bridge high impedance electromagnetic structure (MBHIES) was designed and its bandgap characteristics, mutual coupling reduction abilities were studied and compared in detail. Several parametric analyses were performed to obtain optimized design values and the transmission responses were calculated through the suspended microstrip line and waveguide simulation methods. The achieved bandgap is 2.3 GHz (2.55-4.85 GHz) with -61 dB minimum transmission coefficient level at the center frequency of 3.6 GHz. To see the effectiveness, the proposed design was inserted between a microstrip patch antenna array which operates at 3.8 GHz and whose operating bandwidth falls within the MBHIES bandgap. The surface wave suppression phenomenon was analyzed and simulated results are verified by measuring the fabricated prototypes, both are in good agreement. The configuration reduced the mutual coupling by 20.69 dB in simulation and 19.18 dB in measurement, without affecting the radiation characteristics of the array but increasing the gain slightly.

引用

页码：143 / 155

页数：13

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