Investigations of AMC and its applications for performance enhancement of planar antenna arrays

2013 IEEE International Workshop on Electromagnetics, Applications and Student Innovation Competition Pub Date : 2013-08-01 DOI:10.1109/IWEM.2013.6888760

W. Che, Wanchen Yang, Hao Wang

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引用次数: 4

Abstract

Artificial magnetic conductor structures (AMCs) is an effective approach to significantly improve the bandwidth and radiation gain of low-profile antennas. Comparing with other techniques, it needs no extra fabricated processes and takes the merit of easy integration. Three examples of AMC structure-based patch antennas are proposed and experimentally demonstrated. As a result, the 2×2 edge-fed patch antenna array using AMCs can achieve over 4 times bandwidth enhancement and about 3dB peak gain improvement than cavity backed antenna. Comparing with the conventional square AMCs, the patch antenna using the AMCs with inserted-stubs can achieve wider bandwidth and higher and more stable gain. Although low temperature co-fired ceramics (LTCC) substrate has a high permittivity, the relative bandwidth of the mmW LTCC antenna array using AMCs can reach 13.7%, which is about 5 times wider than that of ordinary antenna; meanwhile the peak gain can reach 13.3dBi, the stable gain (±1dB) and radiation pattern in the whole band of interest can be observed also.

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AMC及其在平面天线阵列性能增强中的应用研究

人工磁导体结构(AMCs)是显著提高低姿态天线带宽和辐射增益的有效途径。与其他技术相比，它不需要额外的制造工艺，具有易于集成的优点。提出了三种基于AMC结构的贴片天线实例，并进行了实验验证。结果表明，与腔背天线相比，采用amc的2×2边缘馈电贴片天线阵列的带宽提高了4倍以上，峰值增益提高了约3dB。与传统的方形电容相比，采用插桩电容的贴片天线可以获得更宽的带宽和更高且更稳定的增益。虽然低温共烧陶瓷(LTCC)衬底具有较高的介电常数，但采用AMCs的mmW LTCC天线阵列的相对带宽可达到13.7%，比普通天线宽约5倍;峰值增益可达13.3dBi，稳定增益(±1dB)，并能观察到整个波段的辐射方向图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2013 IEEE International Workshop on Electromagnetics, Applications and Student Innovation Competition

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