将接地基板延伸至AMC以外对螺旋天线性能的影响

2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI:10.1109/ANTEM.2010.5552429

A. Mehrabani, L. Shafai

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引用次数: 3

摘要

人工磁性导体(AMC)地平面的发展导致了低轮廓平面天线的出现。本质上，AMC结构由任意形状的片状周期性阵列组成，背后是接地的介电板。在平面天线中，螺旋天线是圆极化应用的理想选择。在[1-5]中，相当大的努力集中在降低旋度和螺旋天线的总高度上。其中，设计了一个非常紧凑的低轮廓螺旋天线，在[5]中距离仅为0.02λο，其中λο为4.5GHz的自由空间波长。

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Effect of extending grounded substrate beyond AMC on the performance of spiral antennas

Development of artificial magnetic conductor (AMC) ground planes has resulted in low profile planar antennas. Essentially, AMC structures consist of a periodic array of arbitrarily shaped patches backed by a grounded dielectric slab. Among planar antennas, the spiral antenna is an excellent candidate for circular polarization applications. In [1–5], considerable efforts have been focused on decreasing the overall height of the curl and spiral antennas. Among which, a very compact and low profile spiral antenna was designed with a distance of only 0.02λο in [5], where λο is the free-space wavelength at 4.5GHz.

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2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference

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