A General Method for Designing Reduced Surface Wave Microstrip Antennas
A General Method for Designing Reduced Surface Wave Microstrip Antennas
复制标题
设计减少表面波微带天线的通用方法
DOI：
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发表时间：
2013
影响因子：
5.7
通讯作者：
A. Mehrotra
中科院分区：
文献类型：
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作者：
V. Komanduri;D. Jackson;J. Williams;A. Mehrotra
微带天线的表面波激发是许多实际天线应用中关注的主要问题。本文讨论了如何以一种通用的方法减小微带天线的表面波激发。所提出的方法是基于一个称为简化表面波（RSW）定理的定理。RSW定理表明，通过适当选择贴片腔内填充材料的介电常数，贴片不会激发占主导地位的TM0表面波模式。本文通过比较一对RSW天线和一对传统天线之间的互耦，首次证明了这一定理的有效性。
Surface-wave excitation from microstrip antennas is of major concern in many practical antenna applications. In this paper, the challenge of reducing the surface-wave excitation from microstrip antennas in a general way is addressed. The proposed approach is based on a theorem called the reduced surface wave (RSW) theorem. The RSW theorem suggests that by properly selecting the permittivity of the filling material inside the patch cavity, the patch will not excite the dominant TM0 surface-wave mode. A validation of this theorem is demonstrated here for the first time by comparing the mutual coupling between a pair of RSW antennas and a pair of conventional antennas.