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一、概述 近场测量是新近兴起的一种测试天线特性的新方法,它包括缩距技术,聚焦技术、外推技术和解析技术。仅就解析技术而言,就有波动光学祛、电流分布法和模式展开法(即本文所述的近场扫描技术)。
I. Overview Near-field measurement is a newly emerging method of testing antenna characteristics. It includes the pitch technique, focus technique, extrapolation technique, and resolution technique. As far as analytical techniques are concerned, there are wave optics, current distribution and pattern expansion (ie, the near-field scanning technique described herein).