标准增益喇叭天线的准确定标测量

标准增益喇叭天线经常用作天线测量时的增益参考天线，所以，标准增益喇叭天线的增益定标值的准确性决定了被测天线增益测量的准确度。目前国内所使用的标准增益喇叭天线往往采用理论值，不能很好地保证天线测量数据的准确性。介绍了一种通过时域测量技术以及距离影响修正相结合，对标准增益喇叭天线增益值进行准确定标的测量方法。经过实验验证，该方法具有准确度高、易实施、适用于各类型天线产品测量的特点。

Accurately measurement Of the standard gain horn antenna

In antenna measurement, standard gain horn antenna is often used as gain reterence antenna. accuracy of AUT （antenna under test） gain test depends on the gain reference value of the standard horn antenna. At present, the domestic standard gain horn antenna usually works with theoretic gain value. As a result, the accuracy of the AUT test data cannot be guaranteed. This paper introduces a new method that measures the gain of the standard horn antenna with a technique combining time domain measurement and correction of distance influence. It is demonstrated by the experiment that this new method has characteristics of high accuracy, easy operation and broad applicability in measurement of many types of antenna products.