摘要
对于集成度高的天线,必须采用一定的算法才能实现对各个通道的幅度和相位信息准确有效的检测,而现有常见的算法(包括近场校准、FFT算法等)都需要获得相位信息,因此需要天线对测试提供参考通道。这与天线高集成度相悖,也对天线的设计,特别是共形天线的设计提出了更高要求。为解决传统算法依赖参考通道提供参考相位的问题,并针对高集成度天线常用的近场扫描测试系统,设计了自参考算法的解决方案并进行验证。试验表明,采用自参考测试算法进行近场测试的测试结果与传统带独立参考通道的近场测量系统测试结果高度吻合。此外,采用自参考测试算法,不需要单独的参考通道,适用于高集成一体化天线的近场测试,对于已装机的天线现场测试排故具有重要意义。
For high integrated antenna, certain method must be adopted achieve accurate and effective detection of amplitude and phase information of array. However, traditional method (including near-field calibration, FFT, etc.) all need to obtain phase information, so the antenna needs to provide reference channel for testing. This is contrary to the high integration of antenna, and also puts forward higher requirements for antenna designation, especially for the conformal antenna. In order to solve the problem that the traditional method relies on the parameter channel to provide reference phase, a self-reference method is designed for the near-field measurement, a test troubleshooting scenatio commonly used by high integrated antennas. The test results show that the results of the near-field test using the self-reference method are highly consistent with the test results of the traditional near-field measurement system with independent reference channel. In addition, self-reference method, which does not need a separate reference channel, is suitable for the near-field test of highly integrated antenna, which is of great significance for the field test arrangement of installed antenna.
作者
杜艳
杨顺平
Du Yan;Yang Shunping(Southwest China Insitute of Electronic Technology,Chengdu 610036,China)
出处
《电子技术应用》
2019年第8期91-94,98,共5页
Application of Electronic Technique
关键词
自参考
近场测试
高集成度
相控阵
self-reference method
near-field measurement
high-density
phased array
