车载智能天线的电磁兼容性测试实例  

Electromagnetic Compatibility Testing Technology of Multifunctional Smart Antenna

作　　者：刘二佳 Liu Erjia

机构地区：[1]上海电器设备检测所有限公司

出　　处：《安全与电磁兼容》2022年第1期85-88,共4页Safety & EMC

摘　　要：车载智能天线功能不同、种类很多,如何在有限的时间内,准确评估产品所有工况的电磁兼容性成为技术难点。文章在研究多功能智能天线电磁兼容测试技术的基础上,针对发射类测试、抗扰度测试和电压驻波比测试中存在的测试时间、监控准确性等问题,提出发射类测试时不使用信号源、抗扰类测试时增大输出信号强度、采用自带频谱仪功能的多通道示波器、转接头连接可靠的条件下进行校准等解决方案,以便更好的评估此类产品的电磁兼容性。Vehicle smart antenna has many kinds with different functions.How to accurately evaluate the electromagnetic compatibility (EMC) of products under all working modes in a limited time has become a technical difficulty.Based on the research of EMC test technology of multifunctional smart antenna,aiming at the problems of test time and monitoring accuracy in transmission test,immunity test and voltage standing wave ratio test,this paper puts forward some solutions such as the signal source is not used in transmission test,the output signal strength is increased in immunity test,the multi-channel oscilloscope with its own spectrometer function is adopted,and calibration under the condition of reliable adapter connection,so as to better evaluate the EMC of such products.

关 键 词：智能天线 电磁兼容 发射类 抗扰度 电压驻波比 

分 类 号：U463.673[机械工程—车辆工程] TN03[交通运输工程—载运工具运用工程]