安防设备中HDMI传输线缆的EMC性能研究  

Research on EMC performance of HDMI transmission cable in security equipment

作　　者：王雷 邓志吉 舒金表 方城伟 WANG Lei;DENG Zhiji;SHU Jinbiao;FANG Chengwei(ZHEJIANG DAHUA TECHNOLOGY CO.,LTD,ZHEJIANG PROVINCIAL KEY LABORATORY OF HARMONIZED APPLICATION OF VISION&TRANSMISSION,Hangzhou,Zhejiang 310051,China)

机构地区：[1]浙江大华技术股份有限公司<浙江省视觉物联融合应用重点实验室>,浙江杭州310051

出　　处：《信息记录材料》2022年第2期1-4,共4页Information Recording Materials

摘　　要：根据线缆理论模型分析,通过将HDMI线缆的结构设计转化为电气特性参数,结合半电波暗室测试的辐射发射数据,从插入损耗、回波损耗及特性阻抗三项电气特性参数的角度,分析了结构设计对HDMI线缆辐射发射性能的影响,提出了HDMI线缆在EMC方面所需关注的结构设计重点。Based on the theory of cable model analysis,through the HDMI cable is converted into electrical parameters of structure design,combined with the half wave radiation emission data of darkroom test from the insertion loss and return loss and characteristic impedance Angle,characteristic parameters of three electrical The influence of structural design on the radiation emission performance of HDMI cable is analyzed,and the EMC structural design of HDMI cable is proposed.

关 键 词：高清多媒体接口 电磁兼容 电气特性 辐射发射 

分 类 号：TN98[电子电信—信息与通信工程]