摘要
随着汽车无线通信发展,对天线的性能和尺寸要求越来越高,收音机天线逐渐由鞭状天线过渡为以玻璃天线为代表的共形天线。由于在整车环境下,金属车体结构和其他车载电子设备均会对天线性能产生影响,对整车级收音机天线性能进行定量测试评价尤为重要。本文首先基于已有的收音机天线测试标准,对比分析了场地环境要求,并给出场均匀性验证方法;其次介绍了基于参考天线的收音机天线的整车级测试方法及注意事项;最后提出了整车级收音机天线性能的评价指标应为天线增益和天线增益的频率响应,并给出计算方法及建议限值。本文对推动整车级收音机天线性能测试评价提供了理论基础,为行业提供测试依据。
With the development of automotive wireless communication,the requirement for the performance and size of antenna are getting higher,and the AM/FM antenna is gradually transitioning from a whip antenna to a conformal antenna,which is represented by glass antenna.Since the metal vehicle structure and other on-board electronic equipment will affect the performance of the antenna in the vehicle,it is particularly important to perform quantitative test and evaluation on the performance of the vehicle-level AM/FM antenna.Based on the existing test standards,the article first compares and analyzes the site environment requirement,and gives the field uniformity verification method;secondly,the vehicle-level test method of the AM/FM antenna based on the reference antenna is introduced;finally,it is proposed that the vehicle-level AM/FM antenna performance evaluation items should be antenna gain and frequency response of antenna gain,then the calculation method and recommended limits are introduced.This article provides a theoretical basis for the promotion of vehicle-level AM/FM antenna performance test and evaluation,and provides a test basis for the industry.
作者
冯家煦
季国田
姜国凯
吴在园
Feng Jiaxu;Ji Guotian;Jiang Guokai;Wu Zaiyuan(CATARC Automotive Test Center(Tianjin)Co.,Ltd.,Tianjin 300300;China Automotive Technology and Research Center Co.,Ltd.,Tianjin 300300)
出处
《中国汽车》
2021年第6期51-56,63,共7页
China Auto
关键词
汽车无线通信
收音机天线性能
整车级测试评价
automotive wireless communication
AM/FM antenna performance
vehicle-level test and evaluation
