车载通信系统天线电磁特性的研究  

Research of electromagnetic properties of antennas in vehicle communication system

作　　者：李广宇[1,2] 郭爱煌[1,2] 尚秀辉[1] 李慧[1] 

机构地区：[1]同济大学电子与信息工程学院,上海200092 [2]毫米波国家重点实验室,南京210096

出　　处：《电子测量技术》2010年第7期34-39,共6页Electronic Measurement Technology

基　　金：毫米波国家重点实验室开放课题(No.K201009)

摘　　要：天线是车载通信系统的重要设备,研究天线的电磁特性对提高车载通信系统电磁兼容性能十分重要。基于DSRC通信模型,利用分层建模的方法建立全尺寸逼真汽车模型和鞭状天线模型,应用FMM算法仿真分析天线的反射系数和汽车上不同位置处天线水平增益方向图的变化情况,并研究分析通信环境对车载通信系统天线耦合度的影响。结果表明:仿真模型和算法能够正确模拟干扰因素对车载通信系统天线电磁特性的影响。Antennas have become an important component for vehicle communication system,thus the research of electromagnetic properties of antennas is of great importance to enhance the performance of Electromagnetic Compatibility （EMC） for vehicle communication system.In this paper,on the basis of DSRC communicating model,utilizing hierarchical modeling methods to build full-size realistic vehicle model and whip antenna model.Then the reflection coefficients of antennas and horizontal gains variation of antennas set at different place on a vehicle,as well as the environmental factors influencing Antenna Efferent Coupling of vehicle communication system have been simulated by introducing FFM algorithm.Results show that simulation model and algorithm can correctly simulate the interference factors on the electromagnetic properties of antennas for vehicle communication system.

关 键 词：车载天线 专用短程通信 快速多极子算法 电磁特性 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]