Analysis Of Electromagneitc Compatibility For Armored Vehicle-Mounted Antenna Systems

With the rapid development of informationlized vehicle, more and more vehicle-mounted electronic equipment is widely used. Vehicle electronic information equipment is diversified and complicated. On the one hand it can improve vehicle performance observably, On the other hand vehicle-mounted electronic equipment also face the threat of complicated electromagnetic environment. The problem of the vehicle-mounted antenna system electromagnetic interference become more serious because of the difference of antenna type, quantity, operating frequency, installation method and so on. So, it has important theoretic significance and practice value to study the electromagnetic compatibility of vehicle-mounted antenna system.On the basis of the scientific research project "EMC simulation and analysis of multifunctional radio frequency sensors on XX vehicle", vehicle electromagnetic compatibility as study background, model the vehicular electromagnetic modeling by means of professional software and use the CST simulation software to study the electromagnetic compatibility for vehicle-mounted antenna system in this thesis. The work of this study may be summarized as follows:1. On the basis of the practical geometrical shape, size, material characteristics and working environment of the vehicle, analyze the electromagnetic compatibility for vehicle-mounted antenna system preliminarily. Discuss vehicle-mounted antenna system preliminarily and its analysis method simply in specific situation.2. Consider the influence of the vehicle body characteristics on the electromagnetic compatibility for vehicle-mounted antennas system. Model a full-size and practical electromagnetic vehicle body by means of image processing software.3. On the basis of the practical electromagnetic vehicle body, analyze electromagnetic compatibility for the vehicle-mounted antennas system, simulate the radiation patterns of vehicle-mounted antenna, discuss the influence of the distance between vehicle-mounted antennas on antenna coupling, give two placement schemes of vehicle-mounted antennas system.4. Introduce external source of radiation simply and discuss the influence of external source of radiation on vehicle-mounted antenna system.