| The rapid development of today’s automotive sector, the variety of car in front of us, but, some of the features of the car’s performance is also growing concern. First, the car’s safety performance is the performance that we need to consider, second, it gives the comfort level and can meet the people need still to be improved. When electrical equipment is installed on the top of the car, the car antenna to use more and more, car antennas will inevitably be subject to some electromagnetic interference, resulting in some of the system does not work, Addition, the antenna to receive and transmit signals is also a source of interference. So we have to find the right way to predict these effects, then the rational design of more efficient automotive car antenna.Most modern research car antenna main method is a test method, which is carried out of the car antenna more environmental electromagnetic interference testing, but this method is very high cost. With the development of more and more mature now electromagnetics, computer technology and high-speed development numerical simulation on the computer, so that you can numerical simulation on the computer, this method can not only cost savings, but also has a fast computing speed, and easy to modify the various parameters, and not as before, the tests for physical antenna, we can be simulated on a computer, if found by the electromagnetic interference is strong, we can be corrected on the computer.This article discusses the simulation technology of automotive the antenna electromagnetic compatibility problems and the problems faced, and then proceed to the car antenna modeling related discussions. Through modeling and simulation software HFSS GPS microstrip patch antenna given S11, overlays, field map, magnetic field map field research and analysis. After the study, the anti-jamming design of the car antenna equipment layout of the car to have carried out a detailed study and analysis of the design of the antenna and cable. |
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