The Carrier Platforms Antenna Electromagnetic Compatibility Studies

With the development of science and technology, more and more attention hasbeen paid on electeomagnetic compatibility problems between platforms antennas. Alarge number of electeronic devices, antennas are mounted on the narrow space like thevehicles, and cause a strong electric field interference. In order to avoid electromagneticinterference affecting the normal use of the device, it is necessary to predict the EMCplatform antenna. Compared with the previous experience of design, here we use anumberical algorithm——MOM for accurate calculation of the relevant parameters ofelectromagnetic compatibility between platforms antenna.First, a review of the platform antenna EMC research background, significance andrecent domestic and foreign research progress. In order to accurately calculate theplatform antenna system, surface integral equation method of moments numericalmethod for this study. Details the MOM to calculate the three-dimensional complextarget electromagnetic radiation, especially a more comprehensive study of the antennaexcitation source. Compare the differences and advantages of the magnetic frill model,relative to the excitation of excitation more in line with actual measurements. Achievethe calculate the three-dimensional complex target electromagnetic radiation.Second, the research of the mutual coupling between the antenna is introducedfirstly, The differences between the mutual coupling and mutual impedances fortransmitting and receiving antenna arrays are explained, and the new mutual couplingproposed by Hui is calculated.Analysis the range of mutual coupling. Calculating themutual coupling of wire antenna array by reciprocity theorem. We can use the numberof wire antenna quickly calculate antenna isolation, also the isolation measures ofplatforms antennas were studied. Calculating the shielding effectiveness of theelectromagnetic compatibility, and compare the various shielding measures ofperformance quality.Finally, Analysis of electromagnetic compatibility between the vehicle antenna from the system point of view. The principles of modeling and program of antennalayout are studied. On the basis of calculating the antenna radiation characteristics andisolation, we study the interference between the coupling amount in the wireless devices,include harmonic interference.