Analysis of Antenna Structure Using Cross-eye Jamming
Cross-eye jamming technology is an important means of implementing angle deception for single pulse tracking sys-tems.The key factor for effective implementation of cross-eye jamming is to ensure that the amplitude of the two interference signals reaching the antenna interface of the jammed radar is equal and the phase is opposite,among which the phase is the more difficult factor to achieve.This article analyzes the non-reverse antenna implementation structure and the reverse antenna implementation structure,and draws two conclusions.One is that non reverse antennas have the advantages of simple implementation and can coun-ter passive radar,but cannot guarantee that the interference signal is in reverse phase and the effective interference sector is small.The second is that the reverse antenna structure can ensure that the interference signal arriving at the jammed radar has no phase dif-ference caused by wave path difference,which can ensure that the interference signal is in reverse phase.However,there are issues with transmission isolation and branch matching.