摘要
提出并发展了一种适于任意双曲率曲面雷达罩的FSS设计方法。基于周期矩量法快速评估FSS的频率响应。经过仿真和优化设计出初步的FSS参数,制作了等效FSS平板样件。根据等效平板频率响应的测试结果及实际雷达罩的双曲率曲面外形特点对FSS参数进行修正。沿母线方向将雷达罩内表面分段划分,每一段采用直锥面进行曲面逼近并展开为分片的扇形平面,在每一分片平面上按照设计参数排布FSS单元,制作了曲面FSS雷达罩。试验测试显示,采用局部平面-曲面修正分片方法所设计的FSS雷达罩满足预期的各项性能指标要求。
A novel design method for frequency selective surfaces （FSSs） in application of a double curved streamlined radome is presented in this paper. Based on the planar FSS analysis theory, periodic moment method is used to evaluate the frequency response of the FSS, optimum parameters of the FSS is obtained. An equivalent FSS sample plate is made and experimented, According to the characteristic of the practical double curved radome and condition of antennas inclosed on the radome, planar FSS design parameters is modified. The inner double curved surface of the radome is divided into several segments along generator direction. Each segment of the radome surface separately approximated by a taper and expanded to a fan-shaped patch. Ranging FSS element in each patch, the FSS radome is made. Experimental results showed good performances of this FSS radome.
出处
《弹箭与制导学报》
CSCD
北大核心
2006年第1期123-125,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
西北工业大学创新基金资助(M450211)
