一种减缩微带天线RCS的新型开槽结构  

A Novel Cutting Slot Structure for Reducing the RCS of Microstrip Antenna

作　　者：杨欢欢[1] 曹祥玉[1] 高军[1] 李文强[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《现代雷达》2012年第9期79-82,共4页Modern Radar

基　　金：电子信息系统综合集成实验室开放项目;陕西省自然科学基金研究重点项目(2010JZ010);陕西省自然科学基础研究项目(SJ08-ZT06)

摘　　要：提出了一种能在较宽频带范围内减缩微带贴片天线雷达散射截面(RCS)的新结构。该结构通过对天线贴片开圆形槽和横槽减缩高频段的RCS,结合对接地板开纵槽减缩低频段的RCS,从而实现了整个频带内RCS的有效减缩。理论分析和仿真、实测结果表明,该结构在保证天线辐射性能的同时,对2 GHz～8 GHz频段有较大幅度的RCS减缩,最大减缩值达27.16 dB。A novel structure for reducing the radar cross section （RCS） of microstrip patch antenna within a broad band is proposed By cutting circular slots and horizontal slot in the patch, the RCS of microstrip antenna in higher frequency band is reduced, sim- ultaneously, the vertical slots in the ground reduce the RCS in lower frequency range, so a good low-RCS behavior in the whole fre- quency band is obtained. Theory analysis, simulation and experiment results demonstrate that this structure can not only guarantee the antenna radiation performance, but also shows a significant RCS reduction in the frequency from 2 GHz to 8 GHz, the largest reduction is up to 27.16 dB.

关 键 词：微带贴片天线 雷达散射截面减缩 开槽 

分 类 号：TN822[电子电信—信息与通信工程]