无人作战飞机天线多层频率选择表面技术

摘要

无人机作战飞机(UCAV)快速发展的同时,无人机平台天线的频率选择表面(FSS)技术也得到广泛应用.设计和测试了一种用于无人作战飞机天线隐身的多层频率选择表面,多层频率选择表面通带为K频段,并且有一个很宽的阻带.数值结果和测试结果验证了该频率选择表面的有效性.该设计技术可以广泛应用在今后无人作战飞机天线隐身上,也可以用在其他隐身平台的相关天线设计中.%With the rapid development of unmanned combat aerial vehicle(UCAV),the frequency selective surface(FSS) technique has been widely applied for the antennas of unmanned combat aircraft vehicle.This paper describes the design and measurement of a multi-layer FSS in order to reduce the radar cross section(RCS) of the antennas of UCAV.The proposed FSS has the pass-band centered at K band and also wide out-of-band rejection.Numerical results and measured results show the efficiency of the proposed FSS.The technique proposed in this paper can be widely applied in UCAV's antenna stealth and other stealth platforms' antenna design.