用于带通通信的频率选择表面设计  

Frequency selective surface designed for band-pass communication

作　　者：穆武第 王涛[1] 王东 

机构地区：[1]陆军军官学院,合肥230031

出　　处：《电子测量技术》2012年第10期25-29,共5页Electronic Measurement Technology

摘　　要：用仿真的手段设计某型C波段通信的无人机用带通频率选择表面(FSS),当采用方形带通FSS透射中心频率落在6GHz时,透过率大于-0.5dB的带宽达到0.96GHz,完全能满足通信要求,很大程度上抑制了其他波段的电磁波主动辐射,降低反辐射武器的威胁。采用内Y形和双屏方形FSS时,出现2个透过率高的透射峰。对于双屏方形FSS,当入射波的入射角度在-60°～60°的大范围内变化时,中心频率保持不变,透过率大于-0.5dB的带宽在入射角度为60°时最窄,双峰带宽分别为0.2GHz和0.08GHz,能保证有效通信,适于无人机采用跳频的方式进行通信,更利于无人机通信的抗干扰,提高无人机的战场生存能力。A variety of FSS were studied with simulation for band-pass communication of a certain UAV in C band. When the transmittance center frequency of transmittance is adjusted to 6 GHz, the bandwidth is 0.96 GHz with transmittance above -0.5 dB for square FSS. That can be satisfied the band-pass communication and restrain the radiation out of the communication band to reduce the menace of anti-radiation weapons. There are two high transmittance peaks with complex FSS,such as Y loop with Y metal line and double screen square FSS. For double screen square FSS,the center frequency of transmittance almost fixed and the bandwidth was enough broad for communication when the angle of incidence changed from --60°to 60°. And even if the angle of incidence was 60~, the bandwidth of two peaks were 0.2 GHz and 0.08 GHz with transmittance above --0.5 dB. That was benefit for frequency-hopping communication and improved survivability of UAVs with better anti-interference communication.

关 键 词：频率选择表面 透过率 抑制辐射 

分 类 号：TN975[电子电信—信号与信息处理]