Performance of the composite used for bulletproof radome in Ku/Ka band
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摘要: 为解决Ku/Ka双频段天线罩的防弹和透波问题,本文通过波导法研究材料的介电性能,并利用HFSS软件对双频工作的复合材料进行透波性能仿真设计,并采用试验与理论计算验证了超高分子量聚乙烯(UHMWPE)防弹和透波性能。研究表明:UHMWPE的介电性能优异,适用于Ku/Ka双频段天线罩。HFSS仿真设计表明,7 mm UHMWPE的Ku频段损耗为0.2 dB,Ka频段损耗为0.6 dB,仿真结果与实际测试结果吻合。防弹打靶试验表明,面密度为5.6 kg/m2的UHMWPE防弹等级优于1级,实测V50值为546 m/s。Abstract: The need of the bulletproof radome in Ku/Ka band is becoming more and more urgent as the weapon power increasing. The dielectric performances were discussed by waveguide method. After the simulation and experiment, the ultra-high molecular weight polyethylene (UHMWPE) was the best composite in Ku/Ka band. The wave transparent performances of bulletproof laminates were optimized by HFSS software. The loss of 7 mm bulletproof laminate is 0.2 dB at Ku band, while 0.6 dB at Ka band, which fits the simulation result. The bullet performance of 5.6 kg/m2 UHMWPE laminate is beyond 1 Class, whose V50 is 546 m/s.
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Key words:
- bulletproof /
- transparent /
- UHMWPE /
- Ku/Ka band /
- radome
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