航空天线罩吸波透波一体化设计

Design of Absorptive/Transmissive Integrated Aircraft Antenna Radome

摘要: 本文介绍了新型电磁材料在航空天线罩的设计技术中的应用，通过借助三维超材料设计，并引入非金属微结构与传统金属微结构组合，在实现选频透波的基础之上，同时实现了电磁波在同一频段内的屏蔽和吸收。新型吸波透波一体化设计有望提升航空天线罩隐身性能。统计结果表明，层厚11 mm的复合超材料罩壁结构的吸波透波一体天线罩在入射角0˚~60˚的范围之内，可以实现L波段72.34%~96.47%透波，同时实现Ku波段78.45%~94.49%的吸收。

Abstract: The application of new electromagnetic materials in the design technology of aircraft radome is in-troduced. On the basis of frequency-selective effect, by means of three-dimensional metamaterial design and the combination of non-metal microstructure and traditional metal microstructure, the shielding and absorption of electromagnetic wave is realized at the same frequency band. The de-sign of absorptive/transmissive integrated radome is expected to improve the stealth effect of it. The statistical results show that the absorbing/transmissive integrated radome with wall structure of 11 mm composite metamaterial can absorb 72.34% - 96.47% of the L-band and achieve absorption of 78.45% - 94.49% at the Ku-band.