本课题针对FSS复合的机理、吸波层的传输截止机理、陡直通带的实现原理及实现方法、实用化间隔介质的影响机理以及吸波透波性能复合设计等方面研究的不足，开展基于FSS吸收体和陡直型FSS的原理和特点的研究，掌握吸波透波复合型FSS的实现机理，揭示吸波透波复合型FSS特性的调控规律，建立吸波透波复合FSS设计方法，并通过实验验证，为带通型FSS的吸波性能实现和应用奠定技术基础。

This project will study the principle and characteristics of FSS absorber and straight type FSS, research the realization mechanism of composite FSS with absorption and transparent properties, reveal the regulation of absorbing and transparent wave in the composite FSS, and establish methods for designing absorbing and transparent composite FSS. It will be the foundation of realization and application of technology involve with the band-pass type FSS.