航空科学技术2025，Vol.36Issue(6)：49-57,9.DOI:10.19452/j.issn1007-5453.2025.06.006
X波段曲面小型化带通型孔径中心频率选择表面的设计
Design of Curved Miniaturized Bandpass Aperture Central Frequency Selective Surface for X Band
摘要
Abstract
With the increasing complexity of the space electromagnetic environment,higher requirements are put forward on the quality of wireless communication received and out of band stealth of the radome.Frequency selective surface(FSS)technology is a commonly adopted technique.Based on this,a bandpass aperture center FSS structure working for X-band is designed in this paper.By comparing the original cross-gap FSS structure(Case1)with the deformed FSS structures(Case2 and Case3),it is found that the deformed FSS structure(Case3),which is obtained by zigzag operation of Case1,has better transmission performance stability in both planar and curved states.The resonance frequency of the Case3 structure is 10.56GHz,the-3dB bandwidth is 1.52GHz,and the relative bandwidth is 14.39%.When the incidence angle is up to 60° under the transverse electric(TE)and transverse magnetic(TM)polarized waves,the resonant frequency offset of the structure is less than 3.78%.Thus,this structure has better angular stability.When the FSS structure is conformal on a cylindrical surface with a central angle of π/2 and a radius of 95.54mm,the maximum resonant frequency offset is 4.5%under normal incidence for x-polarized and y-polarized electromagnetic waves.Thus,this structure also has better conformal stability.Moreover,the conformal stability of the FSS structure can be further improved when the thickness of the dielectric substrate is reduced to 0.25mm.Due to the low profile,good angular stability,and conformal stability,the FSS structure has a good prospect for application in wireless communication that requires conformality.关键词
频率选择表面/角度稳定性/带通型/小型化/共形Key words
FSS/angular stability/bandpass/miniaturized/conformality分类
电子信息工程引用本文复制引用
王红伟,潘蕊,刘宁,盛贤君..X波段曲面小型化带通型孔径中心频率选择表面的设计[J].航空科学技术,2025,36(6):49-57,9.基金项目
航空科学基金(20220020063001) Aeronautical Science Foundation of China(20220020063001) （20220020063001）
