Multifunctional Frequency-Selective Rasorber With Passband Stealth Performance

被引:0
作者
Liao, Kun [1 ]
Liu, Zhiming [2 ]
机构
[1] Pingxiang Univ, Sch Mech & Elect Engn, Pingxiang 337055, Peoples R China
[2] Nanchang Univ, Sch Informat Engn, Nanchang 330031, Peoples R China
基金
中国国家自然科学基金;
关键词
cross-polarized passband; multifunctional frequency-selective rasorber; stealth; LOW-PROFILE; SURFACE; DESIGN; RASORBER/ABSORBER;
D O I
10.1155/2024/3699905
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A multifunctional frequency-selective rasorber (MFSR) with passband stealth performance by using PIN diodes is investigated, which is made up of two reconfigurable components (a lossy layer and transmissive polarization converter surface (lossless layer)). The proposed MFSR shows transmission in-band and absorption out-band at working state, but the transparent window is closed to achieve full-band stealth at nonworking state. Besides, the equivalent circuit model (ECM) is constructed to annotate the operating principle of the designed MFSR. The MFSR indicates a wide cross-polarized transmission window from 3.71 to 4.38 GHz between two absorption bands at working, meanwhile a broadband copolarized reflection band (S11<-10 dB) is accomplished in 1.78-5.50 GHz. At nonworking, an ultra-wideband stealth band is realized in 1.81-7.0 GHz when the absorptivity is over 80%, which has a 117.8% fractional bandwidth (FBW). In addition, the MFSR has a stable oblique incident characteristic (up to 25 degrees). Finally, the sample of the MFSR is manufactured and experimented to demonstrate the availability of this design.
引用
收藏
页数:10
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