An optically transparent and ultra-wideband absorber based on multi-layer structure

Lu, Xuegang; Chen, Juan; Peng, Zhenghui; Wu, Zhengguang; Zhang, Anxue

doi:10.1109/csqrwc.2019.8799188

Cited by 3 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past, the polymer-based materials were used to investigate the absorber in the microwave range. For example, Lu et al investigated a microwave absorber using the metal-lossless polyvinyl butyral-metal multilayers to absorb both transverse electric (TE) and transverse magnetic (TM) in the range of 3~24.5 GHz [ 17 ]. Choi et al used a patterned resistive sheet, glass/epoxy, and glass/MWCNT-epoxy to form a multi-layer structure to design an absorber for X-band radar [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Peng

Tseng

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

In this study, an absorber with the characteristics of high absorptivity and ultra-wideband (UWB), which was ranged from the visible light range and near-infrared band, was designed and numerically analyzed using COMSOL Multiphysics® simulation software (version 6.0). The designed absorber was constructed by using two-layer square cubes stacked on the four-layer continuous plane films. The two-layer square cubes were titanium dioxide (TiO2) and titanium (Ti) (from top to bottom) and the four-layer continuous plane films were Poly(N-isopropylacrylamide) (PNIPAAm), Ti, silica (SiO2), and Ti. The analysis results showed that the first reason to cause the high absorptivity in UWB is the anti-reflection effect of top TiO2 layer. The second reason is that the three different resonances, including localized surface plasmon resonance, the propagating surface plasmon resonance, and the Fabry-Perot (FP) cavity resonance, are coexisted in the absorption peaks of the designed absorber and at least two of them can be excited at the same time. The third reason is that two FP resonant cavities were formed in the PNIPAAm and SiO2 dielectric layers. Because of the combination of the anti-reflection effect and the three different resonances, the designed absorber presented the properties of UWB and high absorptivity.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Peng

Tseng

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

show abstract

Novel Optimization Designing Method for Multilayer Broadband Absorber with Frequency-Domain Continuity

Tu,

Xiu,

Tang

et al. 2024

2024 IEEE MTT-S International Wireless Symposium (IWS)

View full text Add to dashboard Cite

Ultra-thin ultra-wideband tunable radar absorber based on hybrid incorporation of active devices

Feng¹,

Li²,

Li³

2022

Acta Phys. Sin.

View full text Add to dashboard Cite

Structural radar absorber has important application in stealth field for its ability to effectively absorb incoming radar wave and to bear the load at the same time. Metasurface absorbers can achieve nearly-perfect absorption of radar wave, and have characteristics of light weight and thin structure, but their bandwidth are usually narrow. To solve this problem, a new method of broadening the bandwidth of metasurface absorber is proposed in this work. With varactor and PIN diode integrated in a hybrid manner, the continuous tunning and discrete switching are combined together to broaden the effective absorption bandwidth of the absorber. Using this method, an ultra-wideband tunable metasurface absorber is designed and the absorbing mechanism is analyzed in depth. By changing the bias voltages of PIN diodes and varactors, the absorbing frequency can be continuously tuned within a wide band from 4.57 GHz to 8.51 GHz. Measured results verify the low radar cross section characteristics of the absorber and the effectiveness of the design method. The proposed method is simple and feasible, and can be extended to other broadband structure design.

show abstract

An optically transparent and ultra-wideband absorber based on multi-layer structure

Cited by 3 publications

References 6 publications

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Novel Optimization Designing Method for Multilayer Broadband Absorber with Frequency-Domain Continuity

Ultra-thin ultra-wideband tunable radar absorber based on hybrid incorporation of active devices

Contact Info

Product

Resources

About