An inverse chiral EBG manufactured by a 3D printing method

[Display omitted] •This is the first time an inverse chiral structure composed of ceramic spiral rods was proposed and fabricated.•An EBG with the inverse chiral structure may have dual full band gaps by simulations.•The measured band gaps of the sample agree with the simulated band diagram very wel...

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Bibliographic Details
Published in:Materials letters 2018-12, Vol.232, p.213-215
Main Authors: Li, Xiali, Li, Yong, Wu, Licheng
Format: Article
Language:English
Subjects:
3-D printers
3D printing
Aluminum oxide
Band gap
Ceramics
Chiral structure
EBG
Electromagnetics
Energy gap
Materials science
Microwaves
Simulation
Structural
Three dimensional printing
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Summary:[Display omitted] •This is the first time an inverse chiral structure composed of ceramic spiral rods was proposed and fabricated.•An EBG with the inverse chiral structure may have dual full band gaps by simulations.•The measured band gaps of the sample agree with the simulated band diagram very well. In this work, a novel inverse chiral electromagnetic band gap (EBG) structure with dual band gaps is studied. The EBG, which is made of alumina ceramic, was fabricated utilizing a 3D printing technology combining with a gel casting method. The band diagram of this EBG is simulated using a high frequency structure simulator (HFSS). Dual full band gaps of 9.2 GHz – 9.9 GHz and 10.7 GHz – 11.5 GHz that may stop the propagation of microwaves despite the directions or polarizations are found in the band diagram. As a contrast, the transmission property of the manufactured sample is measured by a transmission/reflection method. Two band gaps in accordance with the simulation are confirmed.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2018.08.110