Three-dimensional electromagnetic band-gap structure containing TiO2 fabricated by rapid-prototyping |
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| Authors: | Wei Dai Hong Wang |
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| Institution: | 1. Electronic Materials Research Laboratory, Key Lab of the Ministry of Education, Xi’an Jiaotong University, Xi’an, 710049, China
2. International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an, 710049, China
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| Abstract: | Three-dimensional (3D) diamond structure electromagnetic band-gap (EBG) structures containing TiO2 fabricated by rapid-prototyping (RP) technique were investigated. The simulations based on finite element method (FEM) were employed to model the band structures. The influence of aspect ratio on the band gap width was studied. The optimal band gap width EBGs were fabricated and investigated experimentally. Gel-casting together with RP technique were used in the fabrication. TiO2 gel was cast into the diamond structure molds fabricated by RP method to obtain the green EBG structures. The transmission characteristics of the EBG structures were measured by transmission/reflection (T/R) methods using a vector network analyzer. Complete band-gap was observed in the transmission characteristics in the frequency from 11 GHz to 12 GHz, which agreed well with the simulation results. |
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