Abstract
AbstractThe diamond‐structured multiceramic coupling photonic crystal (PC) containing alumina and yttira simultaneously was successfully fabricated by stereolithography and multistep gel‐casting process. Compared with the bandgap width of the alumina PC or the yttira PC separately, the bandgap width of the multiceramic coupling PC is 8.5 GHz that became 134.9% of the alumina PC's bandgap width and 146.6% of the yttira PC's bandgap width along the direction Γ‐X<100>, and the resulting gap‐midgap ratio significantly increased too. These results agreed well with the simulation results by finite integration technique. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2569–2572, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27134
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