High Permittivity and Low-Loss Millimeter-wave Dielectric Ceramics
Chuying YuYang ZengRobert DonnanBin Yang
Abstract
Millimeter (mm)-wave technology has great potential in applications of material, chemical, communication and life sciences. The development of high permittivity and low loss mm-wave devices has been promoted in recent years to boost the technologies. Here, the 0.95MgTiO 3 -0.05CaTiO 3 and TiO 2 ceramic systems have been investigated. The influence of sintering process, microstructure has been discussed to optimize the THz performance. The 0.95MgTiO 3 -0.05CaTiO 3 ceramics can possess permittivity of 18 and ultra-low loss of 1.9 × 10 -3 ; the TiO 2 ceramics show high permittivity of 102 and ultra-low loss of 4.2×10 -3 .
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