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Meeting Materials Science & Technology 2020
Symposium Journal of the American Ceramic Society Awards Symposium
Presentation Title Improvements of Fergusonite-type Microwave Dielectric Ceramics by Ions Substitutions
Author(s) Di Zhou
On-Site Speaker (Planned) Di Zhou
Abstract Scope The 5th generation wireless systems (5G) have gradually come to application in recent year due to its apparent advantages compared with the previous 4 G, such as ultra-wideband, ultra-high speed, and ultra-low latency. As a key technique for 5G technology, massive MIMO (multiple input and multiple output) antennas increases sector throughput and capacity density using large numbers of antennas and Multi-user MIMO (MU-MIMO). MgTiO3-CaTiO3, (Ca1+xSm1-x)(Al1-xTix)O4, Li2TiO3 and fergusonite-type LnNbO4 (Ln=La, Nd, Sm etc.) microwave dielectric ceramics systems are potential K20 materials for massive MIMO of mini-station in 5G technology. Among them, fergusonite-type LnNbO4 materials possess low Qf (Q=1/dielectric loss) and large negative TCF (temperature coefficient of resonant frequency) values. In this talk, we will introduce the novel results on the improvements of Qf and TCF values of the fergusonite-type LnNbO4 materials by A and B site substitutions with Bi3+ and V5+ ions.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advances in Polymer-assisted Sol-gel Synthesis of Aluminosilicate Precursors for Modern Cementitious Materials
Direct-Writing of 3D Photonic Crystals with Tunable Terahertz Properties
Effect of CaF2, B2O3 and the CaO/SiO2 Mass Ratio on the Viscosity and Structure of B2O3–Containing Calcium–silicate–based Melts
Glass-ceramics as Potential Waste Forms for Actinide Immobilization
Improvements of Fergusonite-type Microwave Dielectric Ceramics by Ions Substitutions
Introductory Comments: Journal of the American Ceramic Society Awards Symposium
Phase Formation and Mechanical Properties of (Mg,Co,Ni,Cu,Zn)O High Entropy Ceramics by Field Assisted Sintering Technology
Substitutional Effect of Na2O with K2O on the Viscosity and Structure of CaO-SiO2-CaF2-based Mold Flux Systems
Thermochemical Investigation of Lithium Borate Glasses and Crystals

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