Li2WO4 Composite Ba3Ti4Nb4O21 Microwave Dielectric Ceramics with Near-Zero Temperature Coefficient and Low-Temperature Sintering for 5G Communication Devices

Author:

Wu Xiaohui,Su Hua

Abstract

Abstract In order to solve the problem of device miniaturization, it is urgent to develop high performance medium K materials. A series of (1-x) Ba3Ti4Nb4O21-x Li2WO4 ceramics (1-xBTN-xLW, x=12, 15, 17 and 20 mol%) were fabricated by soild-state reaction method. Li2WO4 as the effective sintering aids (~640°C) not only promoted ceramic densification and also decreased the temperature to 925°C. Among them, the 0.83BTN-0.17LW ceramic achieved best microwave performance with ε r~21.85, Q×f~10534 GHz, τ f ∼-7.78 ppm/°C. Especially, the second phase BaWO4 played major factor on microwave performance, making high K materials transfer into medium K materials and decrease the loss. More encouragingly, the temperature coefficient τ f was near zero. The above outstanding results signified that the 0.83BTN-0.17LW ceramic was expected to be a candidate material for LTCC miniaturized devices.

Publisher

IOP Publishing

Subject

Computer Science Applications,History,Education

Reference16 articles.

1. High permittivity and low loss microwave dielectrics suitable for 5G resonators and low temperature co-fired ceramic architecture;Zhou;J. Mater. Chem. C.,2017

2. Ultra-high-Q and wide temperature stable Ba(Mg1/3Tax)O3 microwave dielectric ceramic for 5G-oriented dielectric duplexer adhibition;Ni;J. Alloys Compd.,2020

3. Synthesis and microwave dielectric properties of novel temperature stable high Q, Li2ATi3O8 (A = Mg, Zn) ceramics;George;J. Am. Ceram. Soc.,2010

4. Structures in the System CaTiO3/SrTiO3;Ball;J. Solid. State. Chem.,1998

5. Microwave Dielectric Properties and Structure of the Ba6-3xSm8+2xTi18O54 Solid Solutions;Ohsato;Jpn. J. Appl. Phys.,1995

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