Research on sintering behavior and microwave dielectric property of (Mg0.95Ca0.05)TiO3 ceramics for cross coupling filter

Author:

Luo Chunya12,Ma Zhichao2,Hu Laisheng1,Hu Mingzhe3,Huang Xiaomin1

Affiliation:

1. College of Electronic Information, Huanggang Normal University, Huanggang 438000, China

2. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

3. College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China

Abstract

The microwave dielectric properties of [Formula: see text]–[Formula: see text] (abbreviated as 95MCT hereafter) ceramics have been studied for application in dielectric cross coupling filters. [Formula: see text] and [Formula: see text] were selected as liquid sintering aids to lower the sintering temperature and enhance the Qf value of 95MCT and simultaneously we varied the mole ratio of [Formula: see text] to tune the microwave dielectric properties of 95MCT. When the [Formula: see text] mole ratio was 1.5 and the co-doping content was 0.25 wt.%, the optimal sintering temperature of 95MCT ceramic could be lowered from [Formula: see text] to [Formula: see text] and the Qf value could be improved by about 7.7%. The optimal microwave dielectric properties obtained under this condition were Qf = 72730 GHz (6.8 GHz), [Formula: see text] and [Formula: see text], which demonstrated great potential usage in ceramic industry. High values of Qf ceramic were used to design the dielectric cross coupling filter. The dielectric filter measured at 2.35 GHz exhibited a 6.7% bandwidth (insert loss [Formula: see text] dB) of center frequency.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Microwave dielectric characteristics of NdAlO3-doped 0.95MgTiO3-0.05CaTiO3 ceramics;Journal of Materials Science: Materials in Electronics;2016-08-26

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