Ultra - Low Loss Mg2TiO4 Based Dielectric Ceramics for Microwave Applications: An Overview

2020 ◽  
Vol 12 ◽  
Author(s):  
Ranjan Kumar Bhuyan
Keyword(s):  
Communication Systems ◽  
Microwave Dielectric Properties ◽  
Patch Antennas ◽  
Microwave Dielectric Ceramics ◽  
Low Loss ◽  
Communication Industry ◽  
Microwave Dielectric ◽  
Microwave Applications ◽  
Microwave Materials ◽  
Dielectric Ceramics

Since several decades, temperature stable, medium permittivity and low loss dielectric ceramics have been used as resonators, oscillators, filters and GPS patch antennas for microwave communication systems. Various microwave dielectric ceramics have been proposed and widely used in telecommunication industries. Among the most interesting materials of that kind, magnesium orthotitanate (Mg2TiO4) is recognized as one of the most promising low loss microwave materials which played an important role in the field of microwave and millimeter wireless communication industry. It was found that by modifying Mg2TiO4 compound with other materials, their microwave dielectric properties have changed tremendously. The main purpose of this review is to gather the information about Mg2TiO4 - based low loss dielectrics used for microwave applications. The study also helps the researchers and technologists to get compact information for Mg2TiO4 -based compounds all over the world.

scholarly journals Cold sintered CaTiO3-K2MoO4 microwave dielectric ceramics for integrated microstrip patch antennas

2020 ◽  
Vol 18 ◽  
pp. 100519 ◽  
Author(s):  
Dawei Wang ◽  
Shiyu Zhang ◽  
Ge Wang ◽  
Yiannis Vardaxoglou ◽  
Will Whittow ◽  
...  
Keyword(s):  
Patch Antennas ◽  
Microwave Dielectric Ceramics ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

A novel low loss microwave dielectric ceramics ZnTi0.6Sn0.4Nb2O8 with wolframite structure

2016 ◽  
Vol 183 ◽  
pp. 341-345 ◽  
Author(s):  
C.F. Xing ◽  
J.X. Bi ◽  
H.J. Wang ◽  
Z.L. Yang ◽  
H.T. Wu
Keyword(s):  
Microwave Dielectric Ceramics ◽  
Low Loss ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

Structure and Microwave Dielectric Properties of (Ca0.9375Sr0.0625)0.25 (Li0.5Sm0.5)0.75TiO3 Ceramics with B2O3-CuO Sintering Aids

2011 ◽  
Vol 284-286 ◽  
pp. 1442-1446
Author(s):  
Yue Ming Li ◽  
Zong Yang Shen ◽  
Zhu Mei Wang ◽  
Hua Zhang ◽  
Yan Hong ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric Ceramics ◽  
Sintering Aids ◽  
Oxide Mixture ◽  
High Permittivity ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

The B2O3-CuO oxide mixture (abbreviated as BC) was selected to lower the sintering temperature of (Ca0.9375Sr0.0625)0.25(Li0.5Sm0.5)0.75TiO3 (abbreviated as CSLST) microwave dielectric ceramics by solid sate reaction technique. The effects of BC doping amounts on the crystal structure, microstructure and microwave dielectric properties of the ceramics were investigated. For the ceramic sample with the composition of CSLST + 5 wt% BC, its sintering temperature was reduced to 1000 °C as compared to 1200 °C for pure CSLST. In addition to the obtained good microwave dielectric properties as follows: εr = 80.4, Q×f = 1380 GHz, τf = -32.89 ×10-6/°C, this ceramic was a desirable high-permittivity microwave dielectric candidate for low-temperature cofired ceramic (LTCC) applications.

Low Temperature Sintering of (Ca0.9375Sr0.0625)0.25(Li0.5Sm0.5)0.75TiO3 Microwave Dielectric Ceramics

2010 ◽  
Vol 663-665 ◽  
pp. 1028-1031
Author(s):  
Yue Ming Li ◽  
Hua Zhang ◽  
Zhu Mei Wang ◽  
Yan Hong ◽  
Zong Yang Shen
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Sintering Behavior ◽  
Low Temperature Sintering ◽  
Microwave Dielectric Ceramics ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

The sintering behavior and microwave dielectric properties of the (Ca0.9375Sr0.0625)0.25(Li0.5Sm0.5)0.75TiO3 (CSLST) ceramics doped with different amounts of Li2O-B2O3-SiO2-CaO-Al2O3 (LBSCA) glass were investigated. The sintering temperature of the CSLST ceramics can be effectively reduced over 200oC due to the addition of LBSCA glass. For the 5 wt% LBSCA-doped CSLST ceramics, which are sintered at only 1000 oC for 5 h, show optimum microwave dielectric properties as follows: εr=84.74, Qf=2446 GHz and τf=-12.48 ppm/oC.

Novel temperature stable Li2TiO3-based microwave dielectric ceramics with low loss

2015 ◽  
Vol 153 ◽  
pp. 118-120 ◽  
Author(s):  
Yi-Ding Zhang ◽  
Jun Han ◽  
Rui Liang ◽  
Di Zhou
Keyword(s):  
Microwave Dielectric Ceramics ◽  
Low Loss ◽  
Microwave Dielectric ◽  
Dielectric Ceramics
Sign in / Sign up

Export Citation Format

Share Document