Microwave dielectric properties of x(Mg0.7Zn0.3) 0.95Co0.05TiO3-(1 - X)Ca0.8Sr 0.2TiO3 ceramics with a zero temperature coefficient of resonant frequency

Cheng Liang Huang; Shih Hung Lin; Shih Sheng Liu; Yuan Bin Chen; Sih Yin Wang

doi:10.1016/j.jallcom.2010.05.015

Microwave dielectric properties of x(Mg_0.7Zn_0.3) _0.95Co_0.05TiO₃-(1 - X)Ca_0.8Sr _0.2TiO₃ ceramics with a zero temperature coefficient of resonant frequency

Cheng Liang Huang
, Shih Hung Lin
, Shih Sheng Liu
, Yuan Bin Chen
, Sih Yin Wang

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The microwave dielectric properties and microstructures of x(Mg _0.7Zn_0.3)_0.95Co_0.05TiO ₃-(1 - x)C_0.8Sr_0.2TiO₃ ceramics prepared using a mixed oxide route were investigated. (Mg_0.7Zn _0.3)_0.95Co_0.05TiO₃ has a dielectric constant (ε_r)of ∼20, a high-quality factor (Q×f)of ∼163,560 GHz, and a temperature coefficient of resonant frequency (t _f)of ∼-65 ppm/°C. To produce a temperature-stable material, Ca_0.8Sr_0.2TiO₃, which has a large positive t_f value of 990ppm/°C, was added to (Mg_0.7Zn _0.3)_0.95Co_0.05TiO₃. The temperature coefficient of resonant frequency increased with increasing Ca _0.8Sr_0.2TiO₃ content, going through zero at x = 0.95. The microwave dielectric material 0.95(Mg_0.7Zn _0.3)_0.95Co_0.05TiO₃-0D5Ca _0.8Sr_0.2TiO₃ has an excellent combination of microwave dielectric properties: ε_r ∼22.5, Q×f×90,000 (at 9GHz), and t_f ~0.1 ppm/°C sinter at 1150°C. It is proposed as a candidate material for ISM band components and GPS antennas.

Original language	English
Pages (from-to)	392-396
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	503
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.05.015
Publication status	Published - 2010 Jul 23

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.05.015

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@article{73d3ad741569437eaf77e385761b03cc,

title = "Microwave dielectric properties of x(Mg0.7Zn0.3) 0.95Co0.05TiO3-(1 - X)Ca0.8Sr 0.2TiO3 ceramics with a zero temperature coefficient of resonant frequency",

abstract = "The microwave dielectric properties and microstructures of x(Mg 0.7Zn0.3)0.95Co0.05TiO 3-(1 - x)C0.8Sr0.2TiO3 ceramics prepared using a mixed oxide route were investigated. (Mg0.7Zn 0.3)0.95Co0.05TiO3 has a dielectric constant (εr)of ∼20, a high-quality factor (Q×f)of ∼163,560 GHz, and a temperature coefficient of resonant frequency (t f)of ∼-65 ppm/°C. To produce a temperature-stable material, Ca0.8Sr0.2TiO3, which has a large positive tf value of 990ppm/°C, was added to (Mg0.7Zn 0.3)0.95Co0.05TiO3. The temperature coefficient of resonant frequency increased with increasing Ca 0.8Sr0.2TiO3 content, going through zero at x = 0.95. The microwave dielectric material 0.95(Mg0.7Zn 0.3)0.95Co0.05TiO3-0D5Ca 0.8Sr0.2TiO3 has an excellent combination of microwave dielectric properties: εr ∼22.5, Q×f×90,000 (at 9GHz), and tf \textasciitilde{}0.1 ppm/°C sinter at 1150°C. It is proposed as a candidate material for ISM band components and GPS antennas.",

author = "Huang, \{Cheng Liang\} and Lin, \{Shih Hung\} and Liu, \{Shih Sheng\} and Chen, \{Yuan Bin\} and Wang, \{Sih Yin\}",

year = "2010",

month = jul,

day = "23",

doi = "10.1016/j.jallcom.2010.05.015",

language = "English",

volume = "503",

pages = "392--396",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

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T1 - Microwave dielectric properties of x(Mg0.7Zn0.3) 0.95Co0.05TiO3-(1 - X)Ca0.8Sr 0.2TiO3 ceramics with a zero temperature coefficient of resonant frequency

AU - Huang, Cheng Liang

AU - Lin, Shih Hung

AU - Liu, Shih Sheng

AU - Chen, Yuan Bin

AU - Wang, Sih Yin

PY - 2010/7/23

Y1 - 2010/7/23

N2 - The microwave dielectric properties and microstructures of x(Mg 0.7Zn0.3)0.95Co0.05TiO 3-(1 - x)C0.8Sr0.2TiO3 ceramics prepared using a mixed oxide route were investigated. (Mg0.7Zn 0.3)0.95Co0.05TiO3 has a dielectric constant (εr)of ∼20, a high-quality factor (Q×f)of ∼163,560 GHz, and a temperature coefficient of resonant frequency (t f)of ∼-65 ppm/°C. To produce a temperature-stable material, Ca0.8Sr0.2TiO3, which has a large positive tf value of 990ppm/°C, was added to (Mg0.7Zn 0.3)0.95Co0.05TiO3. The temperature coefficient of resonant frequency increased with increasing Ca 0.8Sr0.2TiO3 content, going through zero at x = 0.95. The microwave dielectric material 0.95(Mg0.7Zn 0.3)0.95Co0.05TiO3-0D5Ca 0.8Sr0.2TiO3 has an excellent combination of microwave dielectric properties: εr ∼22.5, Q×f×90,000 (at 9GHz), and tf ~0.1 ppm/°C sinter at 1150°C. It is proposed as a candidate material for ISM band components and GPS antennas.

AB - The microwave dielectric properties and microstructures of x(Mg 0.7Zn0.3)0.95Co0.05TiO 3-(1 - x)C0.8Sr0.2TiO3 ceramics prepared using a mixed oxide route were investigated. (Mg0.7Zn 0.3)0.95Co0.05TiO3 has a dielectric constant (εr)of ∼20, a high-quality factor (Q×f)of ∼163,560 GHz, and a temperature coefficient of resonant frequency (t f)of ∼-65 ppm/°C. To produce a temperature-stable material, Ca0.8Sr0.2TiO3, which has a large positive tf value of 990ppm/°C, was added to (Mg0.7Zn 0.3)0.95Co0.05TiO3. The temperature coefficient of resonant frequency increased with increasing Ca 0.8Sr0.2TiO3 content, going through zero at x = 0.95. The microwave dielectric material 0.95(Mg0.7Zn 0.3)0.95Co0.05TiO3-0D5Ca 0.8Sr0.2TiO3 has an excellent combination of microwave dielectric properties: εr ∼22.5, Q×f×90,000 (at 9GHz), and tf ~0.1 ppm/°C sinter at 1150°C. It is proposed as a candidate material for ISM band components and GPS antennas.

UR - https://www.scopus.com/pages/publications/77956712780

UR - https://www.scopus.com/pages/publications/77956712780#tab=citedBy

U2 - 10.1016/j.jallcom.2010.05.015

DO - 10.1016/j.jallcom.2010.05.015

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SN - 0925-8388

VL - 503

SP - 392

EP - 396

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

Microwave dielectric properties of x(Mg_0.7Zn_0.3) _0.95Co_0.05TiO₃-(1 - X)Ca_0.8Sr _0.2TiO₃ ceramics with a zero temperature coefficient of resonant frequency

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