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Microwave dielectric properties of cation-deficient perovskite Ba2La2ZnW2O12 ceramics

YEN-NIEN WANG1, YIH-CHIEN CHEN2,* , MIN-ZHE WENG2

Affiliation

  1. Department of Electronic Engineering, Lunghwa University of Science and Technology, Gueishan District, Taoyuan City, Taiwan
  2. Department of Electrical Engineering, Lunghwa University of Science and Technology, Gueishan District, Taoyuan City, Taiwan

Abstract

The microwave dielectric properties of Ba2La2ZnW2O12 ceramics were investigated with a view to the use of such ceramics in mobile communication. Ba2La2ZnW2O12 ceramics were prepared using the conventional solid-state method with various sintering temperatures. Ba2La2ZnW2O12 is the main crystalline phase, which is accompanied by small amounts of BaWO4 as second phases. Dielectric constants (  of 21.0-21.6 and a quality factor ( ) of 18,700-38,900 GHz were obtained at sintering temperatures in the range 1400-1475 OC for 2 h. A dielectric constant ( ) of 21.6, a quality factor ( ) of 38,900 GHz, and a temperature coefficient of resonant frequency   of -104 ppm/ OC were obtained when Ba2La2ZnW2O12 ceramics were sintered at 1450 OC for 2 h..

Keywords

Ba2La2ZnW2O12, Dielectric constant, Quality factor, Temperature coefficient of resonant frequency.

Submitted at: March 1, 2022
Accepted at: Dec. 6, 2022

Citation

YEN-NIEN WANG, YIH-CHIEN CHEN, MIN-ZHE WENG, Microwave dielectric properties of cation-deficient perovskite Ba2La2ZnW2O12 ceramics, Journal of Optoelectronics and Advanced Materials Vol. 24, Iss. 11-12, pp. 610-617 (2022)