pp. 4049-4059
S&M3467 Research Paper of Special Issue https://doi.org/10.18494/SAM4585 Published: December 15, 2023 Microwave Dielectric Propertiesof Sn-substituted Nd(Ti0.5Mo0.5)O4 Ceramicsfor Use in Patch Antenna Liquid Sensor [PDF] Yih-Chien Chen and Tse-Lung Lin (Received July 14, 2023; Accepted December 8, 2023) Keywords: liquid sensor, patch antenna, microwave dielectric properties
The microwave dielectric characteristics of NdTi(0.5−x)SnxMo0.5O4 were examined using densification and X-ray diffraction (XRD) patterns. The volume of the unit cell increased as x increased from 0 to 0.05. The Nd(Ti0.49Sn0.01Mo0.5)O4 ceramics sintered at 1425 ℃ for 4 h achieved a maximum relative density of 98.9%. The Nd(Ti0.49Sn0.01Mo0.5)O4 ceramics had a dielectric constant (εr) of 18.2 and an unloaded quality factor (Qu × f) of 35700 GHz (at 17.6 GHz) after being sintered at 1425 ℃ for 4 h, with a resonance frequency temperature coefficient (τf) of −31.2 ppm/℃. The patch antenna liquid sensor development processes and testing results were given. The observed resonance frequencies in water and acetone were 1.66 and 2.53 GHz, respectively.
Corresponding author: Yih-Chien ChenThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yih-Chien Chen and Tse-Lung Lin , Microwave Dielectric Propertiesof Sn-substituted Nd(Ti0.5Mo0.5)O4 Ceramicsfor Use in Patch Antenna Liquid Sensor, Sens. Mater., Vol. 35, No. 12, 2023, p. 4049-4059. |