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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials
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Sensors and Materials, Volume 35, Number 12(1) (2023)
Copyright(C) MYU K.K.
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 Chen


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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.



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