학술논문
Chipless Wireless Temperature Sensor Based on BST Thin Film
Document Type
Conference
Author
Source
2023 IEEE 13th International Conference on Electronics Information and Emergency Communication (ICEIEC) Electronics Information and Emergency Communication (ICEIEC), 2023 IEEE 13th International Conference on. :81-84 Jul, 2023
Subject
Language
ISSN
2377-844X
Abstract
This paper presents a chipless Radio Frequency Identification (RFID) tag with temperature sensing, which combines the structure of a square ring and a V-shaped antenna to reduce the tag size while increasing the resonance point. The tag uses polyvinyl chloride (PVC) as a substrate. The feasibility of the sensor operating at 2.4 GHz frequency is verified by integrating the temperature sensitive material barium-strontium-titanate (BST), which is a ferroelectric material and shows a positive correlation between its Relative permittivity and the ambient temperature. The Radar Cross section(RCS) increases linearly as the ambient temperature increases from 20°C to 80°C, with an average sensitivity of 8.3°C/dB. The sensor tag is wireless, passive, low cost, and miniaturized, and has excellent potential for various applications.