研究目的
Developing a planar microstrip ring resonator structure on alumina covered with a zeolite film for gas and humidity sensing purposes.
研究成果
The planar microstrip ring resonator structure with a zeolite film was successfully operated as a humidity sensor at room temperature. Future enhancements include integrating a heater for broader gas sensing applications under varying conditions.
研究不足
The current setup lacks an integrated heater, limiting testing to room temperature. Future work includes adding a heater for testing under various temperature conditions.
1：Experimental Design and Method Selection:
A planar ring resonator structure was designed using COMSOL Multiphysics and characterized for transmission and reflection measurement.
2：Sample Selection and Data Sources:
An alumina substrate covered with laser-patterned gold microstrip lines was used, with the ring resonator covered with a functional material (zeolite).
3：List of Experimental Equipment and Materials:
Alumina substrate, gold microstrip lines, zeolite film, SMA plug, network analyzer.
4：Experimental Procedures and Operational Workflow:
The resonator was tested at room temperature with an iron-exchanged zeolite film, measuring response towards water in reflection mode.
5：Data Analysis Methods:
The resonant frequency and the modulus of the reflection coefficient at resonance were analyzed to determine the effect of water on the zeolite's permittivity.
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