Substrate choice impact on microwave sensor

In this paper, the impact of dielectric properties of a carrier substrate on the sensitivity of a planar microwave resonator is studied for sensing applications. It is demonstrated experimentally and practically that the substrate material plays a significant role in microwave sensor's characte...

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Bibliographic Details
Published in2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) pp. 1 - 2
Main Authors Deif, Sameir, Zarifi, Mohammad Hossein, Daneshmand, Mojgan
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2016
Subjects
dielectric permittivity
microwave sensing
passive planar resonator sensor
sensor's sensitivity
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Summary:In this paper, the impact of dielectric properties of a carrier substrate on the sensitivity of a planar microwave resonator is studied for sensing applications. It is demonstrated experimentally and practically that the substrate material plays a significant role in microwave sensor's characteristics. As a generic planar ring resonator, a passive microwave ring resonator with a slit is used to illustrate that a low permittivity substrate has a significantly higher sensitivity to permittivity variation in its environment, compared with a substrate with higher permittivity. Extensively, it is demonstrated that the same sensitivity analysis regarding substrate dielectric properties can be extended to active resonators, which have a higher quality factor and resolution than passive structures.
DOI:10.1109/ANTEM.2016.7550219