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Displacement Sensors Based on the Phase of the Reflection Coefficient of a Split Ring Resonator Loaded Transmission Line
Abstract
— In this paper, novel displacement sensors using a microstrip loaded with a pair of split ring resonators (SRRs) are proposed. It is shown that the phase of the reflection coefficient from the loading SRRs can be used for displacement sensing. The paper also proposes a differential version of the sensor that benefits from a higher sensitivity and reference zero, which is useful for alignment purposes. It is further shown that the concept of interferometry can be used to convert the output variable of the sensor from changes in the phase to variation in the amplitude of the reflected wave, which can be easily measured. To this end, the proposed single-ended or differential sensors are used along with a branch-line coupler. The proposed sensing mechanism is validated through EM simulation of the structures. The concept is further validated through the fabrication and measurement of a prototype
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
IEEE SENSORS JOURNAL
no. 22,
pages 20321 - 20327,
ISSN: 1530-437X - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Shaterian Z., Mrozowski M.: Displacement Sensors Based on the Phase of the Reflection Coefficient of a Split Ring Resonator Loaded Transmission Line// IEEE SENSORS JOURNAL -Vol. 22,iss. 21 (2022), s.20321-20327
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/jsen.2022.3208435
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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