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- Title
Two-dimensional displacement and alignment sensor based on reflection coefficients of open microstrip lines loaded with split ring resonators.
- Authors
Horestani, A. K.; Naqui, J.; Abbott, D.; Fumeaux, C.; Martín, F.
- Abstract
A two-dimensional displacement and alignment sensor is proposed based on two open-ended transmission lines, each loaded with a split ring resonator (SRR). In this arrangement, the depth of resonance-induced notches in the reflection coefficients can be used to sense a displacement of the loading SRRs in two orthogonal directions. Since the operation principle of the sensor is based on the symmetry properties of SRR-loaded transmission lines, the proposed sensor benefits from immunity to variations in ambient conditions. More importantly, it is shown that in contrast to previously published metamaterial-inspired two-dimensional displacement and alignment sensors, the proposed sensor can be operated at a single fixed frequency. The concept and simulation results are validated through measurement.
- Subjects
REFLECTANCE; DETECTORS; RESONANCE; ELECTROMAGNETISM; MICROSTRIP transmission lines
- Publication
Electronics Letters (Wiley-Blackwell), 2014, Vol 50, Issue 8, p620
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2014.0572