Planar Microwave Resonant Sensors: A Review and Recent Developments
Source abstract
Abstract
Microwave sensors based on electrically small planar resonant elements are reviewed in this paper. By virtue of the high sensitivity of such resonators to the properties of their surrounding medium, particularly the dielectric constant and the loss factor, these sensors are of special interest (although not exclusive) for dielectric characterization of solids and liquids, and for the measurement of material composition. Several sensing strategies are presented, with special emphasis on differential-mode sensors. The main advantages and limitations of such techniques are discussed, and several prototype examples are reported, mainly including sensors for measuring the dielectric properties of solids, and sensors based on microfluidics (useful for liquid characterization and liquid composition). The proposed sensors have high potential for application in real scenarios (including industrial processes and characterization of biosamples).
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Research context
OpenAlex topics: Microwave and Dielectric Measurement Techniques · Acoustic Wave Resonator Technologies · Microwave Engineering and Waveguides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
CIMITEC, Departament d’Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
Departamento de Ingeniería Audiovisual y Comunicaciones, Universidad Politécnica de Madrid, 28031 Madrid, Spain
Funding
Agència de Gestió d'Ajusts Universitaris i de Recerca · European Regional Development Fund · Institució Catalana de Recerca i Estudis Avançats · Ministerio de Ciencia, Innovación y Universidades · Universidad Politécnica de Madrid Young Researchers Support Program
References (95)
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