Configurations of Splitter/Combiner Microstrip Sections Loaded with Stepped Impedance Resonators (SIRs) for Sensing Applications

In this paper, several configurations of splitter/combiner microstrip sections loaded with stepped impedance resonators (SIRs) are analyzed. Such structures are useful as sensors and comparators, and the main aim of the paper is to show that the proposed configurations are useful for the optimizatio...

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Bibliographic Details
Authors: Su, Lijuan|||0000-0002-4753-9340, Mata Contreras, Francisco Javier|||0000-0001-6116-8681, Vélez, Paris|||0000-0001-6502-5987, Martín, Ferran|||0000-0002-1494-9167
Format: article
Publication Date:2016
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:170155
Online Access:https://ddd.uab.cat/record/170155
https://dx.doi.org/urn:doi:10.3390/s16122195
Access Level:Open access
Keyword:Stepped impedance resonator (SIR)
Microstrip technology
Microwave sensors
Differential sensors
Description
Summary:In this paper, several configurations of splitter/combiner microstrip sections loaded with stepped impedance resonators (SIRs) are analyzed. Such structures are useful as sensors and comparators, and the main aim of the paper is to show that the proposed configurations are useful for the optimization of sensitivity and discrimination. Specifically, for comparison purposes, i.e., to determine anomalies, abnormalities or defects of a sample under test (SUT) in comparison to a reference sample, it is shown that up to three samples can be simultaneously tested. Simple models of the proposed structures are presented, and these models are validated through electromagnetic simulation and experiment. Finally, the principle of operation is validated through a proof-of-concept demonstrator.