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RESEARCH PRODUCT
Broadband microwave gas sensor: A coaxial design
Didier StuergaJérôme RossignolJ. Jouhannaudsubject
Materials sciencebusiness.industryBandwidth (signal processing)Electrical engineeringDielectricCondensed Matter PhysicsAtomic and Molecular Physics and OpticsFrequency spectrumElectronic Optical and Magnetic MaterialsBroadbandCoaxial lineOptoelectronicsElectrical and Electronic EngineeringReflection coefficientCoaxialbusinessMicrowavedescription
The method of gas detection by a broadband microwave gas sensor is presented in this article. The principle of this method is to use a sensitive material as substrate of a transmission coaxial line. The sensor represents an open line with an extreme surface in contact with gas. The interaction with the gas and the surface induces a dielectric variation of the substrate. From experimental results, the interaction between the sensitive material and each tested gas present a specific frequency spectrum of the reflection coefficient at the input of the line. The proposed method has the advantage of a compact size, wide bandwidth, simple structure, and capable with all sensitive materials. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1739–1741, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25359
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-08-01 | Microwave and Optical Technology Letters |