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Techniques and Instrumentation for Microwave Sensing
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Techniques and Instrumentation for Microwave Sensing

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 760

Special Issue Editor

Dr. Kamel Haddadi

E-Mail Website
Guest Editor
Institute of Electronics, Microelectronics and Nanotechnology, University of Lille, Villeneuve-d'Ascq, France
Interests: RF nanotechnology; microwave/MM-wave radar; sensing techniques and systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sensors detect real-world quantities, which are then converted into an electrical signal. Innovative sensor technologies are used in leading industries and daily life. In the recent years, techniques and related instruments have been focused on addressing scientific challenges with high societal impact.

Microwave (300MHz-30GHz) and mm-Wave (30GHz-300GHz) electromagnetic waves present advantages such as penetration inside materials, low power, high electrical sensitivity, non-contact and non-ionizing characterization. Despite these advantages over established methods, their penetration is still limited and confined to niche markets or academic laboratories. The inadequate commercial availability of microwave systems for NDT purposes has limited its more extensive implementation. Indeed, quantitative evaluation of materials requires dedicated calibration algorithms, protocols, standard reference materials, and essential training in GHz technologies not available at the industry level. In this effort, last developments in terms of methods and instruments at different scales of dimensions are welcome.

Dr. Kamel Haddadi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • microwave and mm-wave sensing
  • microwave monitoring
  • microwave passive sensing devices
  • microwave active sensing devices
  • microwave sensing applications

Published Papers (1 paper)

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Research

9 pages, 2978 KiB  
Communication
Development of a Microwave Sensor for Real-Time Monitoring of a Micro Direct Methanol Fuel Cell
by Shubin Zhang, Tian Qiang and Yanfeng Jiang
Sensors 2024, 24(3), 969; https://doi.org/10.3390/s24030969 - 02 Feb 2024
Viewed by 525
Abstract
Micro direct methanol fuel cells (μDMFCs) are a promising power source for microelectronic devices and systems. As the operating state and performance of a μDMFC is generally determined by both electrochemical polarization and methanol crossover, it is important to monitor the methanol concentration [...] Read more.
Micro direct methanol fuel cells (μDMFCs) are a promising power source for microelectronic devices and systems. As the operating state and performance of a μDMFC is generally determined by both electrochemical polarization and methanol crossover, it is important to monitor the methanol concentration in μDMFCs. Here, we design and fabricate a microwave sensor and integrate it with a μDMFC for the online detection of methanol concentration in a nonintrusive way. The sensing area is set at the bottom of the anode chamber of a μDMFC which exhibits a maximum output power density of 28.8 mW cm−2 at 30 °C. With a square ring structure, the dual-mode microwave sensor shows a sensitivity of 9.5 MHz mol−1 L. Furthermore, the importance of methanol concentration monitoring is demonstrated in the long term. A relatively smooth methanol decline curve was obtained, which indicated a normal and stable operating status of the μDMFC. Derived from real-time recording data, fuel utilization was additionally calculated as 28.5%. Full article
(This article belongs to the Special Issue Techniques and Instrumentation for Microwave Sensing)
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