L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection
The present study proposes an L-shaped coplanar strip dipole antenna for sensing the presence of adulterants in liquid food samples. The proposed antenna dimensions are optimized using ANSYS HFSS, and a prototype is fabricated and validated. The sensing region is optimized based on the current distr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/2/506 |
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| author | Sreedevi K. Menon Massimo Donelli |
| author_facet | Sreedevi K. Menon Massimo Donelli |
| author_sort | Sreedevi K. Menon |
| collection | DOAJ |
| description | The present study proposes an L-shaped coplanar strip dipole antenna for sensing the presence of adulterants in liquid food samples. The proposed antenna dimensions are optimized using ANSYS HFSS, and a prototype is fabricated and validated. The sensing region is optimized based on the current distribution and measured reflection coefficients. Adulterant detection is performed by monitoring the variation in the reflection coefficient and resonance frequency of the antenna sensor. To verify the effectiveness of the proposed planar dipole as a sensor, an adulterant, which is hydrogen peroxide, is added to various liquid samples – milk, pineapple juice, and mango juice. The reflection coefficient of the antenna sensor is found to vary with various concentrations of the samples in the study. The sensitivity analysis of the antenna sensor and the repeatability of the results is also analyzed in the work. The experimental analysis assures the use of the proposed antenna as a sensor for the detection of adulterants in liquid food samples. |
| format | Article |
| id | doaj-art-ed0465f58e5840a1a65d7a5450ce78ea |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-ed0465f58e5840a1a65d7a5450ce78ea2025-01-24T13:49:10ZengMDPI AGSensors1424-82202025-01-0125250610.3390/s25020506L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration DetectionSreedevi K. Menon0Massimo Donelli1Department of Electronics and Communication Engineering, Amrita Vishwa Vidyapeetham, Amritapuri 690525, IndiaDepartment of Civil Environmental and Mechanical Engineering, University of Trento, 38123 Trento, ItalyThe present study proposes an L-shaped coplanar strip dipole antenna for sensing the presence of adulterants in liquid food samples. The proposed antenna dimensions are optimized using ANSYS HFSS, and a prototype is fabricated and validated. The sensing region is optimized based on the current distribution and measured reflection coefficients. Adulterant detection is performed by monitoring the variation in the reflection coefficient and resonance frequency of the antenna sensor. To verify the effectiveness of the proposed planar dipole as a sensor, an adulterant, which is hydrogen peroxide, is added to various liquid samples – milk, pineapple juice, and mango juice. The reflection coefficient of the antenna sensor is found to vary with various concentrations of the samples in the study. The sensitivity analysis of the antenna sensor and the repeatability of the results is also analyzed in the work. The experimental analysis assures the use of the proposed antenna as a sensor for the detection of adulterants in liquid food samples.https://www.mdpi.com/1424-8220/25/2/506adulteration sensorcoplanar strip dipole antennamicrowave sensorsensitivity |
| spellingShingle | Sreedevi K. Menon Massimo Donelli L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection Sensors adulteration sensor coplanar strip dipole antenna microwave sensor sensitivity |
| title | L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection |
| title_full | L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection |
| title_fullStr | L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection |
| title_full_unstemmed | L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection |
| title_short | L-Shaped Coplanar Strip Dipole Antenna Sensor for Adulteration Detection |
| title_sort | l shaped coplanar strip dipole antenna sensor for adulteration detection |
| topic | adulteration sensor coplanar strip dipole antenna microwave sensor sensitivity |
| url | https://www.mdpi.com/1424-8220/25/2/506 |
| work_keys_str_mv | AT sreedevikmenon lshapedcoplanarstripdipoleantennasensorforadulterationdetection AT massimodonelli lshapedcoplanarstripdipoleantennasensorforadulterationdetection |