Dielectric measurements of mangoes from 0.5GHz to 20GHz using a custom open-ended coaxial probe
| Autor: | Ilaria Matacena, Harshitha Thippur Shivamurthy, Marco Spirito |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Permittivity
Materials science business.industry Frequency band 0211 other engineering and technologies Ranging 02 engineering and technology Dielectric 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Optics Broadband Calibration Coaxial business Microwave 021101 geological & geomatics engineering |
| Zdroj: | 2017 47th European Microwave Conference (EuMC). |
| DOI: | 10.23919/eumc.2017.8231005 |
| Popis: | In this paper, we present the calibration procedure of an open-ended coaxial probe for the non-invasive dielectric characterization of biological samples at microwave frequencies. Custom broadband probes are characterized using an in-house rational function model enabling direct VNA calibration at the coaxial aperture plane. The custom coaxial probes are then used to characterize the dielectric properties of healthy and infected mangos (Xanthomonas campestris bacteria) over the frequency band ranging from 500MHz to 20GHz. A relative difference, in the mean epsilon (over 8 samples) values between the good and infected mangos, of 30% and 40% is found for the real and imaginary part of the permittivity respectively over the band 0.5–5 GHz. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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