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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mohammed, Beadaa
in Cooperation with on an Cooperation-Score of 37%
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Publications (9/9 displayed)
- 2022Tapered graded index lens antenna with enhanced penetration for near-field torso imagingcitations
- 2021Hepatic steatosis detection using differential effective permittivitycitations
- 2020Wearable electromagnetic belt for steatotic liver detection using multivariate energy statisticscitations
- 2020Implantable sensor for detecting changes in the loss tangent of cerebrospinal fluidcitations
- 2019Compact implantable antennas for the cerebrospinal fluid monitoringcitations
- 2019Compact unidirectional conformal antenna based on flexible high permittivity custom-made substrate for wearable wideband electromagnetic head imaging systemcitations
- 2018Fabrication and characterization of flexible polymer iron oxide composite substrate for the imaging antennas of wearable head imaging systemscitations
- 2017Closed-form equation to estimate the dielectric properties of biological tissues as a function of agecitations
- 2017Skin tissue characterization of canine at microwave and millimeter-wave frequencies
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article
Fabrication and characterization of flexible polymer iron oxide composite substrate for the imaging antennas of wearable head imaging systems
Abstract
Given the increased interest in wearable electromagnetic imaging systems, developing a low cost, lightweight, flexible, and conformal customised substrate to accommodate the imaging antenna array is essential. The characterization and assessment of a custom-made composite substrate using a flexible polymer poly-di-methyl-siloxane (PDMS) and magnetite iron oxide (FeO.Fe2O3) for wearable head imaging systems is presented. Micro-scale FeO.Fe2O3 particles are homogeneously combined with PDMS in different ratios to build the flexible engineered magneto-dielectric (MD) composite substrate. Besides the low cost, fabrication simplicity, and durability, the magnetite FeO.Fe2O3 particles can be used to control the relative permittivity and permeability over a wide range of values to suit the proposed application. The permittivity, permeability and losses of the developed substrate are extracted using a custom-made 2-port multilayer microstrip transmission line test fixture with the help of conformal mapping algorithms. The characterization is performed across the microwave frequency range 1.2 GHz - 4 GHz, which is widely adopted for head imaging. The extracted permittivity is successfully verified by using a Keysight 85070E dielectric slim probe kit.