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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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Cummins, Gerard
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2019Miniaturized 3-D Cross-Type Receiver for Wirelessly Powered Capsule Endoscopycitations
- 2018Nanocomposite-Based Microstructured Piezoresistive Pressure Sensors for Low-Pressure Measurement Rangecitations
- 2016Progress towards a multi-modal capsule endoscopy device featuring microultrasound imagingcitations
- 2016Carbon screen-printed electrodes on ceramic substrates for label-free molecular detection of antibiotic resistancecitations
- 2015Electrodeposited magnetostrictive Fe-Ga alloys for miniaturised actuatorscitations
- 2014Characterization and Development of Materials for an Integrated High-Temperature Sensor Using Resistive Test Structures
- 2014Statistical analysis of stencil technology for wafer-level bumpingcitations
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article
Miniaturized 3-D Cross-Type Receiver for Wirelessly Powered Capsule Endoscopy
Abstract
This paper presents the modeling, implementation, and testing of a cross-type receiver (RX) used for wireless power transfer (WPT) into an endoscopic capsule. A 3-D configuration for the receiver is proposed to increase the wireless link power transfer efficiency (WL-PTE) and enhance its robustness to angular variations of the capsule. The diameter and thickness of the flexible transmitter coils are 200 mm and 185 μm, respectively. The diameter of the miniaturized RX is 8 mm, which is appropriate for integration within current commercially available capsules. Experimental results demonstrate a WL-PTE of 1.3% and complete system efficiency of 0.9% inside a suitable tissue phantom of the relative permittivity of 300 at 5 MHz. A maximum variation of only 8.4% of the WL-PTE across 90° orientation of the RX was also measured. The minimum WL-PTE of 1% is the recorder for 7-cm translational displacement inside the phantom. A simulated specific absorption rate of 0.86 W/Kg was calculated, which is well below the limit allowed for medical applications. A maximum temperature variation of 2.2 °C was also measured for an operating duration of 10 h, which is typical of a capsule journey inside the gastrointestinal tract. The proposed system represents a viable proposition for WPT in capsule endoscopy.