Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom

We present a meandered triple-band planar-inverted-F antenna (PIFA) for integration into brain-implantable biotelemetric systems. The target applications are wireless data communication, far-field wireless power transfer, and switching control between sleep/wake-up mode at the Medical Device Radioco...

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Main Authors: Nikta Pournoori, Lauri Sydänheimo, Yahya Rahmat-Samii, Leena Ukkonen, Toni Björninen
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2021/6035169
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author Nikta Pournoori
Lauri Sydänheimo
Yahya Rahmat-Samii
Leena Ukkonen
Toni Björninen
author_facet Nikta Pournoori
Lauri Sydänheimo
Yahya Rahmat-Samii
Leena Ukkonen
Toni Björninen
author_sort Nikta Pournoori
collection DOAJ
description We present a meandered triple-band planar-inverted-F antenna (PIFA) for integration into brain-implantable biotelemetric systems. The target applications are wireless data communication, far-field wireless power transfer, and switching control between sleep/wake-up mode at the Medical Device Radiocommunication Service (MedRadio) band (401–406 MHz) and Industrial, Scientific and Medical (ISM) bands (902–928 MHz and 2400–2483.5 MHz), respectively. By embedding meandered slots into the radiator and shorting it to the ground, we downsized the antenna to the volume of 11 × 20.5 × 1.8 mm3. We optimized the antenna using a 7-layer numerical human head model using full-wave electromagnetic field simulation. In the simulation, we placed the implant in the cerebrospinal fluid (CSF) at a depth of 13.25 mm from the body surface, which is deeper than in most works on implantable antennas. We manufactured and tested the antenna in a liquid phantom which we replicated in the simulator for further comparison. The measured gain of the antenna reached the state-of-the-art values of −43.6 dBi, −25.8 dBi, and −20.1 dBi at 402 MHz, 902 MHz, and 2400 MHz, respectively.
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series International Journal of Antennas and Propagation
spelling doaj-art-dbac15dfabea43cb84f23a5fc041b5f12025-08-20T03:24:21ZengWileyInternational Journal of Antennas and Propagation1687-58772021-01-01202110.1155/2021/6035169Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid PhantomNikta Pournoori0Lauri Sydänheimo1Yahya Rahmat-Samii2Leena Ukkonen3Toni Björninen4Faculty of Medicine and Health TechnologyFaculty of Medicine and Health TechnologyDepartment of Electrical and Computer EngineeringFaculty of Medicine and Health TechnologyFaculty of Information Technology and Communication SciencesWe present a meandered triple-band planar-inverted-F antenna (PIFA) for integration into brain-implantable biotelemetric systems. The target applications are wireless data communication, far-field wireless power transfer, and switching control between sleep/wake-up mode at the Medical Device Radiocommunication Service (MedRadio) band (401–406 MHz) and Industrial, Scientific and Medical (ISM) bands (902–928 MHz and 2400–2483.5 MHz), respectively. By embedding meandered slots into the radiator and shorting it to the ground, we downsized the antenna to the volume of 11 × 20.5 × 1.8 mm3. We optimized the antenna using a 7-layer numerical human head model using full-wave electromagnetic field simulation. In the simulation, we placed the implant in the cerebrospinal fluid (CSF) at a depth of 13.25 mm from the body surface, which is deeper than in most works on implantable antennas. We manufactured and tested the antenna in a liquid phantom which we replicated in the simulator for further comparison. The measured gain of the antenna reached the state-of-the-art values of −43.6 dBi, −25.8 dBi, and −20.1 dBi at 402 MHz, 902 MHz, and 2400 MHz, respectively.http://dx.doi.org/10.1155/2021/6035169
spellingShingle Nikta Pournoori
Lauri Sydänheimo
Yahya Rahmat-Samii
Leena Ukkonen
Toni Björninen
Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom
International Journal of Antennas and Propagation
title Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom
title_full Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom
title_fullStr Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom
title_full_unstemmed Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom
title_short Small Triple-Band Meandered PIFA for Brain-Implantable Biotelemetric Systems: Development and Testing in a Liquid Phantom
title_sort small triple band meandered pifa for brain implantable biotelemetric systems development and testing in a liquid phantom
url http://dx.doi.org/10.1155/2021/6035169
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