Small Triple-Band Meandered PIFA for Brain-Implantable Bio-telemetric Systems: Optimization of Substrate/Superstrate Effectiveness

Pournoori, Nikta; Sydänheimo, Lauri; Ukkonen, Leena; Björninen, Toni; Rahmat-Samii, Yahya (2021)
 
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Pournoori, Nikta
Sydänheimo, Lauri
Ukkonen, Leena
Björninen, Toni
Rahmat-Samii, Yahya
2021

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doi:10.1109/APS/URSI47566.2021.9704759
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https://urn.fi/URN:NBN:fi:tuni-202302102280

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Peer reviewed
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<p>We optimize and characterize our latest reported small triple-band implantable planar inverted-F antenna (PIFA) resonating at Medical Device Radiocommunication Service (MedRadio) band (401-406 MHz), and Industrial, Scientific, and Medical (ISM) bands (902-928 MHz and 2400-2483.5 MHz) for wireless brain implants. To this end, we used a numerical 7-layer human head model to assess the impact of the substrate and superstrate properties on the peak gain of the antenna. Our results have demonstrated the gain improvements of 2 dB and up to 4.4 dB in the MedRadio and ISM bands, respectively, by optimizing the substrate properties and removing the superstrate. </p>
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