Scalp-Implantable MIMO Antenna for High-Data-Rate Head Implants


Iqbal, Amjad and Al-Hasan, Muath and Mabrouk, Ismail Ben and Nedil, Mourad (2021) Scalp-Implantable MIMO Antenna for High-Data-Rate Head Implants. IEEE Antennas and Wireless Propagation Letters, 20 (12). pp. 2529-2533. ISSN 1536-1225, 1548-5757

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A quad-element multiple-input–multiple-output (MIMO) antenna is designed at 433 MHz industrial, scientific, and medical (ISM) band, to increase the transmission data-rate and minimize the multipath fading. The proposed MIMO antenna consists of semicircular meandered radiators with a shared ground. It is designed and optimized inside an implantable medical device in a human head model. The antenna’s results show a 10 dB fractional bandwidth of 38.26% (355–523 MHz) with a peak realized gain of −28.3 dBi. A high isolation ( > 32.6 dB) between MIMO elements is obtained using a central metallic via. Specific absorption rate and link budget are analyzed to validate the effectiveness of this antenna. The 4 × 4 MIMO channel parameters are calculated and validated. Furthermore, this antenna provides a channel capacity of 19.9 bps/Hz which is about three times higher than the single-input–single-output configuration of ≈ 5.89 bps/Hz. Hence, this MIMO configuration is a promising candidate for high-data-rate head implants.

Item Type: Article
Uncontrolled Keywords: Coupling coefficient, implantable antenna, implantable medical devices (IMD), multiple-input–multipleoutput (MIMO) antenna, mutual coupling
Subjects: T Technology > TJ Mechanical Engineering and Machinery > TJ181-210 Mechanical movements
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 19 Jan 2022 08:08
Last Modified: 19 Jan 2022 08:08


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