Characterization of 3D Loop Antenna to Overcome the Impact of Small Lateral Misalignment in Wirelessly Powered Intracranial Pressure Monitoring System

M. Waqas A. Khan; Muhammad Rizwan; Lauri Sydänheimo; Toni Björninen; Yahya Rahmat-Samii; Leena Ukkonen

doi:10.1109/TAP.2017.2765818

Characterization of 3D Loop Antenna to Overcome the Impact of Small Lateral Misalignment in Wirelessly Powered Intracranial Pressure Monitoring System

M. Waqas A. Khan
, Muhammad Rizwan
, Lauri Sydänheimo
, Toni Björninen
, Yahya Rahmat-Samii
, Leena Ukkonen

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

This paper presents a 3D loop antenna to overcome the impact of small lateral misalignment of the order of 2 mm between the inductively coupled antennas. This work is a continuation of our previously reported work. In our previous work, we have successfully activated the pressure monitoring sensor and performed the pressure readout for an intracranial pressure (ICP) monitoring application. The pressure sensor was activated through wireless inductive near field powering. Measurement showed that there was significant effect on pressure readout accuracy due to small lateral misalignment between the inductively coupled antennas. In this article, we demonstrate that the structural properties of a simple 3D loop antenna help to overcome the pressure readout error caused by small lateral misalignment. We present the design procedure, simulation results and pressure readout measurement of the proposed 3D loop antenna. Moreover, the pressure monitoring system shows maximum improvement of 9 mmHg in pressure readout accuracy with proposed 3D loop antenna.

Original language	English
Journal	IEEE Transactions on Antennas and Propagation
DOIs	https://doi.org/10.1109/TAP.2017.2765818
Publication status	Published - 23 Oct 2017
Publication type	A1 Journal article-refereed

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10.1109/TAP.2017.2765818

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http://urn.fi/URN:NBN:fi:tty-201711102132

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title = "Characterization of 3D Loop Antenna to Overcome the Impact of Small Lateral Misalignment in Wirelessly Powered Intracranial Pressure Monitoring System",

abstract = "This paper presents a 3D loop antenna to overcome the impact of small lateral misalignment of the order of 2 mm between the inductively coupled antennas. This work is a continuation of our previously reported work. In our previous work, we have successfully activated the pressure monitoring sensor and performed the pressure readout for an intracranial pressure (ICP) monitoring application. The pressure sensor was activated through wireless inductive near field powering. Measurement showed that there was significant effect on pressure readout accuracy due to small lateral misalignment between the inductively coupled antennas. In this article, we demonstrate that the structural properties of a simple 3D loop antenna help to overcome the pressure readout error caused by small lateral misalignment. We present the design procedure, simulation results and pressure readout measurement of the proposed 3D loop antenna. Moreover, the pressure monitoring system shows maximum improvement of 9 mmHg in pressure readout accuracy with proposed 3D loop antenna.",

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AU - Khan, M. Waqas A.

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AU - Sydänheimo, Lauri

AU - Björninen, Toni

AU - Rahmat-Samii, Yahya

AU - Ukkonen, Leena

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Characterization of 3D Loop Antenna to Overcome the Impact of Small Lateral Misalignment in Wirelessly Powered Intracranial Pressure Monitoring System

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