Meeting Banner
Abstract #1563

A switch matrix to enable passive cloaking of a metasurface resonator for MRI applications

Shimul Chandra Saha1,2, Roberto Pricci1,2, Maria Koutsoupidou1,3, Ditjoni Katana1, Srinivas Rana3, Helena Cano-Garcia1,2, Panagiotis Kosmas1,3, George Palikaras1,2, and Efthymios Kallos1,2

1Medical Wireless Sensing Ltd, London, United Kingdom, 2Metamaterial Technologies Inc., Dartmouth, NS, Canada, 3Department of Informatics, King's College London, London, United Kingdom

We present a switch matrix for automatic tuning and detuning of a metasurface-resonator employed to enhance MRI scanning performance. A digital circuit with an inductor was used to pick up the magnetic field and generate a clock for switching which does not require any wire connection to the MRI scanner. The clock was used to activate an array of MOSFET switches, each of them connected to an adjacent pair of parallel wires of the resonator. The circuit was tested using a solenoid and the metasurface resonance frequency was successfully tuned and detuned (cloaked) when the magnetic field was off-on respectively.

This abstract and the presentation materials are available to members only; a login is required.

Join Here