Design of compact loop-wire medium at radio frequencies for magnetic resonance imaging
(2006) Proceedings of the European Conference on Antennas and Propagation EuCAP 2006 — Location: Nice, France (6.June.2006)
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- Abstract
- In this paper we show how a loop wire medium can allow to tune the index of refraction of metamaterial. The principle and a equivalent circuit are presented in a first time. Then, in order to show the influence of the helix geometric parameters on the plasma frequency, simulations of loop wire medium based on the method of moments (MoM) are carried out. Comparisons with the classical wire medium show a decrease of the plasma frequency. In a second step, simulations of the loop wire medium, combined with a negative permeability structure are carried out, to show their influence on the negative index of refraction: extraction of the negative index of refraction shows a decrease of this one, in the presence of medium with high inductance.
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Citations
Radu, X., Massaoudi, S., Dancila, D., Huynen, I., & Craeye, C. (2006). Design of compact loop-wire medium at radio frequencies for magnetic resonance imaging. Proceedings of the European Conference on Antennas and Propagation EuCAP 2006, Nice, France. https://hdl.handle.net/2078.5/221715