Metamaterial liners for high-field-strength traveling-wave magnetic resonance imaging
US9529062B2 · kind B2 · utility
5Cited by
11References
26Claims
0Family size
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Key dates
| Filing date | Feb 1, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Sep 6, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49016
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liner for a bore of a waveguide is provided. The liner as an aperture passing through it and is formed of a metamaterial that has a relative electrical permittivity that is negative and near zero. When the liner is installed in the waveguide, it lowers the cutoff frequency of the waveguide while allowing the waveguide to remain hollow. This liner can be used in the bore of an MRI machine to lower the cutoff frequency of the bore of the MRI machine to allow the MRI machine to operate using waves having a lower frequency that if the liner was not used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.