Apparatus for magnetic resonance imaging having a planar strip array antenna including systems and methods related thereto
US6771070B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jun 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Featured is a device for detecting electromagnetic signals, more specifically, the magnetic resonance signals from excited nuclei as well as related apparatuses, systems and methods. The detection device includes a planar strip array antenna including a plurality, and in more particular embodiments a multiplicity of parallel conductors (e.g., 4, 16, 32 or more of conductors). The length of the conductors is adjusted to substantially reduce the coupling of a signal in one conductor to an adjacent conductor(s). In a more specific embodiment the length is set so as to be equal to be about n&lgr;/4, where n is an integer≧1 and &lgr; is the wavelength of the signal to be detected (e.g., the wavelength corresponding to the NMR resonance frequency for the nuclei). The device also is configured so that the electromagnetic wave on each conductor is one of a standing wave or a traveling wave. Additionally, the device is configurable to provide broad band de-coupling by controlling a ratio of the spacing between conductors and the height of an encapsulation member so as to be less than or equal to a given value. Such a device can further include an EMF interference guard so as to isolate a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.