Patent ID: 7688070
Filing Date: 2010-03-30
Classification: G01R

Abstract:
1. A drivable imaging coil comprising: a pair of end rings substantially centered around a common axis and spaced apart along the length of said axis; a pair of balun-less drive cables respectively coupled to said end rings; a central ring substantially centered around said axis so as to be parallel to and situated between said end rings; a plurality of legs coupled between said pair of end rings and said central ring; and a plurality of capacitor groupings coupled along said pair of end rings, wherein each of said capacitor groupings includes a plurality of capacitors with a group coverage area having a width that is greater than 5.0 cm; wherein each of said end rings has a radius that is greater than the radius of said central ring, and said central ring is grounded and has a low impedance such that said central ring is effectively shorted to ground when coupled to ground during operation of said imaging coil.