Patent ID: 7498815
Filing Date: 2009-03-03
Classification: G01R

Abstract:
1. An antenna array for magnetic resonance applications, comprising: at least one first conductor loop and one second conductor loop in which radio-frequency currents oscillate in respective current flow directions during antenna operation; said first conductor loop being divided into a plurality of first loop segments in the current flow direction thereof, and said second conductor loop being divided into second loop segments in the current flow direction thereof; said first loop segments being capacity coupled with each other by first capacitors, and said second loop segments being capacity coupled with each other by second capacitors; said first loop segments and said second loop segments each being formed as conductor traces of a circuit board, said circuit board comprising a first electrically insulating support layer and a second electrically insulating support layer, said first and second support layers abutting each other except where said conductor traces proceed between said first support layer and said second support layer; said first capacitors being formed by end regions of first loop segments that abut each other in the current flow direction of the first conductor loop, and the second capacitors being formed by end regions of second loop segments abutting each other in the current flow direction of the second conductor loop, said end regions forming said first capacitors respectively overlapping the end regions forming said second capacitors with exactly one of said first and second support layers between the overlapping end regions; and said first and second conductor loops crossing each other in intersection regions, with neither a first loop segment nor a second loop segment being between the first support layer and the second support layer in said intersection regions.