公开(公告)号：US09989600B2

公开(公告)日：2018-06-05

申请号：US14401008

申请日：2013-05-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Oliver Lips ,  Christoph Leussler

IPC: G01R33/34 ,  G01R33/3415 ,  G01R33/36 ,  G01R33/28 ,  G01R33/387 ,  G01R33/54 ,  G01R33/58

CPC classification number: G01R33/34 ,  G01R33/288 ,  G01R33/3415 ,  G01R33/3657 ,  G01R33/3664 ,  G01R33/387 ,  G01R33/543 ,  G01R33/583

Abstract: A feeding circuit arrangement (18) supplies a radio frequency signal to a plurality of coil elements (14) of a magnetic resonance coil system (12). The circuit arrangement (18) includes a main line (20) for connecting a radio frequency signal source (16); a plurality of feeding lines (22), each feeding line (22) for connecting a corresponding coil element (14) of the coil system (14); a power divider (24) arranged between the main line (20) and the plurality of feeding lines (22) for distributing the signal on the main line (20) to each of the feeding lines (22). At least one of the feeding lines (22) includes a controllable switching circuit (26) with a switching element (28) for connecting/disconnecting of two resulting line sections (30, 32) of the feeding line (22), a first line section (30) on the divider side and a second line section (32) on the side connectable to the coil element (14). The switching circuit (26) further includes at least one connectable termination element (44) for line termination of the first line section (30) or the main line (20) includes a circulator device (60) interconnected with a termination (62).