Some types of MRI transmit coils (e.g. Helmholtz coils) require equal currents in different coil elements. We present a novel feeding concept based on a passive RF current mirror, which ensures equal currents even if the loading and tuning of individual elements differ. Analytical equations are given for the dimensioning. It is demonstrated by simulations and experiments that the concept is viable, especially for ultra-high field imaging.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords