Abstract #3119
Evaluation of a modified passive clamp decoupling network at high frequencies
Chathura Kumaragamage 1,2 and Jamie Near 2,3
1
Biomedical Engineering, McGill University,
Montreal, Quebec, Canada,
2
The
Douglas Brain Imaging Centre, Montreal, Quebec, Canada,
3
McGill
University, Montreal, Quebec, Canada
The efficacy of receiver coils decoupling, using
clamping diodes on the Tx-line is investigated. We found
that signal transmission (S21) is degraded due to
impedance mismatching at high frequencies, when simple
cross diode shunting is used along the Tx-Line (~8%
power loss at 600MHz). A cross diode topology with an
added tank circuit was found to improve S21 (~2% power
loss at 600MHz). The modified cross diode topology
provides an efficient solution for passive decoupling at
high-frequencies that is remote to the coil, thus
providing a convenient and safe alternative to passive
decoupling networks mounted on the receiver coil
element.
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.
Click here for more information on becoming a member.
