Abstract #1784
Design and development of general propose transmit-receive (TR) switch for a linear, quadrature and dual tuned coils
Bijaya Thapa 1 , Joshua Kaggie 1 , Nabraj Sapkota 1 , and Eun Kee Jeong 1,2
1
Dept. of Physics and Astronomy, Utah Center
for Advanced Imaging Research, University of Utah, Salt
Lake City, Utah, United States,
2
Dept.
of Radiology, Korea University, Seoul, Korea
TR switches are used to route high power RF pulses from
the RF amplifier to the coil during transmit and the low
power MR signal from the coil to the preamplifier during
receive. This work developed a custom TR switch with
high isolation that protected the preamplifiers from
large transmit power. In this study, we designed and
developed a TR switch with high isolation and low
insertion loss at low cost and reasonable development
time, that enabled both linear and quadrature modes for
a double frequency coil. The switch's performance was
comparable to a commercial TR switch.
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