Abstract #1421

Reproducible and Miniaturized Bazooka RF Balun Using Printed Capacitor

Ming Lu^1,2, Ruilin Wang², Shuyang Chai^1,3, and Xinqiang Yan^1,3,4

¹Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States, ²College of Nuclear Equipment and Nuclear Engineering, Yantai University, Yantai, China, ³Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN, United States, ⁴Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, United States

Synopsis

Keywords: New Devices, New Devices

Motivation: The balun or cable trap circuits associated with the RF coil are favored to be miniaturized, light-weighting, and even flexible.

Goal(s): We proposed a reproducible and miniaturized Bazooka balun using printed coaxial capacitors.

Approach: EM simulations were performed to guide the practical fabrication. The miniaturized Bazooka balun is made of the double-layer printed circuit board, allowing mass manufacturing ability in practice.

Results: The extremely thin layer in the printed capacitor (25 micrometers) provides a large capacitance of tens of pF per centimeter and allows the total length to be much shorter.

Impact: This reproducible and miniaturized balun is ideal for flexible and wearable RF coil designs, enhancing patient comfort and MRI image quality in diagnosis.

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