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Abstract #4104

B1 field flattening and length control of half-wave dipole antenna with discrete dielectric coating 

Aditya Ashok Bhosale1, Divya Gawande1, and Xiaoliang Zhang1
1Biomedical Engineering, University at Buffalo, Buffalo, NY, United States


This study presents a method for the B1 field flattening and length control of the half-wave dipole antenna for MR imaging with discrete dielectric material coating. To demonstrate this method, we designed a half-wave dipole antenna to operate at 300MHz, including coating the ends of the dipole conductors with a high dielectric material, serving as a way to control the dipole length and electromagnetic field distribution. We also compare the proposed technique with the conventional half-wave dipole antenna and show how the new technique effectively tunes the shorter half-wave dipole antennas at specific frequencies and produces efficient field distributions.

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