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Abstract #4103

A Dielectric Material Coated Half-Wave Dipole antenna for Ultrahigh Field MRI at 7T/300MHz

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


The potential of half-wave dipole antennas in MRI is primarily recognized. This study presents the dielectric material-coated half-wave dipole antenna design and compares it with the conventional half-wave dipole antenna. The design includes a high dielectric material coating around the length of each conductor. The dipole length primarily determines the resonant frequency of a dipole antenna; therefore, it is difficult to tune small half-wave dipole antennas less than 50 cm at 300MHz. Our design provides a solution to this problem and can tune smaller half-wave dipole antennas at 300MHz without meandering the dipole conductors.

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