A New UHF Transceiver Antenna Design: Modified Folded Dipole

Wonje Lee¹, Daniel Sodickson¹, Graham Wiggins¹

The linear electric dipole antenna has been suggested in favor of its current distribution by electrodynamics, reporting potential benefits of better penetration depth and efficiency at 7T. However, it exhibits strong loading sensitivity when close proximity to the conductive object due to its open structure, which hampers applications in subject dependent body imaging. To aim for practical transceiver body array implementation at 7T, a new antenna design, calling modified folded dipole (mf-dipole) is presented. The evaluation of the proposed antenna exhibits less loading sensitivity, and favorable B1 patterns, proposing a solution for challenging 7T body imaging.