The feasibility of constructing the non-array volume RF coil using the coupled dipole antennas has been explored. The electromagnetic coupling among the dipoles is relatively weak and not readily to form a volume coil unless massive and dense dipoles are employed. An H-shaped dipole is proposed as the basic resonant elements to construct the ultrahigh field volume RF coil. The simulation and imaging experiment results show that the proposed H-shaped dipoles can achieve sufficient electromagnetic coupling with a much-reduced number of dipoles and form a volume coil with a practical coil length and uniform B1 fields in an efficient way.
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