When the field strength of MRI is increased to 14T, the capacitor values required to tune a conventional loop coil become extremely small. For 7T MRI, the circular dipole antenna has been introduced and evaluated as the array structure and new decoupling method. In this study, we modified a circular dipole antenna to a dual-tuned circuit by using an LC trap. The coil operates as a circular dipole antenna for the proton signal as the trap blocks 1H current and operates as a conventional loop at the X-nuclei frequency. The dual-tuned circular dipole antenna was evaluated up to 14T frequency.