Dual-nuclear RF coil device and dual-nuclear RF coil array device

A dual-nuclear radio frequency (RF) coil array device, comprising a plurality of dual-nuclear RF coil devices arranged in an array, wherein each of the dual-nuclear RF coil devices comprises a first RF coil and a second RF coil:

• wherein the first RF coil is a loop structure and comprises at least one adjustment capacitor, the first RF coil is configured to generate a first magnetic field, and a direction of a primary magnetic field of the first magnetic field is a first direction;
• and
• the second RF coil comprises an electric dipole, and a tuning and matching circuit connected between two conductors of the electric dipole, wherein the second RF coil is configured to generate a second magnetic field, and a direction of a primary magnetic field of the second magnetic field is a second direction;
• the electric dipole is disposed in a center line of the first RF coil, and an insulating layer is disposed between the electric dipole and the first RF coil;
• and the first direction is perpendicular to the second direction.