The invention discloses a high-performance
electromagnetic shielding and heat dissipation device and an application method, and relates to the technical field of
electromagnetic shielding and heat dissipation, and the method comprises the steps: dividing a shielding body into a main shielding cavity and a shielding heat dissipation cavity through a partition plate; the main shielding cavity is internally provided with a sub-cavity, and the main shielding cavity and the sub-cavity are sealed by a double-layer cover plate; an
optical fiber outlet shielding body and a second
radio frequency through-wall connector are arranged on the main shielding cavity in a penetrating manner, the
optical fiber outlet shielding body is in
signal connection with the sub-cavity through an
optical fiber MPO
jumper wire and an optical
fiber in sequence, and the second
radio frequency through-wall connector is in
signal connection with the sub-cavity through the first
radio frequency through-wall connector; and the sub-cavities are connected through feed-through capacitors. According to the invention, high-performance
electromagnetic shielding is carried out by adopting various methods, the
electromagnetic interference of the
digital device on the
radio telescope is reduced, and the acquisition and
processing board card can be ensured to directly acquire the
radio frequency signal output by the
receiver, so that the fidelity of
signal acquisition and transmission is improved, meanwhile, the
digital device is cooled, and the stable work of the device is ensured.