Structure Design of Air-cooling High Power Solid-state Transmitter

The solid-state transmitter has high output power, high heat consumption and tough electromagnetic environment. A large number of personnel or engineers are involved in the processes of debugging, operation and maintenance. Therefore, the structure design should focus on two key issues of improving equipment reliability and improving user experience. The overall structure schemes of modularization and quick plugging are proposed in this paper. High power RF connectors are selected according to peak power, average power and shielding efficiency. Electromagnetic protections are carried out from both space shielding and energy absorption. The bus bars with laminated and flexible form are used for high current feeding. These methods and measures have solved the problems that the transmitter is easy to ignite during connection and is prone to electromagnetic interference due to its high output power. Under the condition that the thermal design meets the heat dissipation requirement, two dust removal methods of series dust collectors and closed loop control are also illustrated. The noise reduction measures of air-cooling transmitter are introduced from noise control of sound source, noise elimination and absorption during sound propagation process, and sound receiver protection.