US 11,842,878 B2
Injection-locked magnetron system based on filament injection
Changjun Liu, Chengdu (CN); Shaoyue Wang, Chengdu (CN); and Liping Yan, Chengdu (CN)
Assigned to Sichuan University, Chengdu (CN)
Filed by Sichuan University, Chengdu (CN)
Filed on Dec. 13, 2022, as Appl. No. 18/079,969.
Claims priority of application No. 202111539440.0 (CN), filed on Dec. 15, 2021.
Prior Publication US 2023/0187164 A1, Jun. 15, 2023
Int. Cl. H01J 25/50 (2006.01); H01J 23/38 (2006.01)
CPC H01J 25/50 (2013.01) [H01J 23/38 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An injection-locked magnetron system based on filament injection, comprising a magnetron, an injection antenna, an excitation cavity, and a load; wherein the magnetron is installed on the excitation cavity and connected to the excitation cavity, the excitation cavity is detachably connected to the load, the magnetron is provided with an antenna for external communication, and the antenna for external communication is configured to couple an injected external signal into the magnetron for realizing injection locking; the magnetron comprises a magnetron filament, a magnetron filament cavity, the injection antenna, a magnetron resonant cavity, and a magnetron power supply terminal; the magnetron power supply terminal and the injection antenna are installed outside the magnetron filament cavity; the magnetron filament cavity is provided with a through hole through which the injection antenna penetrates, the injection antenna is configured to extend into the magnetron filament cavity through the through hole, and a feed terminal of the magnetron filament is arranged in the magnetron filament cavity; and an output microwave of the magnetron is output through the excitation cavity, and passes through a waveguide directional coupler, and is finally absorbed by the load.