Transparent anode-based relativistic magnetron metamaterial beam wave interaction structure

The invention belongs to the technical field of microwave sources in the high-power microwave technology, and particularly relates to a relativistic magnetron metamaterial beam wave interaction structure based on a transparent anode. According to the relativistic magnetron, metamaterial design is carried out on a beam wave interaction structure of the relativistic magnetron, a traditional solid anode is replaced with a transparent anode, the relativistic magnetron can work below the cut-off frequency of the traditional beam wave interaction structure by introducing the double-negative characteristic, and under the same working performance requirement, the relativistic magnetron can work under the cut-off frequency of the traditional beam wave interaction structure. According to the metamaterial beam wave interaction structure based on the transparent anode, the transverse size of the relativistic magnetron can be remarkably reduced, then the size and the weight of an external magnet system are reduced, the li