太赫兹准光回旋行波管注波互作用提升研究OA

Quasi optical waveguides suppress low order modes through diffraction losses and achieve their mode selection characteristics.This paper investigates the beam wave interaction of terahertz quasi optical cyclotron traveling wave tubes in response to the distribution of quasi optical waveguide fields.The method of improving the beam wave interaction efficiency of terahertz quasi optical cyclotron traveling wave tubes by using sector shaped electron beams is verified through numerical simulation.Numerical calculations have shown that using a fan-shaped electron beam can significantly improve the beam wave interaction efficiency of quasi optical cyclotron traveling wave tubes for the distribution of quasi optical waveguide fields.