Patent ID: 9082579
Filing Date: 2015-07-14
Classification: B81B,B81C,H01J

Abstract:
1. An electromagnetic wave oscillator comprising: a first waveguide which has a folded structure such that a path traveled by an electromagnetic wave through the first waveguide crosses an axial direction a plurality of times; an electron beam tunnel through which an electron beam passes, wherein the electron beam tunnel extends along the axial direction; and at least one auxiliary tunnel which extends parallel to the electron beam tunnel; and a second waveguide comprising a first end connected to the first waveguide and a second end comprising an electromagnetic wave output port, wherein the first waveguide includes a plurality of parallel barrier ribs arranged along the axial direction, each barrier rib of the plurality of barrier ribs being interdigitated with other adjacent barrier ribs of the plurality of barrier ribs such that the plurality of barrier ribs are alternately disposed in opposite directions, and wherein the second waveguide has a tapered structure in which a width of the second waveguide increases from the first end to the second end thereof.