Magnetron

Abstract

To provide a magnetron capable of balancing cost reduction and effective suppression of high frequency components. A choke 30 is formed as a separated part from an output side metal sealing body 7. A Cu-plated metal layer 7C is formed on the metal sealing body 7, and a Sn-plated metal layer 30F which is cheaper and has a lower melting point than the Cu-plated part is formed on the choke 30. Thereby, in a brazing process, the tightly-adhered part of the Cu-plated part on the metal sealing body 7 and the Sn-plated part on the choke 30 is melted and becomes Cu-Sn alloy, and the choke 30 is joined to the metal sealing body 7 as firm as the case of using brazing materials. Thus, plating costs and brazing costs can be reduced; it enables to balance cost reduction and effective suppression of high frequency components in comparison with conventional magnetrons.

Dependencies are inferred from the claim text.