Patent Number: 6,670,761

Title: Magnetron having straps of different materials to enhance structural stability

Abstract: Magnetron including a plurality of anode vanes each having notches of shapes different from each other in a top and a bottom, ring formed outer straps of copper each in contact to every other one of the anode vanes in top and bottom notches thereof to connect the anode vanes for forming an electrostatic field to the anode vanes, and ring formed inner straps of a material having a heat resistance higher than the anode vanes of copper and a thermal expansion coefficient similar to the anode vanes each in contact to every other one of the anode vanes in top and bottom notches thereof other than the anode vanes the outer straps are not in contact in concentric with the outer straps on an inner side thereof, thereby preventing deformation and breakage of the straps in advance to allow application to a higher powered magnetron.

Inventors: Lee; Yong Soo (Kyonggi-do, KR), Lee; Jong Soo (Kyonggi-do, KR)

Assignee: LG Electronics Inc.

International Classification: H01J 23/15 (20060101); H01J 23/22 (20060101); H01J 23/02 (20060101); H01J 23/16 (20060101); H01J 23/00 (20060101); H01J 023/22 ()

Expiration Date: 12/30/2020