FILTER FOR ELIMINATING NOISE OF MAGNETRON

摘要

PURPOSE: A filter for eliminating a noise magnetron is provided to satisfy EMI(electromagnetic interference) allowable standards of an entire bandwidth by providing a mixed core coupled with a ferrite core and an amorphus core within a dense-type winding unit. CONSTITUTION: A shielding box(40) is coupled to an input side of a magnetron. A condenser(41) is coupled to a cathode terminal connecting unit(42) of the magnetron and the shielding box(40). A dense-type winding unit(43) is composed of coils with a predetermined diameter winding thereto. A sparse-type winding unit(44) is spaced to the dense-type winding unit(43). A complex chock coil connects the terminal of the condenser(41) to the cathode terminal connecting unit(42) of the magnetron. A mixed core(45) is provided within the dense-type winding unit(43) of the complex chock coil and is coupled to a ferrite core and an amorphus core with a distribution rate of a mutual predetermined area.