Filter device for high frequency generating device

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Distributed parameter resonator-type magnetron

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315 3953, 333 79, 315 85, H01J 2550

Patent

active

041318242

ABSTRACT:
A magnetron includes a high frequency generating source having an anode and a cathode, two power supply conductors for supplying electric power to the cathode of the high frequency generating source, filter circuits inserted in the power supply conductors for damping and suppressing the high frequency components leaking through the power supply conductors and a shield box covering the two power supply conductors and two filter circuits. Each of the filter circuits includes a capacitor and a choke which is comprised of an coreless type inductor made of coreless coil and a core type inductor made of ferrite-cored coil. The coreless type inductors of two filter circuits connected to the respective different power supply conductors are different each other in inductance.

REFERENCES:
patent: 3732459 (1973-05-01), Oguro et al.
patent: 3846667 (1974-11-01), Hisada et al.
patent: 3859558 (1975-01-01), Harada et al.
patent: 3922612 (1975-11-01), Tashiro
patent: 3980975 (1976-09-01), Maxon, Jr. et al.

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