Electromagnetic energy seal of a microwave oven

Details Electromagnetic energy seal of a microwave oven Electromagnetic energy seal of a microwave oven

1986-04-02

1987-10-13

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055R, 174 35R, H05B 676

Patent

active

047000341

ABSTRACT:
A microwave leakage shielding apparatus of microwave oven which can cut off the leakage of high-frequency electromagnetic wave as well as that of second harmonic. The slot antenna is installed in such a manner that a serial resonant circuit is provided within the attenuating cavity of the choke installed in the door of microwave oven. Also, the apparatus can reduce the thickness of door by performing the one-quarter impedance inversion in the nearer position then .lambda./4 through the serial resonant circuit, thereby enlarging the capacity of heating room.

REFERENCES:
patent: 4584447 (1986-04-01), Kusunoki et al.

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