Electric heating – Microwave heating – Field modification
Patent
1994-05-24
1995-08-01
Leung, Philip H.
Electric heating
Microwave heating
Field modification
219746, H05B 672
Patent
active
054381835
ABSTRACT:
A microwave oven includes a cavity in which food is accommodated, a magnetron for generating microwaves, and a waveguide to supply microwaves generated from the magnetron into the cavity. The waveguide has substantially a truncated cone configuration in which the cross sectional area at the cavity side is greater than the cross sectional area at the magnetron side, and an output antenna of the magnetron is disposed to project from the bottom of the waveguide at the magnetron side into the inner space of the waveguide. The microwave oven further includes a flat radiation antenna fixed in the inner space of the waveguide around the output antenna of the magnetron while maintaining distances from the waveguide and the output antenna of the magnetron in which no spark is generated. Therefore, the radiation area for emitting the microwaves is increased significantly to improve heating nonuniformity within the cavity.
REFERENCES:
patent: 3436507 (1969-04-01), Puschner
patent: 3814890 (1974-06-01), Klemp et al.
patent: 4436973 (1984-03-01), Ikeda et al.
patent: 4496814 (1985-01-01), Fitzmayer
patent: 4849592 (1989-07-01), Claesson et al.
Fujii Hideo
Hayami Katsuaki
Konishi Chizuko
Kubo Kuniyasu
Omori Yoshiharu
Leung Philip H.
Sanyo Electric Co,. Ltd.
LandOfFree
Microwave oven including antenna for radiating microwave does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microwave oven including antenna for radiating microwave, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave oven including antenna for radiating microwave will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-734762