Uniform microwave heating method and apparatus

Details Uniform microwave heating method and apparatus Uniform microwave heating method and apparatus

2007-04-24

2007-04-24

Leung, Philip H. (Department: 3742)

Electric heating

Microwave heating

Waveguide applicator

C219S746000, C219S750000, C219S747000, C333S230000

Reexamination Certificate

active

11504145

ABSTRACT:
A method and apparatus for creating uniform heating of an microwave absorptive target. A circularly polarized waveguide mode is created that promotes uniform heating of the microwave absorptive target by rotating a propagated non-uniform field pattern around a central axis of a cylindrical cavity or waveguide. In the process of rotating the field pattern, hot and cold spots in the field pattern are averaged out over time.

REFERENCES:
patent: 5008506 (1991-04-01), Asmussen et al.
patent: 5111111 (1992-05-01), Stevens et al.
patent: 5632921 (1997-05-01), Risman et al.
patent: 2003/0089707 (2003-05-01), Fagrell et al.

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