Microwave applicator having a mechanical means for tuning

Details Microwave applicator having a mechanical means for tuning Microwave applicator having a mechanical means for tuning

1998-01-05

2000-02-01

Hoang, Tu Ba

Electric heating

Microwave heating

Waveguide applicator

219690, 219745, 219750, H05B 670

Patent

active

060205792

ABSTRACT:
A microwave applicator includes an elongated chamber, preferably having a cylindrical shape, for processing materials therein. A waveguide, connected to the elongated chamber, couples microwave power into the elongated chamber. The cross-sectional area of the elongated chamber can be mechanically adjusted to control and maintain the microwave field uniformity and resonant mode, preferably the length independent mode TM.sub.010, during the processing of the material. The applicator can thus provide microwave energy having a substantially uniform field distribution over a large area for processing materials in a non-continuous, semi-continuous or fully continuous manner.

REFERENCES:
patent: 3461261 (1969-08-01), Lewis et al.
patent: 4507588 (1985-03-01), Asmussen et al.
patent: 4585668 (1986-04-01), Asmussen et al.
patent: 4630566 (1986-12-01), Asmussen et al.
patent: 4727293 (1988-02-01), Asmussen et al.
patent: 4777336 (1988-10-01), Asmussen et al.
patent: 4792772 (1988-12-01), Asmussen et al.
patent: 5471037 (1995-11-01), Goethal et al.

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