Dummy load for a microwave dryer

Details Dummy load for a microwave dryer Dummy load for a microwave dryer

1993-11-30

1995-06-06

Leung, Philip H.

Electric heating

Microwave heating

Waveguide applicator

219695, 219696, 219759, 219692, 333 22F, 34259, H05B 670

Patent

active

054224632

ABSTRACT:
A matched or dummy load for a microwave dryer having a microwave generator and a microwave applicator. The matched load includes a waveguide having opposed broad walls, opposed narrow walls, and an end wall defining a waveguide chamber. A power absorbing body made of sintered silicon carbide, casted silicon carbide, or other materials is disposed in the waveguide chamber. One or more of the walls includes means for transferring heat from the power absorbing body. A housing or shroud having an inlet and an outlet surrounds the waveguide. The means for removing heat is disposed between the inlet and outlet of the housing so that a cooling medium passed through the housing removes heat from the power absorbing body. A tuning stub is placed in front of the power absorbing body to reduce microwave reflections.

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