MICROWAVE TREATMENT APPARATUS

摘要

Microwave treatment apparatus (10) includes heating chamber (11) that accommodates object (7) to be heated, oscillation source (7) for oscillating microwave, and base (4) on which object (7) is placed in heating chamber (11), waveguide (6) for guiding the microwave below base (4), and cyclically structured unit (2) disposed in association with waveguide (6) for propagating the microwave in a surface-wave mode. Cyclically structured unit (2) has first region (2a) and second region (2b), and these two regions have impedances different from each other. The structure discussed above allows maintaining desirable characteristics of a surface waveguide proper to the waveguide that includes the cyclically structured unit.

主权项

1. A microwave treatment apparatus comprising:
a heating chamber accommodating an object to be heated; an oscillation source for oscillating a microwave; a base on which the object is to be placed in the heating chamber; a waveguide for guiding the microwave below the base; and a cyclically structured unit disposed in association with the waveguide for propagating the microwave in a surface-wave mode, wherein the cyclically structured unit has a first region and a second region, and an impedance of the first region is different from an impedance of the second region.