| 摘要 |
<p>A drawer type heating apparatus includes a heating case (11) forming a heating space, and an openable door (12) adapted to be moved in a drawing manner relative to the heating case (11) for opening and closing an opening portion, and includes a radio-wave transmission suppression portion (19) which is faced to inner wall surfaces of the opening portion of the heating case, and placed such that there is a predetermined gap between the radio-wave transmission suppression portion and the entire periphery of the inner wall surfaces of the opening portion in the heating case, in a state where the openable door is closed, the radio-wave transmission suppression portion including a first radio-wave-propagation-direction suppression-area (34A) constituted by a surface with a plurality of steps, and a second radio-wave-propagation-direction suppression-area (34B) having suppression protruding portions (31a, 131a) which are periodically formed and placed in such a way as to face the first radio-wave-propagation-direction suppression-area with a predetermined interval.</p> |
