| 摘要 |
Provided is an explosion-proof enclosure that allows a radio circuit housed inside the explosion-proof enclosure to transmit/receive a high-frequency signal without installing any external antenna. The explosion-proof enclosure is equipped with a metal enclosure, a slit functioning as an explosion-proof gap that is formed to penetrate through a wall surface of the enclosure, and a cavity resonator having a built-in antenna that is provided inside the enclosure so as to transmit/receive the high-frequency signal using the slit as a waveguide. |
