| 摘要 |
PURPOSE:To suppress the influence of electromagnetic disturbing waves from the external by providing a radio equipment body case subjected to signal ground and an output waveguide in a frame ground enclosure. CONSTITUTION:A radio equipment body case 1 is subjected to signal ground SG. A frame ground enclosure 2 is provided to surround this body case 1 and is subjected to frame ground FG. An output waveguide 3is provided as the extension of the body case 1 and is subjected to signal ground SG therefore. This waveguide 3 is provided in the frame ground enclosure 2 and transmits radio waves through an aperture part 10 provided on the enclosure 2. Thus, the signal ground part is shielded approximately completely by the frame ground enclosure. Consequently, the influence of electromagnetic disturbing waves from the external is suppressed.
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