Electromagnetic shield structure in shielded section through waveguide, cable installation method to shielded section through waveguide

摘要

PROBLEM TO BE SOLVED: To easily perform installation of a waveguide in a shield compartment and insertion of a cable into the waveguide and to surely provide a required shield performance.SOLUTION: An electromagnetic shield structure comprises: a waveguide 13 which penetrates a compartment body 11 in a shield compartment 10 having electromagnetic shieldability and is formed from a conductive material; a plurality of plate bodies 21 laminated within the waveguide 13 and including a plurality of recessed grooves 22 continued in an axial direction of the waveguide 13, each of the plate bodies being formed from a conductive material; and cylindrical parts 30A and 30B which are formed from the recessed groove 22 that is formed in the lower plate body 21, and the upper plate body 21 between the plate bodies 21 positioned vertically to each other inside of the waveguide 13, and of which the inner shape dimension is made equal to or smaller than a 1/2 wavelength of a radio wave in an upper limit frequency of a shield object.SELECTED DRAWING: Figure 2