WAVEGUIDE, RADIO WAVE BLACK BOX AND ELECTROMAGNETIC WAVE TRANSMISSION RECEPTION TEST METHOD

摘要

PROBLEM TO BE SOLVED: To provide the small sized radio wave black box, waveguide and the electromagnetic wave reception test method by which a small sized device is tested one by one and in which lots of them are easily installed. ;SOLUTION: The black box has a waveguide whose wall face C along its propagation axis Z is made up of conductors and that has a propagation space S through which an electromagnetic wave is propagated from one-end side to the other-end side, and radio wave absorbing bodies 73, 74 mounted onto part of the wall face of the waveguide. The waveguide has the conductor wall face C forming the propagation space around the propagation axis Z at a cross sectional area perpendicular to the propagation axis Z and the radio wave absorbing bodies 73, 74 are arranged at least at positions, remote from the propagation axis in the propagation space formed radially.;COPYRIGHT: (C)1997,JPO