| 摘要 |
PURPOSE:To improve the discriminating function of a target and the directivity function of incoming radar waves, by providing a waveguide mechanism made of two thin dielectric plates arranged in parallel for a reflection section of radar waves. CONSTITUTION:A reflector reflecting radar waves is provided with two ring shaped dielectric plates 12 arranged in parallel, a frustum of circular cone shaped reflecting plate 11 having conductive surface arranged to be coincident with the center axis of the plate 12 for the cone axis, and an electromagnetic wave reflecting block 14. The block 14 is constituted with a plurality of barriers 20 made of a material having conductive surface fixed vertically to the plate 12 and pillar barriers 21 and 22. The barrier 20 forms equal angles from the cone axis of the plate 11 radially. The barriers 21, 22 are made of cylinder member taking the cone axis as the center and having different diameter, and a resonance window 16 is made to the external barrier 21. A semiconductor diode 18 can be provided. |
