REFLECTION BOARD

• Main Authors: NAKAMURA ATSUO, KONO SHIGEKI, MIYAZAKI YUICHI, MAEDA HIROMI
• Format: Patent
• Language: English; Japanese
• Published: 19.06.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

To provide a reflection board which can reduce a manufacturing cost.SOLUTION: A reflection board 1 that reflects an electromagnetic wave of a specified frequency band to a direction different from a specular direction, includes an uneven structure in which a plurality of unit structures 10 including a thickness distribution where a thickness is increased to a predetermined direction is arranged. The unit structure 10 includes a plurality of cell regions 11a to 11f each having a different thickness, at least includes a first unit structure having two or more cell regions each having a different thickness as a unit structure, and includes a conductive layer 3 on a surface on each uneven structure side. Both of the adjacent cell regions are conducted.SELECTED DRAWING: Figure 1 【課題】製造コストの削減可能な反射板を提供する。【解決手段】特定の周波数帯の電磁波を正反射方向とは異なる方向に反射する反射板１であって、所定の方向に厚さが増加する厚さ分布を有する単位構造１０が複数配置された凹凸構造を有する。単位構造１０は、厚さの異なる複数のセル領域１１ａ～１１ｆを有し、単位構造として、厚さの異なる２つ以上のセル領域を有する第１の単位構造を少なくとも有し、凹凸構造側の面に導電層３を有し、隣接するセル領域同士が導通している。【選択図】図１