| 摘要 |
PURPOSE:To accommodate a large-sized high gain antenna into a radome of a prescribed size by providing the nearest point or cross point of plural turning shafts of the antenna to a front space to an antenna reflecting face. CONSTITUTION:A turning shaft ZZ' for azimuth angle and a turning shaft XX' for elevating angle are crossed at a point O. Then the turning shaft XX' of the azimuth angle is penetrated through a space in front of an antenna reflecting plane R where the main radiation is performed. Further, the antenna is so formed that the center point N of the maximum outer diameter QQ' of an antenna structure approaches the center O of the antenna rotation. As a result, the diameter of the antenna reflection plane R accommodated in the radome D is increased. Thus, the large-sized high gain antenna is accommodated in the radome of a prescribed size. |
