Patent ID: 6288683
Filing Date: 2001-09-11
Classification: H01Q

Abstract:
An antenna mirror surface measuring/adjusting apparatus for measuring a mirror surface of a principal reflection mirror constructed of a group of a plurality of mirror surface panels, and adjusting the mirror panel, said apparatus comprising:a plane mirror larger than an aperture surface of said principal reflection mirror and set in parallel with the aperture surface;transmitting/receiving means for transmitting and receiving radio waves between said principal reflection mirror and said plane mirror;actuator means for driving said group of mirror surface panels of said principal reflection mirror; andan arithmetic processor for measuring, each time said actuator means shifts a position of said mirror surface panel from an initial state of said mirror surface panel of said principal reflection mirror, radio wave signals of radio waves which are radiated by said transmitting/receiving means and reflected back from said plane mirror, obtaining an aperture surface phase distribution in an initial state of said principal reflection mirror by executing an arithmetic process on these measured signals, then gaining configurations of the mirror surface on the basis of the aperture surface phase distribution, and adjusting the mirror surface by use of said actuator means in accordance with the thus obtained mirror surface configurations.