| 摘要 |
PROBLEM TO BE SOLVED: To obtain a reflection mirror antenna device capable of reducing the expansion of an image by controlling the thermal deformation of the reflection mirror antenna to form into a relatively simple pattern whose correction is easy and correcting generated thermal deformation with actuators. SOLUTION: This antenna device is constituted so that the surface deformation of a reflection mirror antanna 3 constituted by joining plural pieces of partial mirror materials whose magnitudes of average linear thermal expansion rates are preliminarily measureded each other is expanded into modes and correcting forces are calculated by selecting modes to be corrected in a prescribed order in order to make residual deformation equal or smaller than a preliminarily designated deformation amount and actuator are driven 5 based on these calculated correcting forces. |
