To solve the problem in which conventional measures to suppress heat deformation of an antenna to be mounted on an artificial satellite, including increasing rigidity by increasing the number of laminated antenna reflection mirrors and performing discrete spot bonding in bonding the antenna reflection mirror with a support structure, lead to an increase in mass of the antenna due to an increase in the number of laminated antenna reflection mirrors and an increase in manufacturing cost due to an increase in bonding work steps.
An antenna support structure having thermal expansion substantially equal to zero is preliminarily designed and manufactured, and this structure is used as a standard support structure. The use of this structure can reduce a difference in linear expansion coefficient between an antenna reflection mirror and the support structure, thereby suppressing heat deformation of an antenna regardless of conventional heat deformation measures.
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka