| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the deterioration of a radio wave radiation characteristic due to the existence of a dielectric structure to support a sub-reflecting mirror in the conventional primary radiator for a reflector-type antenna device.SOLUTION: A primary radiator for an antenna device includes: a waveguide part having a coaxial waveguide; a reflecting mirror part disposed at a position opposite to one end of the waveguide and having a mirror surface for reflecting an electromagnetic wave; and a connection part for mechanically connecting the inner conductor of the waveguide to the mirror surface side of the reflecting mirror. The connection part is supported by the inner conductor, and the reflecting mirror part is supported by the connection part. |
