REFLECTING MIRROR FOR ANTENNA, ANTENNA SYSTEM USING THE REFLECTING MIRROR, AND METHOD FOR DECIDING SURFACE SHAPE OF THE REFLECTING MIRROR

摘要

PROBLEM TO BE SOLVED: To attain a high data transmission capacity while sufficing decoupling between radiation for transmission and radiation for reception in the case of using a radiation beam for two-way transmission. SOLUTION: This reflecting mirror for an antenna to reflect an electromagnetic wave is shaped to have foci 10a, 10b apart from each other. Thus, e.g. electromagnetic radiation beams 5a, 5b with different frequencies or frequency bands emitted from radiation elements 4a, 4b placed apart from each other are emitted onto the reflecting mirror 1, which reflects them and directs the reflected beams to one common coverage area 3.