| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a data rate by eliminating an electrical movable contact point and improving the characteristics of a primary radiator, in an antenna device of a reflection mirror system in which azimuth scanning is executed with a rotary driving device. <P>SOLUTION: A plurality of offset reflection mirrors 11a-11c are arranged on a movable section 13b at a positions where the external circumference of the primary radiator 12 fixed on a fixing section 13a are equally divided, and the reflection mirrors 11a-11c rotate. With this configuration, the electrical movable contact point for transmitting/receiving an RF signal for the primary radiator 12 is eliminated, and deterioration is improved in antenna performance due to a shielded opening by the primary radiator 12. Further, the primary radiator 12 is made into a phased-array system to improve the data rate of all azimuths and an elevation angle direction by the plurality of reflection mirrors. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
