| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radar antenna capable of suppressing undesirable radiation and satisfying spurious specifications, by using the rotary joint of a pedestal portion without requiring a space for installing a filter. <P>SOLUTION: A spurious suppression filter (LPF) is formed in a coaxial tube on the center axis of the rotary joint. Moreover, by providing an insulator between an outer conductor and a center conductor in at least a portion of the coaxial tube where the spurious suppression filter is formed, it becomes possible to make a large power transmittable without causing a discharge between the outer conductor and the center conductor. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
