| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sector antenna which is capable of suppressing radiation of interference waves to a cover area of another sector antenna while maintaining a predetermined beam width.SOLUTION: The sector antenna comprises: a pair of dipole feeding elements 11 arranged in parallel at an interval on a plane A; a reflective plate 12 which has a reflecting surface R parallel to the plane A and reflects radio waves radiated from the pair of dipole feeding elements 11; and a pair of first passive elements 13 which are arranged in parallel on the same plane B parallel to the plane A so as to sandwich the pair of dipole feeding elements 11 between themselves and the reflective plate 12 and are separated from each other at an interval narrower than that between the pair of dipole feeding elements 11.</p> |
