| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an active phased array antenna with which directivity is not degraded even when active elements are economized to 1/2 in the case of a scanning range within±10 deg. in a new structure as an automobile collision preventive radar or the like. SOLUTION: While utilizing the features of a single layer structure waveguide power feeding circuit, this antenna is constituted so as to incline the power feeding phases of two adjacent waveguides 5 and 5 between the power feeding points of an active element 13 without partitioning any power feeding waveguide 6. Even when the active elements 13 are economized by half, a phase error can be eliminated and the directivity similar to that of an ordinary array can be provided almost without being degraded.</p> |
