| 摘要 |
PROBLEM TO BE SOLVED: To provide an array antenna which suppresses a siderobe level, is miniaturized and simplified while narrowing a beam width. SOLUTION: The array antenna has n (n≥2) pieces of reflection plates and n-pieces of antenna elements arranged in a first direction, wherein the reflection plates are each arranged in the first direction for each antenna element and the antenna elements are each arranged on the main reflection surface of each of the reflection plates. Also, the array antenna has n (n≥2) pieces of reflection plates and (m×n) pieces of antenna elements arranged in m (m≥2) rows and n-columns, wherein the reflection plates are each arranged in the first direction for each antenna element of each of the columns and the antenna elements of each of the columns are each arranged on the main reflection surface of each of the reflection plates. The reflection plates each have a bottom reflection plate configuring the main reflection surface and a side reflection plate, and a side reflection plate is shared between adjacent reflection plates. COPYRIGHT: (C)2007,JPO&INPIT
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