| 摘要 |
[Problem] To provide an array antenna which enables efficient placement of antenna elements and side lobe suppression. [Solution] An antenna array 1 is provided with a substrate 2, a plurality of antenna elements 7a-7t, a master feed line 4, a plurality of slave feed lines 5a-5t, and a phase inversion unit 6a. The antenna elements 7a-7t are placed side by side in the longitudinal direction of the substrate 2. The slave feed lines 5a-5t are connected to the respective antenna elements 7a-7t from the longitudinal direction of the substrate 2, and connected to at least the antenna elements 7a, 7t placed at both ends from the center side of the substrate 2. The phase inversion unit 6a is placed at a position where the direction of connection of the slave feed line 5r, 5s to the antenna element 7r, 7s changes and between the antenna elements 7r, 7s adjacent to each other on the first end side from the center in the longitudinal direction of the substrate 2, and inverts the phase of transmitted radio waves. |
