| 摘要 |
<p>A plurality of concentric array antennas of different radii are arranged on the same plane. Each concentric array antenna includes a plurality of antenna elements arranged in a circle. A majority of the concentric array antennas are arranged at regular intervals of d, whereas the other concentric array antennas are arranged at intervals of d ± (0. 4-0.6)d. The side lobe of a wide angle can be reduced by changing the radii of some of the concentric circles by ±0.4-0.6d.</p> |
