| 摘要 |
<p>PROBLEM TO BE SOLVED: To enlarge an angular range observable in a neighboring area simply and in an advantageous method in cost. SOLUTION: At least one excitation element 312, 322 exists, and is directly connected to one of first excitation elements 311, 321, 331 in parallel so that both the excitation elements receive their signals from one same transmitting circuit commonly or supply their signals to the same receiving circuit commonly. The shoulder like curvature part of a main lobe is formed in the antenna diagram of a radar sensor, and an observable angular range is enlarged in a neighboring area with regard to the shoulder like curvature part.</p> |
