| 摘要 |
<p>The planer antenna includes: a linear radiating antenna element (1) to which electric power is to be supplied; and a plurality of linear parasitic antenna elements (2a, 2b; to which electric power is not to be supplied. The parasitic antenna elements (2a, 2b) are disposed at a position at which the radiating antenna element (1) and the parasitic antenna elements (2a, 2b) cross each other without direct contact. The parasitic antenna elements lying in a direction in which the radiating antenna element (1) and the parasitic antenna elements (2a, 2b) cross each other, and each of the crossing portions (12) of the plural parasitic antenna elements (2a, 2b), which portions cross the radiating antenna element (1), are bent in such a manner that the crossing portions (12) of the parasitic antenna elements (2a, 2b) are parallel with the radiating antenna element (1). As a result, it is possible to provide a planer antenna which can obtain a good circularlypolarized wave with a simple construction. In addition, the planar antenna can also be downsized.</p> |
