| 摘要 |
PROBLEM TO BE SOLVED: To provide a circularly polarized wave antenna having high antenna gain.SOLUTION: The circularly polarized wave antenna comprises: a substrate having a first surface and a second surface; a power feeding element disposed on the first surface; a ground plane disposed on the second surface and having a hole; a tuning stub disposed on the second surface and connected to an edge side of the hole; and a cavity structure connected to the ground plane and configured so as to reflect an electromagnetic wave. |
