| 摘要 |
The purpose of the present invention is to provide a planar antenna capable of producing polarization diversity despite having a small size. A planar antenna according to the present invention is able to switch between transmitting/receiving radio waves using a first feeding point upon grounding a first side of a quadrilateral radiation plate and transmitting/receiving radio waves using a second feeding point upon grounding a second side orthogonal to the first side (see FIG. 1). |
