| 主权项 |
1. An antenna structure, comprising:
a substrate oriented in an azimuth plane; a first parasitic element formed on the substrate; a second parasitic element formed on the substrate; a first antenna coupled to the first parasitic element and extending from the substrate in a vertical direction, wherein the first antenna is to provide a first omni-directional radiation pattern in the azimuth plane for vertically polarized signals, wherein the first parasitic element comprises a ground plane of the first antenna; and a second antenna formed on the substrate and including a first radiating element, a second radiating element, the first parasitic element, and the second parasitic element, wherein the second antenna is to provide a second omni-directional radiation pattern in the azimuth plane for horizontally polarized signals shaped, at least in part, by the first and the second parasitic elements, and wherein the first and the second parasitic elements are electrically isolated from the first and the second radiating elements. |
