| 主权项 |
1. A patch antenna comprising:
a dielectric substrate having a body that extends a thickness from a first side to a second side that is opposite the first side, the body of the substrate having a perimeter that is defined by at least one side wall that extends along the thickness of the substrate from the first side to the second side, wherein the body of the substrate has a dielectric constant that is greater than the dielectric constant of air; a radiating patch positioned on the first side of the body of the substrate; a ground plane positioned on the second side of the body of the substrate; and at least three feed probes electromagnetically coupled to the radiating patch such that the patch antenna is configured to generate a circularly polarized radiation pattern, wherein the feed probes are positioned relative to the body of the substrate such that adjacent feed probes are spaced apart from each other along the body, the feed probes being configured to feed the radiating patch at at least three points with approximately equal power amplitude, wherein the substrate comprises electrically conductive strips positioned on the at least one side wall of the body, wherein the feed probes comprise approximately straight pins that are positioned around the perimeter of the body of the substrate, wherein the straight pins are electrically connected to the corresponding electrically conductive strips and extend lengths along the thickness of the body. |
