Dual-polarized microstrip antenna

摘要

A dual-polarized microstrip antenna includes: at least one metal radiating patch, i.e. a first metal radiating patch; at least one ground metal layer whereon excitation micro-slots are etched; at least one dielectric layer, i.e. a first dielectric layer it is preferred that the dielectric layer is a resonant dielectric layer such as a resonant dielectric layer of air or other layers of optimization resonant materials; at least one set of bipolar excitation microstrip lines; the dielectric layer is between the first metal radiating patch and the ground metal layer. The dual-polarized microstrip antenna of multi-layer radiation structure is designed in a relatively small volume, which effectively saves the cost of antenna installation and maintenance, and is widely applied in the fields of mobile communication and internet technology.

主权项

1. A dual-polarized microstrip antenna comprising:
at least a first metal radiating patch having a screw fixedly connected with a center thereof; at least one ground metal layer whereon excitation micro-slots are etched; at least a first dielectric layer, which is a resonant dielectric layer, wherein the dielectric layer is positioned between the first metal radiating patch and the ground metal layer, the first metal radiating patch is circular and the screw is in threaded connection with an antenna cover through an internal threaded hole in a center of the antenna cover; and at least one set of bipolar excitation microstrip lines, wherein the excitation micro-slots are two discretely vertical H-shaped excitation micro-slots with the same dimensions, that is, the two H-shaped excitation micro-slots are not in contact and the H-shaped excitation micro-slots are identical in dimensions so as to ensure that the dual-polarized antenna has consistent radiation performance optimization in the two polarization directions, and wherein angles between middle cross arms of the two H-shaped excitation micro-slots and an X-Y axis of the ground metal layer are ±45°.