The Triple Feed Patch Antenna is a directional, circularly polarized antenna known for its good radiation efficiency. Unlike most FR4-based patches, which suffer from poor efficiency due to FR4’s high loss at 5.8 GHz, this antenna performs well. It has an excellent axial ratio, both directly perpendicular to the patch and off-center. Additionally, it is inexpensive and easy to manufacture with high accuracy, making it suitable even for hobbyists.
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