A high gain dipole antenna system with reflective metal sheet

This study proposed a high gain dipole antenna system with reflective metal sheet. The structure of this system was simple. An antenna unit was composed of a symmetric trapezoid-shaped dipole antenna, and an antenna system was constructed by placing metal reflective metal sheet, which were formed on single-sided base plate (FR4), of the same structure with a certain spacing. The area of the antenna system was 43 × 10 mm². A 50 Ω copper coaxial cable was connected to the center of the antenna unit as the antenna feed. This system was designed specifically for WLAN applications. Having a frequency band of 2.4-2.485 GHz, the proposed antenna system had good directivity, and the gain was approximately 6.0-6.2 dBi.