2.45 GHz RFID reader array antenna with hexagonal geometry arrangement

In this paper, 2.45 GHz Radio Frequency Identification (RFID) reader antenna with hexagonal geometry is proposed to obtain a high gain directional pattern. The mittering technique is used at each junction of the transmission line to reduce the power loss. The parametric study is conducted to get the best dimension and position of all six elements of truncated patch antenna to operate at 2.45 GHz. The simulation and measurement readings of the antenna are compared. In conclusion, the performance of the designed antenna improves the referenced antenna in terms of gain and size. The measured gain is 9.0 dBi and the size of the designed antenna is about 37% smaller than the referenced antenna.