A Wideband Slot Antenna with Folded Parasitic Line for Multiple Band Operation

Anotace: The rectangular slot antenna with rectangular stub for a wide impedance bandwidth is proposed. In addition, the interference frequency band has been rejected by placing the folded parasitic line surrounding the rectangular stub of the presented antenna. The bidirectional radiation patterns are obtained at all operating frequencies. Also, the average gain of the presented antenna is approximately 3 dBi. The antenna properties such as return losses, radiation patterns and gains are evaluated via numerical simulation and measurement. The presented antenna can support the multiple band operation at frequency bands of 824 – 960 MHz and 1710 – 2485 MHz.