Abstract: A wideband slot loaded compact monopole antenna is proposed. Five slots with different shape are embedded on the modified radiating patch. The proposed antenna provides a wide usable fractional bandwidth of 122% (5.3 21.8 GHz). The designed antenna is extremely compact with overall size of 13.5 mm X 9 mm X 1.6 mm with a 50? feed line. Measured and simulated reflection coefficients vs. frequency plots are provided.

Keywords: Monopole antenna, wireless personal area network, ultra-wideband, rectangular patch.