Design and analysis of ultra wide band planar monopole antenna
A novel two layered UWB antenna is proposed and designed to resonate at the full range of UWB frequencies' spectrums from 3.1 GHz up to 10.6 GHz, well below -14.0dB reference levels of return loss. The size of the UWB antenna is small, with width of 31.0 mm and length of 25.0 mm, and the two layers of FR4 board thickness are 0.5 mm (top layer) and 1.6 mm (bottom layer).The antenna radiates omni-directionally with different intensities at different directivities within the UWB frequency spectrums. The dual layered configuration gives the antenna additional options of being integrated with additional structures in order to perform a band rejection of a certain targeted band of frequencies, if required. The UWB antenna has also been fabricated using the same dimensions on a single layer 1.6 mm thick FR4 board and it still gives similar excellent performance.