Ultra Wide Band Planar Inverted F Antenna Design

By incorporating a suspended metallic patch with two different slots and a shorting post as a support of suspension, an ultra wide band PIFA has been proposed which leads to an achievement of a gain greater than 11 dB in the operating frequency range 7.39–15.98 GHz with a ultra wide bandwidth of 8.53 GHz and over 95% fractional bandwidth. The width of the shorting post and the height of the patch from ground plane are optimised to 4 mm and 2 mm. respectively. The metallic patch is suspended above the ground plane with the help of the shorting pin. To secure a maximized return loss, the lumped port and the shorting post are placed at the edge. The rectangular and circular slot is optimally positioned on the patch for securing a high bandwidth.