Analysis of sectoral shaped ultra-wideband microstrip antennas

Analysis of ultra-wideband antenna for Sectoral shaped microstrip patch for angle increasing from 90° to 330°, for realized bandwidth and gain is presented. To optimize the individual patches, center or offset feed microstrip line is used. A bandwidth of around 15 GHz is obtained, in Sectoral patches with angle increasing from 90° to 180°, whereas for Sectoral patches with angles increasing from 210° to 270°, more than 16 GHz of bandwidth is obtained. Also for Sectoral angles more than 270° (300° and 330°), bandwidth of nearly 16 GHz is realized. The peak gain in ultra wide-band design increases with increase in Sectoral angle with maximum gain of more than 4 dBi is obtained in 300° and 330° Sectoral patches.