Design of a broadband circular polarized antenna

In this paper, a broadband circular polarized antenna with operating frequency at 2.4GHz is proposed. The antennas are designed by using L-probe amendment with inverted patch by using suspended rectangular microstrip antenna (MSA) technique to improve the bandwidth until more than 200MHz. The characteristics of the antenna are analyzed, so that the antenna meets broadband operations at operating frequency of 2.4GHz with return loss less than -10dB. The broadband circular polarized antenna had been designed and simulated by using Computer Simulation Technology (CST) software.