V-shaped slits and a slot loaded pentagonal boundary patch antennas for wideband applications

Modern defense and space systems need wideband antennas suitable for multi frequency operating bands. Two strip fed pentagonal boundary patch antennas, one with V-shaped slits and another with V-shaped slits and a pentagon slot is proposed in this paper. Both the antennas exhibit wideband characteristics covering wide range of frequencies from 2-6GHz. Inclusion of pentagon slot gives more bandwidth and good impedance match with an enhanced gain of 4.66dBi. The proposed pair of antennas are evaluated through surface current analysis and a parametric study is performed on slit dimensions to achieve broadband. DGS is incorporated to improve the bandwidth. Practical results of both the antennas are in close proximity to the simulated results.