A novel circularly polarized dsrc band square microstrip antenna using minkowski fractal structure for vehicular communication

This paper proposes the design of a novel Minkowski circularly polarized square microstrip fractal antenna to operate within the full range of 75MHz DSRC band (Dedicated Short-Range CommunicationsIEEE 802.11p) with the center frequency at 5.9GHz for vehicle to vehicle communication purpose in an Intelligent Transport System (ITS). Compared to the conventional square patch, the use of Minkowski fractal reduces the overall area of the patch considerably at 5.9GHz with 7.4dBi Gain. More than 3dB Gain is maintained throughout a Bandwidth of 600MHz (5.6GHz to 6.2GHz). Axial Ratio of the antenna is also achieved below 3dB for the entire 267MHz Bandwidth from 5.73GHz to 6GHz.