Substrate integrated waveguide based butterfly shaped slot antenna for WLAN/GIFI applications

In this paper, Proposes SIW based butterfly shaped slot antenna for 60GHz applications. This frequency is used for wireless communication applications. The proposed antenna is designed by using Rogers substrate with ε_r =2.2, height is 0.381 mm and the microstrip feed is used with the input impedance of 50ohms. The structure provides 3.05GHz impedance bandwidth in between 57-64 GHz band and matches with VSWR 2:1. The values of Reflection coefficient, Gain, transmission efficiency and radiation efficiency of proposed antenna at 60GHz are -25.383dB, 6.5dBi, 87%, 94% This frequency is also used for GIFI/WLAN Applications.