Low return loss slotted rectangular microstrip patch antenna at 2.4 GHz

In this paper, the design of a slotted rectangular microstrip patch antenna is reported which is suitable for high data rate application. The antenna is fed by a microstrip line designed for a frequency of 2.4 GHz. The designed antenna has inset feed over microstrip line feeding geometry. The dimension of the feed line is 7.64×14.89 mm. The microstrip antenna is designed over a FR4 epoxy substrate with dielectric constant, ε
_Γ
=4.4. The antenna is designed using high frequency structural simulator (HFSS) software with return loss of almost -40dB and VSWR 1 at 2.4 GHz providing a bandwidth of around 160 MHz.