In the present work an attempt has been made to design and simulation of rectangular microstrip double patch
antenna for X band using microstrip feed line techniques. HFSS High frequency simulator is used to analyse the proposed
antenna and simulated the result on the return loss, radiation pattern and gain of the proposed antenna. The antenna is able to
achieve in the range of 8-12 GHz for return loss of less than -10 dB. The operating frequency of the proposed antenna is 8.7
GHz with dielectric substrate, ARLON of = 2.5 and h= 1.6mm.