Abstract: Due to the existence of growth in development of low cost, less weight, highly reliable, minimal profile antennas for wireless devices, it poses a new challenge for the design of antenna in wireless communications. This paper presents designs and simulations of a circular micro strip patch antenna at 14 GHz for wireless communications that provides a radiation pattern and achieves different gains for different substrate materials. The circular micro strip patch antenna was analysed using Ansys HFSS and also made a comparision among the different substrates which shows different results based on same parameters.

Keywords: Microstrip patch antenna, Frequency, Gain, Beamwidth, HFSS, Wireless communication.