Parametric Analysis of Multiple U Slot Microstrip Patch Antenna for Wireless Applications

Abstract

Antenna is device which is used to transmit and receive electromagnetic waves. It is important to have small antenna which can be useful for mobile applications. In order for antenna to be useful for mobile applications, it is necessary to have small size and antenna. Design and simulation has been carried out using HFSS simulation software. In this dissertation, slots have been cut on side of patch so as to obtain better characteristics; initially patch of length 30 mm is taken and analyzed using coaxial feed at (1, 13, 0).U slots cut in patch is having length of 6 mm and two mm wide. Two straight arms are surrounding it with dimensions of 1x 8 mm2. This u slot is repeated for four sides. . By cutting four u slots, antenna resonated at 4.6 GHz, 5.2 GHz and 7.4 GHz with return loss of -19.81 dB, - 11.10 dB and -18.1 dB with bandwidth of 200 MHz, 100 MHz and 800 MHz Parametric analysis had been done in terms of antenna parameters like substrate change, feed length, dimensions of patch and feed point variation.