Design of Miniaturized and Dual-Band Slot Antenna for Wireless Communications

In this article, the use of a 50 Ω microstrip feed to simulate and evaluate the miniaturization and dual-band operation of slot antenna has been explored. The designed antenna achieves the functionality of a slot antenna without the need to extend the slot by introducing several slits. The utilization of several slits in the reference slot antenna results in a dual-band antenna with resonance occurring at 1.48 and 3.48 GHz for each respective frequency. The topology reduces the resonant frequency of the microstrip feed slot by 48.25% due to the presence of the various slits. The simulated efficiency stands at 79.58%, while the measured efficiency is 75.94%. The radiation patterns are examined, and the prototype validation is conducted by means of a simulation study focusing on the suggested antenna configuration.