Design of alpha/numeric microstrip patch antenna for Wi-Fi applications

Abstract

The Microstrip Patch Antenna’s (MPA’s) find usability in several day to day applications. They hold several advantages like low-profile structure, low fabrication cost, and they support both circular as well as linear polarizations, etc. This paper proposes MPA for Wi-Fi applications where it is used within the 2.4 GHz range of frequencies (IEEE 802.11). Although various antenna designs are currently prevalent to support the existing systems, in-order to overcome the bandwidth limitations, Alpha-Numeric (Alphabets and Numbers) Microstrip Patch Antennas are proposed in this paper. The MPA’s are designed with 2.4 GHz as their resonant frequency. The simulation results based on the essential antenna performance analysis parameters like Return Loss, Gain, Radiated Power and Directivity are discussed. The antenna’s are designed with a thickness of 1.5 mm, height of 70 mm and width of 60 mm, the substrate material of the antenna’s is Flame Retardant 4 (FR4) and its relative permittivity is 4.4. The designs for all the Microstrip Patch Antennas are simulated using Advanced Design System 2009 (ADS) software.