DESIGN AND ANALYSIS OF SLOT LOADED RECTANGULAR PATCH ANTENNA FOR WIRELESS COMMUNICATION SYSTEM

A multiple-input multiple-output (MIMO) technique h as been considered one of the most promising techno logies to enhance the performance of wireless communication systems with high-speed transmission rates. A MIMO system utiliz ing several antenna components is more advantageous than a single-input single-output (SISO) system in terms of increasing channel capacity and reducing transmitting power. Conventional universal serial bus (USB) dongles are attractive for provid ing plug and- play functionality in mobile communication devices such as laptops. Future wireless USB dongles should be c apable of accommodating higher data rates than the current sy stems owing to the advent of various multimedia ser vices. Up to date,most MIMO antenna systems with more than two antennas ar e three-dimensional rather than planar. However,th e basic problem with the MIMO systems is the requirement of electrically small antennas which usually have several constrai nts. Hence,these antennas are considered in our project work. In this work the design,optimization,fabrication & testing of electrically small antennas suitable f or MIMO (multiple input multiple output) applications are presented. When t he transceiver uses more than one antenna,the ante nnas must be placed at least half of the carrier wavelength apart,in order to t ransmit/receive uncorrelated signals. Such antenna systems are required to fit within the hand-held (mobile) terminal which occupi es a small size (typically not more than 60x100 mm 2). Since antenna integration and miniaturization are two major chall enges in MIMO systems,we propose a slot loaded ele ctrically small rectangular patch antenna that operates in the 0.8G Hz to 2.6GHz band which is suitable for most of the commercial wireless applications. The antenna developed & tested here h as an operating frequency of 1.7GHz with impedance bandwidth of 105%,and the total size of 20x40 mm 2 . https://www.ijiert.org/paper-details?paper_id=14045