DESIGN & DEVELOPMENT OF AN UWB MIMO SYSTEM FOR IOT APPLICATIONS
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Date
2026
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Publisher
National Institute of Technology, Silchar
Abstract
With the rapid growth of electronics in IoT field, there is need of system which has high data rate and has compact size.4-port MIMO system with UWB technology fulfils this demand and also provides solution for multi-path fading and high data rates. This thesis provides a complete solution for new electronics technology. It contains complete analysis of 4-port system including design, geometry, parametric optimization and re- sults. Proposed design of 4-port MIMO array has a size of 60 × 60 mm2.To enhance the bandwidth, two rectangular stubs added into the feedline and it successfully increase the bandwidth of 4-port design from 4.3 GHz to 7.8 GHz. Also, to maintain the iso-lation between all the antenna elements, an orthogonal arrangement is used. This tech-nique effectively suppressed electromagnetic coupling and maintain isolation without the need of any external decoupling structures. Simulation of this design demonstrates excellent diversity parameters includes ECC strictly below 0.005, diversity gain (DG) of 9.99 dB, TARC below -10dB and channel capacity loss (CCL) below 0.4 bps/Hz. These results proves that the proposed 4-port MIMO array offers broad-band matching, isola-tion and good diversity performance makes this system reliable for modern high speed UWB communication systems.