Design and Implementation of Multiple-Input Multiple-Output (MIMO) Planar Inverted-F Antenna (PIFA) with Decoupling Technique for Mobile Terminals

Tan, Kai Ze (2026) Design and Implementation of Multiple-Input Multiple-Output (MIMO) Planar Inverted-F Antenna (PIFA) with Decoupling Technique for Mobile Terminals. Final Year Project (Bachelor), Tunku Abdul Rahman University of Management and Technology.

Text TAN KAI ZE_Full Text.pdf Restricted to Registered users only Download (2MB)

Abstract

This Final Year Project (FYP) 1 investigates the design and implementation of a Multiple-Input Multiple-Output (MIMO) Planar Inverted-F Antenna (PIFA) with an RC decoupling network for mobile terminal applications. The primary challenge addressed in this project is the mutual coupling between closely spaced antenna elements, which degrades the overall system performance in MIMO configurations. The objective of the project is to develop a compact PIFA antenna that operates effectively within the sub-1 GHz frequency bands, commonly used in mobile communication standards such as LTE and GSM. The RC decoupling network is introduced to minimize mutual coupling and improve isolation between the antenna elements. The design process involves using CST Studio Suite 2023 to model and simulate the antenna structure. Key parameters such as S-parameters, Envelope Correlation Coefficient (ECC), and radiation efficiency will be evaluated to assess the performance of the antenna with and without the decoupling network. Various adjustments will be made to optimize the antenna's impedance matching, bandwidth, and overall efficiency. The RC decoupling network is chosen due to its simplicity and effectiveness in mitigating mutual coupling, making it suitable for compact antenna designs required in modern mobile terminals. This project will also involve prototype fabrication, where a physical model of the antenna will be developed, and its performance will be validated through experimental measurements. The expected outcome is a highly efficient and compact MIMO antenna design that is optimized for sub-1 GHz mobile terminal applications, offering improved isolation and MIMO performance. The project contributes to advancing the development of more efficient antenna systems for future mobile communication technologies