Optimization and Efficiency Improvement of Multiband PIFA Antenna System for 5G

Abstract

Numerous developments have been made in recent years to address the growing demand for antennas on portable terminals, starting with the shorted-circuit quarter wave antenna, also known as the Planar Inverted-F Antenna (PIFA). Along with their remarkable performances, these antennas' primary benefits are their compactness and low manufacturing costs. In this article, we'll provide a multiband PIFA design that adds a new frequency band and optimizes this antenna's performance by adjusting the same parameters of existing methods. Multiband PIFA antenna systems are particularly attractive for 5G systems as they can operate in the frequency bands allocated for 5G communications, which are typically in the millimeter-wave range. However, the design and optimization of multiband PIFA antenna systems for 5G can be challenging due to the need for high performance over a wide frequency range. . This thesis investigates the PIFA antenna and the role of periodic structures over the antenna to fulfil the fifth-generation (5G) requirements. An efficient system will be designed by paying close attention to the isolation between the antennas and the efficiency of the antenna system during the optimization phase. All simulation of proposed antenna will be done using Computer Simulation Technology (CST) software communication tools. Based on the results obtained PIFA multiband antenna has a maximum gain of 7.4 dBi and a directivity of 7.99 dBi. The VSWR and return loss value are found to be 1.09 and -25.6 dB, respectively. According to the investigation, the PIFA antenna is a clear choice for mobile applications because it is capable of delivering the highest performance levels.