Design and analysis of wideband ultra high speed data transmissible 5g antenna for wireless applications

Abstract

This research work focuses on antenna design, so the operational frequency spectrum is the main topic of interest in this research work. The operational frequency range of an antenna can be improved by some conventional methods like- the use of (i) dielectric resonator antenna, (ii) higher substrate height, (iii) partial ground plane, and (iv) material with low dielectric constant. But all of these methods have some drawbacks from the point of view of the application in handheld devices. This motivates the proposed research work to develop some alternative techniques for increasing the operational frequency range of the antenna and to make them suitable for handheld devices. In the preliminary section, an antenna with a U-Slot is designed to generate a wider bandwidth. The antenna with U-Slot covers the 5G frequency bands of n257, n258 and n261, with a peak gain of 11.61 dB, the radiation efficiency of 92%, the bandwidth of 4.54 and maximum data transmission rate of 20.24 Gbps. To achieve more wider spectrum and stable gain within the band of interest a new antenna with the utilization of Flame structure is proposed in the next work. newlineIn this section, a multiband Y-shaped antenna that can be used for IoT-enabled 5G applications is presented. The antenna with Y-Shape has a bandwidth of 5.06 GHz, covers 5G licensed bands n257, n258, n259, and n260, a gain of more than 4.9 dB, radiation efficiency of 81%, and (VSWR) lt 2, within the bandwidth of interest, making it a viable option for 5G applications. The designed Y-shaped antenna is able to offer data transmission at the rate of 22.55 Gbps. newlineAlthough the antenna of Y-Shape with flame structure is capable of generating a wider spectrum and much faster data transmission than the antenna with U -Slot the peak gain obtained from the designed Y-Shape antenna is lower in view of IoT-based applications. That is why the third antenna is proposed to generate a wider spectrum than the other two antennas and an even gain within the desired band of interest.