Home > Published Issues > 2023 > Volume 18, No. 5, May 2023 >
JCM 2023 Vol.18(5): 274-282
Doi: 10.12720/jcm.18.5.274-282

Switching Speed Analysis of MOSFET-Based Absorber Integrated Antenna for 5G/WiMAX/WLAN

Elliot O. Omoru and Viranjay M. Srivastava*
Department of Electronic Engineering, Howard College, University of KwaZulu-Natal, South Africa

Manuscript received July 14, 2022; revised October 11, 2022; accepted January 22, 2023.

Abstract—A block-by-block performance analysis of a novel Metal Oxide Semiconductor Field Effect Transistor (MOSFET)-based absorber antenna has been presented. The proposed integrated antenna is a solution to the negative effect of impedance mismatch between the power amplifier and antenna in the front end of communication systems. The clockwise diode base quasi circulator device used in the proposed design has been observed to have an insertion loss (S21 and S32) of 7 dB and 9.2 dB, respectively, with a return loss (S22) of 2.8 dB. The MOSFET-based absorber presented an insertion loss, return loss, and absorption efficiency of 2.75 dB, 3.3 dB, and > 90%, respectively. The switching speed for the proposed MOSFET-based absorber antenna model has been observed as 0.15 ns.

Keywords—absorber, antenna, pulse generator, circulator, solid-state electronics

Cite: Elliot O. Omoru and Viranjay M. Srivastava, "Switching Speed Analysis of MOSFET-Based Absorber
Integrated Antenna for 5G/WiMAX/WLAN," Journal of Communications vol. 18, no. 5, pp. 274-282, May 2023. Doi: 10.12720/jcm.18.5.274-282

Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.