Reconfigurable Reflectarray Antenna: A Comparison Between Design Using PIN Diodes And Liquid Crystals

Abbasi, Muhammad Inam and Ismail, Muhammad Yusof and Kamarudin, Muhammad Ramlee and Qammer, H. Abbasi (2021) Reconfigurable Reflectarray Antenna: A Comparison Between Design Using PIN Diodes And Liquid Crystals. Wireless Communications and Mobile Computing, 2021. pp. 1-8. ISSN 1530-8669

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Abstract

This work presents the design and analysis of active reflectarray antennas with slot embedded patch element configurations within an X-band frequency range. Two active reflectarray design technologies have been proposed by digital frequency switching using PIN diodes and analogue frequency tuning using liquid crystal-based substrates. A waveguide simulator has been used to perform scattering parameter measurements in order to practically compare the performance of reflectarray designed based on the two active design technologies. PIN diode-based active reflectarray unit cell design is shown to offer a frequency tunability of 0.36 GHz with a dynamic phase range of 226°. On the other hand, liquid crystal-based design provided slightly lower frequency tunability of 0.20 GHz with a dynamic phase range of 124°. Moreover, the higher reflection loss and slow frequency tuning are demonstrated to be the disadvantages of liquid crystal-based designs as compared to PIN diode-based active reflectarray design

Item Type:	Article
Uncontrolled Keywords:	Dual-band, antenna, superhigh frequencies
Divisions:	Faculty of Electrical and Electronic Engineering Technology
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	06 May 2022 11:04
Last Modified:	06 May 2022 11:04
URI:	http://eprints.utem.edu.my/id/eprint/25925
Statistic Details:	View Download Statistic

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