Abbasi, M. I., Ismail, M. Y., Kamarudin, M. R. and Abbasi, Q. H. (2021) Reconfigurable reflectarray antenna: a comparison between design using pin diodes and liquid crystals. Wireless Communications and Mobile Computing, 2021, 2835638. (doi: 10.1155/2021/2835638)
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Abstract
This work presents the design and analysis of active reflectarray antennas with slot embedded patch element configurations within an -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 designs.
| Item Type: | Articles |
|---|---|
| Additional Information: | Research funding for this work is fully provided by the Ministry of Higher Education, Malaysia, under Best Project of Fundamental Research Grant Scheme (FRGS, VOT 0983), Prototype Research Grant Scheme (PRGS, VOT 0904), and Research Acculturation Collaborative Effort (RACE, VOT 1119). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Abbasi, Professor Qammer |
| Authors: | Abbasi, M. I., Ismail, M. Y., Kamarudin, M. R., and Abbasi, Q. H. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Wireless Communications and Mobile Computing |
| Publisher: | Hindawi |
| ISSN: | 1530-8669 |
| ISSN (Online): | 1530-8677 |
| Copyright Holders: | Copyright © 2021 Muhammad Inam Abbasi et al. |
| First Published: | First published in Wireless Communications and Mobile Computing 2021: 2835638 |
| Publisher Policy: | Reproduced under a Creative Commons licence |
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