Nasir, M., Xia, Y., Sharif, A. B., Guo, G., Zhu, Q., Ur Rehman, M. and Abbasi, Q. H. (2022) A high gain embedded helix and dielectric rod antenna with low side lobe levels for iot applications. Sensors, 22(20), 7760. (doi: 10.3390/s22207760)
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Abstract
In this paper, a novel embedded helix dielectric rod antenna is presented for high gain radiation with circular polarization (CP) and low side lobe levels for IoT Applications. Different from the conventional dielectric rod antennas, this proposed antenna is an integrated structure that combines the advantages of the helix and dielectric rod antennas. The presented antenna mainly consists of three parts: a tapered helix as primary feeding for CP, a dielectric rod with printed loops embedded for higher directivity, and a dielectric rod end for improving the gain further. After studying and analyzing the working principles of each part, an optimum design operating at 8–9.7 GHz is carried out as an example. A prototype is also fabricated and tested. The measured results show that the prototype can provide 18.41 dB maximum gain within the length of 7.7 λ. The side lobe level is below −20 dB, and the axial ratio is better than 1.14 dB in the whole frequency band. Compared with the traditional helix antenna and dielectric rod antenna with the same electric length, the presented antenna has a higher gain with a lower side lobe level and with good polarization purity.
| Item Type: | Articles |
|---|---|
| Additional Information: | Funding: This work is supported in parts by Engineering and Physical Sciences Research Council (Grant no. EP/X525716/1). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Sharif, Dr Abu Bakar and Ur Rehman, Dr Masood and Abbasi, Professor Qammer |
| Authors: | Nasir, M., Xia, Y., Sharif, A. B., Guo, G., Zhu, Q., Ur Rehman, M., and Abbasi, Q. H. |
| College/School: | College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Sensors |
| Publisher: | MDPI |
| ISSN: | 1424-8220 |
| ISSN (Online): | 1424-8220 |
| Published Online: | 13 October 2022 |
| Copyright Holders: | Copyright © 2022 by the authors |
| First Published: | First published in Sensors 22(20): 7760 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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