Proceedings of the 8th URSI-NG Annual Conference (URSI-NG 2024)

<Previous Article In Volume
Next Article In Volume>

Dynamical Optimization of L-band Quadrifillar Helical Antenna using CST for 5G and Space Satellite Broadcasting System Applications

Authors
Olufunke Janet Alao1, *, Adekunle Titus Adediji2, Joseph Sunday Ojo2, Theophilus Ewetumo2
1Satellite System Department, Radio Frequency and Microwaves Division, Center for Satellite Technology Development, National Space Research and Development Agency, Abuja, Nigeria
2Physics Department, Federal University of Technology, Akure, Nigeria
*Corresponding author. Email: alaoolu@rocketmail.com
Corresponding Author
Olufunke Janet Alao
Available Online 4 February 2025.
DOI
10.2991/978-94-6463-644-4_10How to use a DOI?
Keywords
Quadrifillar Helical Antenna; L-Band; and CST circular polarization
Abstract

An optimization of quadrifilar helical antenna is presented in this paper. The radiation characteristic is achieved by the geometry of the helices, the dimensions of the radiation is determined by the height and frequency of the operation. The antenna provides a gain of 2.8 dB at 1.5 GHz. An impedance bandwidth of more than 12% is observed at an acceptable return loss greater than -10 dB. The bandwidth, defined for an acceptable standing wave ratio at around 1.5, is about 5% across 1.2 GHz -1.8 GHz of L-Band. The antenna is fed by a single feed network with equal magnitude and 90° phase shift. The antenna final simulation obtains excellent circular polarisation, good gain greater than 3.5 dB at bore-sight, and good axial-ratio performance over a wide angular range for L-band. The optimized antenna will find applications in, low-altitude satellites, unmanned aerial vehicles, 5G mobile applications, mobile-satellite service (MSS), satellite navigation such as global position system (GPS), and global navigation satellite system (GLONASS),

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the 8th URSI-NG Annual Conference (URSI-NG 2024)
Series
Advances in Physics Research
Publication Date
4 February 2025
ISBN
978-94-6463-644-4
ISSN
2352-541X
DOI
10.2991/978-94-6463-644-4_10How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Olufunke Janet Alao
AU  - Adekunle Titus Adediji
AU  - Joseph Sunday Ojo
AU  - Theophilus Ewetumo
PY  - 2025
DA  - 2025/02/04
TI  - Dynamical Optimization of L-band Quadrifillar Helical Antenna using CST for 5G and Space Satellite Broadcasting System Applications
BT  - Proceedings of the 8th URSI-NG Annual Conference (URSI-NG 2024)
PB  - Atlantis Press
SP  - 103
EP  - 113
SN  - 2352-541X
UR  - https://doi.org/10.2991/978-94-6463-644-4_10
DO  - 10.2991/978-94-6463-644-4_10
ID  - Alao2025
ER  -