Open Access

ARTICLE

Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

Hijab Zahra¹, Wahaj Abbas Awan², Niamat Hussain^3,*, Syed Muzahir Abbas^1,4, Subhas Mukhopadhyay¹

1 School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, 2109, Australia
2 Department of Integrated IT Engineering, Seoul National University of Science and Technology, Seoul, 01811, Korea
3 Department of Information and Communication Engineering, Chungbuk National University, Chungbuk, 28644, Korea
4 BENELEC, Botany, Sydney, NSW, 2019, Australia

* Corresponding Author: Niamat Hussain. Email:

(This article belongs to this Special Issue: Advances in 5G Antenna Designs and Systems)

Computers, Materials & Continua 2022, 70(1), 1935-1944. https://doi.org/10.32604/cmc.2022.019495

Received 15 April 2021; Accepted 24 May 2021; Issue published 07 September 2021

Abstract

This paper presents the design and characterization of a via free planar single turn helix for 28 GHz broadband applications. The proposed antenna is designed using ROGERS RO4003 material, having a simple structure and end-fire radiation pattern. The antenna comprises of a compact dimension of 1.36 λ₀ × 0.9 λ₀ with a thickness of 0.0189 λ₀ (where λ₀ is the free-space wavelength at the central frequency of 28 GHz). Parametric study has been carried out to investigate the impact of key design parameters and to achieve an optimum design. Results show a good agreement between the simulated and measured results. A single turn helical inspired antenna covers −10 dB impedance bandwidth of 26.25–30.14 GHz having a peak gain of 5.83 dB and radiation efficiency up to 85%. Moreover, linear array configurations with 2 and 4 elements have been analyzed for applications with higher gain and space constraints. Presented array configurations are suitable for applications having space constraints in one dimension. Results show that peak gain up to 8.2 dB and 11.1 dB can be achieved with 2 and 4 elements, respectively. Due to its simple planar and via free structure, this antenna is suitable for 5G communications and for sensing, imaging, IoT and tracking applications at 28 GHz band spectrum.

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