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Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems

1
Space Science Centre (ANGKASA), Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
2
Center of Advanced Electronics and Communication Engineering, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(7), 787; https://doi.org/10.3390/electronics8070787
Received: 3 May 2019 / Revised: 12 June 2019 / Accepted: 12 June 2019 / Published: 15 July 2019
(This article belongs to the Section Microwave and Wireless Communications)
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Abstract

A flexible antenna is a significant part of the new generation of wireless communication systems. Conventional antennas are typically fabricated on available FR-4 and RT/Duroid dielectric materials, where the dielectric constant cannot be selected arbitrarily and the degrees of freedom in designing the antenna are limited, whereas our flexible substrate offers moderate dielectric values by changing the concentration of the raw materials. Synthesised nickel particle-based flexible nickel aluminate (NiAl2O4) is utilized as a substrate material to make an effective antenna for microwave applications. The nickel aluminate substrate was made with 42% concentration of nickel, and has a dielectric constant of 4.979 and a thickness of 1 mm. The fabricated flexible antenna shows measured bandwidth from 6.50–8.85 GHz. On the other hand, the maximum measured gain and efficiency was 4.75 dBi and 91%, respectively. Finally, that antenna has directional radiation patterns and the presented antenna has a novelty where the nickel aluminate substrate was used for the first time. Thus the compactness of the antenna and its performance with a flexible nature makes it a worthy one to be used in the C-band application. View Full-Text
Keywords: compactness; flexible antenna; nickel aluminate (NiAl2O4) material compactness; flexible antenna; nickel aluminate (NiAl2O4) material
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Rahman, M.A.; Faruque, M.R.I.; Ahamed, E.; Islam, M.T.; Singh, M. Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems. Electronics 2019, 8, 787.

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