A wideband circularly-polarized spiral antenna for Cube Sat Application

Mustafa, A. M. Ahmad and Mohamad, Sarah Yasmin and Abdul Malek, Norun Farihah and Mohd. Isa, Farah Nadia and Islam, Md. Rafiqul (2018) A wideband circularly-polarized spiral antenna for Cube Sat Application. Journal of Telecommunication, Electronic and Computer Engineering, 10 (1-8). pp. 17-20. ISSN 2180-1843 E-ISSN 2289-8131

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Abstract

In this paper, a wideband circularly-polarized spiral antenna is proposed to be used for CubeSat application. The antenna covers two of CubeSat frequencies; the S-band (2.2 GHz) and X-band (8 GHz). The proposed antenna belongs to the wideband and frequency-independent antenna category, which are known to provide a constant radiation pattern, impedance and polarization throughout the whole bandwidth. The performance of the spiral is compared in two different conditions; in free space and above a ground plane with a separation distance of λ/4 at the operating frequency of 2.2 GHz and 8 GHz. The spiral above the ground plane exhibits a unidirectional radiation and higher gain with an increase of 26.6% (2.2 GHz) to 34.6% (8 GHz) than the free space spiral. Moreover, the return loss also managed to stay within the ideal limit of S11<-10dB (-19.528 dB at 2.2 GHz, and -21.92 dB at 8 GHz) and exhibits circularly-polarized radiation with low axial ratio < 3 dB (0.78 dB at 2.2 GHz, and 0.89 dB at 8 GHz).

Item Type:	Article (Journal)
Additional Information:	7441/63993
Uncontrolled Keywords:	Circular Polarization; CubeSat; FrequencyIndependent Antennas; Spiral Antennas; Wideband Antennas.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr Sarah Yasmin Mohamad
Date Deposited:	31 May 2018 10:18
Last Modified:	22 Jul 2022 10:03
URI:	http://irep.iium.edu.my/id/eprint/63993

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