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An investigation of millimeter wave reflectarrays for small satellite platforms

Ahmad, Ghulam, Brown, Tim W.C., Underwood, Craig I. and Loh, Tian H. (2018) An investigation of millimeter wave reflectarrays for small satellite platforms Acta Astronautica, 151. pp. 475-486.

An Investigation of Millimeter Wave Reflectarrays for Small Satellite Platforms.pdf - Accepted version Manuscript

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This article reports two contributions related to reflectarray antenna design at millimeter waves (mm-waves). First, a closed form analytical formulation is provided for the prediction of reflection properties of square/rectangular mm-waves reflectarray unit cells based on various quality factors and the theory of waveguide coupled resonators. To ensure a high accuracy at mm-waves, the effects of fringing fields, surface waves, metal conductivity, and metal surface roughness are included in the analysis. This analysis program greatly facilitates the parametric studies of a unit cell's constituting parameters to converge on an optimum design solution. Secondly, the concept of phase quantization is proposed for a cost effective realization of mm-waves reflectarrays. The developed formulation in the first contribution was used to design two 3 bit phase quantized, single layer, 19 wavelength, passive reflectarrays at 60 GHz. The test results are compared with simulations and a very good agreement was observed. These findings are potentially useful for the realization of high gain antennas for mm-wave inter-satellite links in small satellite platforms.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Brown, Tim
Underwood, Craig
Loh, Tian H.
Date : 22 June 2018
DOI : 10.1016/j.actaastro.2018.06.044
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Uncontrolled Keywords : Antenna; Reflectarray; Reflection loss; Satellite; Unit cell
Depositing User : Clive Harris
Date Deposited : 25 Jul 2018 09:37
Last Modified : 23 Jun 2019 02:08

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