Authors: Rodriguez-Zamudio, J.; Martinez-Lopez, J. I.; Rodriguez-Cuevas, J.; Martynyuk, A. E.

Source: Electromagnetics, Volume 29, Number 6, August 2009 , pp. 463-482(20)

Publisher: Taylor and Francis Ltd

Abstract:

A full-wave mathematical model was developed to analyze the radiation characteristics of a spiraphase-type finite reflectarray based on ring slot resonators with stubs controlled by p-i-n diodes. The scanning characteristics of the finite 289-element reflectarray with optimized elements were calculated. According to the simulated characteristics, the optimized reflectarray provides electronic scanning in the XOZ-plane for elevation angles up to 30° with a total aperture efficiency better than 0.22. The characteristics obtained with the developed mathematical model were compared with the simulated characteristics obtained with the mathematical model of the infinite array.

Keywords: finite reflectarray; infinite reflectarray; phased arrays; ring slot resonator; spiraphase array; electromagnetic coupling

Document Type: Research article

DOI: http://dx.doi.org/10.1080/02726340903098373

Affiliations: 1: Division of Ingenieria Electrica (DIE), Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico (UNAM), Ciudad Universitaria, Mexico City, Mexico

Publication date: 2009-08-01

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