Optimizing the Reflectarray Antennas's Bandwidth and Loss Performance

Abstract

In this paper, an investigation for the enhancement strategy of bandwidth performance and analysis of different types of losses associated with reflectarray antennas was carried out. Studies are carried out using different commercially available dielectric materials with dielectric permittivity values. The performance of different dielectric materials for the design of infinite reflectarray is analyzed in terms of bandwidth, reflection loss and Figure of Merit. It has been demonstrated that the reflection loss of the reflectarray antenna can be factorized into dielectric loss and conductor loss which depends on the material properties used for the design. Detailed numerical analysis and experiment was carried out and verified the method with results.