Analysis of reflectarrays using field symmetries

A new method to analyze reflectarrays with rectangular patches is proposed. While the standard procedure has been to calculate the electric currents on the patches using e.g. a periodic Green’s function or a Method of Moments approach, the present method calculates the magnetic currents in the gaps between the patches and subsequently determines the radiated field using Love’s equivalence theorem. Since the complete analysis can be expressed on closed, analytical form, the method is extremely fast and makes no implicit assumptions about periodicity.

Publication: 33rd ESA Antenna Workshop on Challenges for Space Antenna Systems
Place: ESTEC, Noordwijk, The Netherlands, 18-21 October 2011