  We propose a multi-layer unit cell consisting of Minkowski fractal shaped
reflector with aperture coupled phasing stubs to obtain a broad phase range for
the reflectarray antenna with smaller unit cell size and inter-element spacing
compared to some other studies in the literature. In the study, simulations are
conducted using HFSS(TM) program with Floquet Port incidence. A unit cell with
two cycles of phase range and very low reflection loss is designed. 21.9%
shrinkage is achieved in patch surface area using Minkowski fractals.
Subsequently, proposed unit cell is used to design and fabricate a full scale
221 element reflectarray antenna. At 10 GHz, simulation results are compared
with measured data and good agreement is observed.
