The design of a single-band singly-layered reflectarray fed by circularly polarized 2x2 microstrip patch antenna array with corporate feeding to be used in K-band (18.7–19.2 GHz) is proposed this paper. It demonstrated simulations and measurements that the axial ratio bandwidth performance depends strongly on polarization purity feeder. Simulated measured results revealed complete exhibits good...

A circularly polarized wideband reflectarray is presented using a monofilar single-turn helical antenna as reflecting element. An $11\times 11$ elements designed, simulated and measured in X-band which demonstrates wide bandwidth large-angle beam-scanning performance. Phase range of 360° obtained by rotating off-cen...

In this paper, we present a method for reducing the quantization lobe in 1-bit beam steering planar array antenna. The is inspired by reflectarray feeding such way that as move away from center of array, phase becomes more negative. This type element phasing disturbs periodicity error and therefore suppresses lobe. Each antenna has two states (0 180°) are provided through symmetrical points con...

A perfect anomalous reflector is designed by employing the receiving and scattering array antenna theory to optimize characteristics of a planar reflecting surface. For periodic reflectors with supercell consisting relatively few reactively loaded radiating elements, reflection amplitudes into propagating Floquet modes are controlled in an algebraic optimization load reactances, avoiding brute-...

Membrane reflectarray antennas with flexible support structures realize low weight and stowage volume. However, deformation of the membrane generally degrades antenna gain. We propose electrical misalignment compensation for 5.8-GHz-band by varactor diodes. Active reflection elements are composed a square patch diodes parameters characterized in waveguide. The results simulated measured charact...

The monochromatic aberrations produced by the phase distribution reflected by resonant sub-wavelength metallic structures are studied both analytically and numerically. Even for normal incidence, the angular dependence of the re-radiated wavefront disturbs the overall performance of the reflectarray. This effect is modelled as combination of a linear and a cubic dependence. A complete numerical...