Advances in reflectarrays and array lenses with electronic beam-forming capabilities are
enabling a host of new possibilities for these high-performance, low-cost antenna …

A detailed overview of various design methodologies and enabling technologies for beam-
scanning reflectarray antennas is presented in this article. Numerous advantages of …

A fully electronically reconfigurable 400-element transmitarray is studied numerically and
experimentally in X-band. The array operates in linear polarization and consists of 20× 20 …

Future satellite platforms and 5G millimeter wave systems require Electronically Steerable
Antennas (ESAs), which can be enabled by Microwave Liquid Crystal (MLC) technology …

The design, fabrication, and measured results are presented for a reconligurable reflectarray
antenna based on liquid crystals (LCs) which operates above 100 GHz. The antenna has …

A reconfigurable reflectarray which exploits the dielectric anisotropy of liquid crystals (LC)
has been designed to operate in the frequency range from 96 to 104 GHz. The unit cells are …

Ever since the advent of microwave technology, tunable devices, such as phase shifters,
resonators, and antennas, have been indispensable in applications requiring …

The electrically tunable properties of liquid-crystal fishnet metamaterials are theoretically
investigated in the terahertz spectrum. A nematic liquid crystal layer is introduced between …

This letter investigates a novel bandwidth improvement method, which combines the
multilayer approach with the subwavelength element technique. A new definition of phase …

The future adaptability of reflectarray antenna requires a thorough investigation of its main
conventional features for expected improvements. Its existing design featuring at microwave …