We have been able to conclude that using an isotropic antenna, an RFID reader might achieve a read range of a few meters with 1 watt of output power. This configuration might be fine if RFID tags of ...

Flat optics based on patterned liquid crystals (LCs) has recently received extensive research interest. Comparing with dielectric metasurfaces which are usually fabricated by sophisticated lithography ...

Beam steering is an important factor in LIDAR, microscopy, telescopes, and optical wireless communications. In each of these areas, there is a need for a large sensing range using components with ...