This communication presents an improved design and implementation of a broadband circularly polarized antenna that features a size reduction, good axial-ratio bandwidth and good return loss bandwidth.

A dual-polarized antenna with a wide impedance bandwidth and high selectivity is presented for the use of 5G sub-6-GHz base stations. By strategically introducing a novel coupled dual-mode grid ...

Organic materials featuring circularly polarized luminescence (CPL) and/or afterglow emission represent an active research frontier with promising applications in various fields, but the achievement ...