Traditional methods of generating vortex beams based on metasurfaces consist mainly in
modulating propagation phase or geometric phase. Here, by introducing detour phase, we …

For many communication systems, including wireless networks, mobile, satellite, radar,
remote sensing, and many more applications, antenna arrays are very necessary. Utilizing …

Vortex beam, manifesting the characteristic helical phase front and amplitude singularity,
carries inherent orbital angular momentum (OAM) and has received intensive research from …

This article, as part of the special issue on characteristic modes (CMs), updates the recent
progress in develo** advanced multiple antenna systems based on CM analysis (CMA) …

Orbital angular momentum (OAM) generated by metasurface has recently drawn many
attentions. However, due to the hollow phenomenon in the direction of the OAM beam far …

Efficient generation of orbital angular momentum (OAM) modes is a key foundation for
electromagnetic vortex wave communications or radar applications. The usual OAM …

Recently, much attention has been paid to beams carrying orbital angular momentum (OAM)
for radio communication, which faces a great challenge of dynamic generation of OAM with …

Angular momentum (AM) multiplexing technique provides multiple information channels for
electromagnetic waves (EMWs) modulation at the same frequency, improving spectrum …

Antennas that generate orbital angular momentum (OAM) have the potential to significantly
enhance the channel capacity of upcoming wireless systems. This is because different OAM …

Using a single patch antenna to generate a vortex electromagnetic wave greatly simplifies
the application systems of orbital angular momentum (OAM) modes. OAM modes can be …