In this communication, an orbital angular momentum (OAM) mode-reconfigurable antenna based on a uniform circular array (UCA) is presented. To realize multiple switchable operating states while ...

Access-restricted-item true Addeddate 2022-02-28 14:12:24 Associated-names Thomas, E. G. (Edwin George), 1937- Autocrop_version ...

Position and momentum operators 45 4. Eigenfunctions and eigenvalues of the momentum operator 48 5. Quantum description of systems 51 6. Commutativity of operators 52 7. Angular momentum 54 8. The ...

In this article, we propose a method based on the aperture antennas theory to understand the limitations of orbital angular momentum (OAM) antennas in far-field links. Additional insight is also given ...