Title :
Generation of OAM radio waves using circular time-switched array antenna
Author :
Tennant, Alan ; Allen, Ben
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
A circular time-switched array (TSA) is analysed and configured to radiate radio waves which correspond to the modes associated with orbital angular momentum (OAM) theory. Results are presented to show that the harmonic frequencies radiated by the circular TSA directly correspond to OAM modes of progressive order, including negative modes.
Keywords :
angular momentum theory; antenna arrays; radiowave propagation; OAM radio waves generation; circular time-switched array antenna; orbital angular momentum theory;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.2664
