Orbital Angular Momentum in Radio-A System Study
2010 (English)In: IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, E-ISSN 0096-1973, Vol. 58, no 2, 565-572 p.Article in journal (Refereed) Published
Recent discoveries concerning rotating (helical) phase fronts and orbital angular momentum (OAM) of laser beams are applied to radio frequencies and comprehensive simulations of a radio OAM system are performed. We find that with the use of vector field-sensing electric and magnetic triaxial antennas, it is possible to unambiguously estimate the OAM in radio beams by local measurements at a single point, assuming ideal (noiseless) conditions and that the beam axis is known. Furthermore, we show that conventional antenna pattern optimization methods can be applied to OAM-generating circular arrays to enhance their directivity.
Place, publisher, year, edition, pages
2010. Vol. 58, no 2, 565-572 p.
Directivity optimization, microwave orbital angular momentum, orbital angular momentum (OAM), radio orbital angular momentum, rotating phase fronts
IdentifiersURN: urn:nbn:se:uu:diva-138025DOI: 10.1109/TAP.2009.2037701ISI: 000274210700034OAI: oai:DiVA.org:uu-138025DiVA: diva2:378739