Analysis of a uniform rectangular array for generation of arbitrary orbital angular momentum (OAM) modes. Issue 9 (1st May 2019)

• Record Type: Journal Article
• Authors: Cho, Y.H.; Byun, W.J.
• Is Part Of: Electronics letters. Volume 55:Issue 9(2019)
• Page Start: 503
• Page End: 504
• Publication Date: 2019-05-01
• Subjects: antenna theory -- antenna arrays -- aperture antennas -- Hankel transforms -- angular momentum -- antenna radiation patterns; URA configuration -- uniform circular array -- antenna gain -- uniform rectangular array -- arbitrary orbital angular momentum modes -- near‐field characteristics -- closed‐form weighting factors -- URA elements -- aperture antennas -- near‐field distributions -- radiation patterns -- array antenna theory -- high‐gain orbital angular momentum waves -- wide‐beamwidth orbital angular momentum waves -- Hankel transform -- beam‐scanning capability; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2019.0190
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Using the array antenna theory, theoretical radiation and near‐field characteristics of a uniform rectangular array (URA) for high‐gain or wide‐beamwidth orbital angular momentum waves have been rigorously studied. Closed‐form weighting factors of URA elements are derived based on the Hankel transform proposed for aperture antennas. Simulated radiation patterns and near‐field distributions show that a URA configuration is superior to a uniform circular array in terms of antenna gain, beamwidth, and beam‐scanning capability.