Finite-Aperture Microwave Bessel Beams with Vortex Twisting, Fracturing, and Dynamic Phase-Shift Control

Date

2022-01-01

Author

Yurchenko, Vladimir
ÇİYDEM, MEHMET
Koç, Seyit Sencer

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—Finite-aperture microwave vortex beams of various structures in the near-, middle-, and far-field propagation zones have been simulated. The decay of external sidelobes leading to the end of non-diffractive propagation within a fraction of the near-field zone is observed. A ring source of the vortex beams with phase-shift and frequency-sweep control of angular modes and polarization patterns through the use of patch antenna arrays of varying polarization is suggested. A new form of the beam wavefront variation with azimuthal undulation has been proposed that allows one to significantly diversify and dynamically control the beam structure. The consequences of a limited number of antenna patches in a circular array have been considered. The effects of a gradual drop of radiation power along the array and the use of multiple feed points for improving the beams have been simulated.

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85137862186&origin=inward
https://hdl.handle.net/11511/101690

Journal

Progress In Electromagnetics Research C

DOI

https://doi.org/10.2528/pierc22071106

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

V. Yurchenko, M. ÇİYDEM, and S. S. Koç, “Finite-Aperture Microwave Bessel Beams with Vortex Twisting, Fracturing, and Dynamic Phase-Shift Control,” Progress In Electromagnetics Research C, vol. 124, pp. 53–68, 2022, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85137862186&origin=inward.