Generation of limited-diffractive twisted pulses at millimeter waves

S.C. Pavone D. Comite W. Fuscaldo 1 G. Valerio 2 A. Galli M. Ettorre 1 M. Albani
1 IETR - Institut d'Electronique et de Télécommunications de Rennes
2 L2E - Laboratoire d'Electronique et Electromagnétisme
Abstract : In this paper, the generation of twisted pulses carrying orbital angular momentum is discussed. Such pulses are generated by polychromatic superposition of higher-order Bessel beams. The non-negligible effect of the wavenumber frequency-dispersion on the pulse propagation at millimeter waves is taken into account. Large operating bandwidths are required to synthesize spatially confined electromagnetic pulses. For this reason, a wideband Bessel-beam launcher is proposed, implementing an inward cylindrical traveling-wave aperture distribution with an azimuthal phase variation. Preliminary results clearly show the possibility of successful generation of twisted electromagnetic pulses at millimeter waves. © 2017 Euraap.
Keywords : electromagnetic pulses higher-order Bessel beams Near-field focusing orbital angular momentum (OAM)
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Conference papers
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01622473
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Submitted on : Tuesday, October 24, 2017 - 2:12:04 PM
Last modification on : Thursday, March 21, 2019 - 1:08:25 PM

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UNIV-RENNES1 | IETR | L2E | UNIV-NANTES | UR1-UFR-ISTIC | IETR-BEAMS | UPMC | UNIV-RENNES | INSA-GROUPE | SORBONNE-UNIVERSITE | SU-SCIENCES

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S.C. Pavone, D. Comite, W. Fuscaldo, G. Valerio, A. Galli, et al.. Generation of limited-diffractive twisted pulses at millimeter waves. 11th European Conference on Antennas and Propagation, EUCAP 2017, Mar 2017, Paris, France. ⟨10.23919/EuCAP.2017.7928311⟩. ⟨hal-01622473⟩

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