Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna

Davide Comite, S. K. Podilchak, Paolo Baccarelli, Paolo Burghignoli, Alessandro Galli, Alois P. Freundorfer, Yahia M. M. Antar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present the design and analysis of a K-band radially-periodic leaky-wave antenna radiating a circularly polarized broadside pencil beam. The structure is constituted by a metallic strip grating printed on top of a single-layer grounded dielectric slab, and is fed on the bottom by means of a square array of printed surface-wave launchers. The structure is optimized to support the fast n = -1 spatial harmonic, whose behavior has been accurately characterized through a full-wave dispersive analysis developed by means of an in-house method-of-moments (MoM) code. By proper phasing the four independent feeding points, linear or circularly polarized pencil beams can be obtained by exciting a dominant but weakly-attenuated, cylindrical TM leaky-wave mode. In this way, highly-directional broadside pencil beams showing good polarization purity can be obtained. The proposed design is of interest for modern satellite and terrestrial point-to-point communications.

LanguageEnglish
Title of host publication2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
PublisherIEEE
Pages2133-2134
Number of pages2
ISBN (Electronic)9781538671023
DOIs
Publication statusPublished - 14 Jan 2019

Publication series

NameIEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
PublisherIEEE
ISSN (Electronic)1947-1491

Fingerprint

pencil beams
antennas
Antennas
point to point communication
launchers
method of moments
extremely high frequencies
Method of moments
Surface waves
surface waves
strip
purity
slabs
Satellites
gratings
Polarization
harmonics
Communication
polarization

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation
  • Radiation

Cite this

Comite, D., Podilchak, S. K., Baccarelli, P., Burghignoli, P., Galli, A., Freundorfer, A. P., & Antar, Y. M. M. (2019). Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna. In 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting (pp. 2133-2134). (IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting). IEEE. https://doi.org/10.1109/APUSNCURSINRSM.2018.8608844
Comite, Davide ; Podilchak, S. K. ; Baccarelli, Paolo ; Burghignoli, Paolo ; Galli, Alessandro ; Freundorfer, Alois P. ; Antar, Yahia M. M. / Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna. 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2019. pp. 2133-2134 (IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting).
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abstract = "We present the design and analysis of a K-band radially-periodic leaky-wave antenna radiating a circularly polarized broadside pencil beam. The structure is constituted by a metallic strip grating printed on top of a single-layer grounded dielectric slab, and is fed on the bottom by means of a square array of printed surface-wave launchers. The structure is optimized to support the fast n = -1 spatial harmonic, whose behavior has been accurately characterized through a full-wave dispersive analysis developed by means of an in-house method-of-moments (MoM) code. By proper phasing the four independent feeding points, linear or circularly polarized pencil beams can be obtained by exciting a dominant but weakly-attenuated, cylindrical TM leaky-wave mode. In this way, highly-directional broadside pencil beams showing good polarization purity can be obtained. The proposed design is of interest for modern satellite and terrestrial point-to-point communications.",
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Comite, D, Podilchak, SK, Baccarelli, P, Burghignoli, P, Galli, A, Freundorfer, AP & Antar, YMM 2019, Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna. in 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, pp. 2133-2134. https://doi.org/10.1109/APUSNCURSINRSM.2018.8608844

Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna. / Comite, Davide; Podilchak, S. K.; Baccarelli, Paolo; Burghignoli, Paolo; Galli, Alessandro; Freundorfer, Alois P.; Antar, Yahia M. M.

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2019. p. 2133-2134 (IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Comite, Davide

AU - Podilchak, S. K.

AU - Baccarelli, Paolo

AU - Burghignoli, Paolo

AU - Galli, Alessandro

AU - Freundorfer, Alois P.

AU - Antar, Yahia M. M.

PY - 2019/1/14

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N2 - We present the design and analysis of a K-band radially-periodic leaky-wave antenna radiating a circularly polarized broadside pencil beam. The structure is constituted by a metallic strip grating printed on top of a single-layer grounded dielectric slab, and is fed on the bottom by means of a square array of printed surface-wave launchers. The structure is optimized to support the fast n = -1 spatial harmonic, whose behavior has been accurately characterized through a full-wave dispersive analysis developed by means of an in-house method-of-moments (MoM) code. By proper phasing the four independent feeding points, linear or circularly polarized pencil beams can be obtained by exciting a dominant but weakly-attenuated, cylindrical TM leaky-wave mode. In this way, highly-directional broadside pencil beams showing good polarization purity can be obtained. The proposed design is of interest for modern satellite and terrestrial point-to-point communications.

AB - We present the design and analysis of a K-band radially-periodic leaky-wave antenna radiating a circularly polarized broadside pencil beam. The structure is constituted by a metallic strip grating printed on top of a single-layer grounded dielectric slab, and is fed on the bottom by means of a square array of printed surface-wave launchers. The structure is optimized to support the fast n = -1 spatial harmonic, whose behavior has been accurately characterized through a full-wave dispersive analysis developed by means of an in-house method-of-moments (MoM) code. By proper phasing the four independent feeding points, linear or circularly polarized pencil beams can be obtained by exciting a dominant but weakly-attenuated, cylindrical TM leaky-wave mode. In this way, highly-directional broadside pencil beams showing good polarization purity can be obtained. The proposed design is of interest for modern satellite and terrestrial point-to-point communications.

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BT - 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

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Comite D, Podilchak SK, Baccarelli P, Burghignoli P, Galli A, Freundorfer AP et al. Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna. In 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE. 2019. p. 2133-2134. (IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting). https://doi.org/10.1109/APUSNCURSINRSM.2018.8608844