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

doi:10.1109/APUSNCURSINRSM.2018.8608844

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

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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.

Original language	English
Title of host publication	2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
Place of Publication	United States
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	2133-2134
Number of pages	2
ISBN (Electronic)	978-1-5386-7102-3
DOIs	https://doi.org/10.1109/APUSNCURSINRSM.2018.8608844
Publication status	Published - 14 Jan 2019
Event	2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting - The Westin Boston Waterfront Hotel, Boston, United States Duration: 8 Jul 2018 → 13 Jul 2018 https://2018apsursi.org/

Publication series

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

Conference

Conference	2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
Abbreviated title	APS/URSI 2018
Country/Territory	United States
City	Boston
Period	8/07/18 → 13/07/18
Internet address	https://2018apsursi.org/

Keywords

Microstrip antennas
Harmonic analysis
leaky wave antennas
Dispersion
method of moments
feeds

Access to Document

10.1109/APUSNCURSINRSM.2018.8608844

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). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/APUSNCURSINRSM.2018.8608844

Comite, Davide ; Podilchak, S. K. ; Baccarelli, Paolo et al. / 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. United States : Institute of Electrical and Electronics Engineers (IEEE), 2019. pp. 2133-2134 (IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting).

@inproceedings{a640714fb5514388b8d98527b71b9f53,

title = "Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna",

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.",

keywords = "Microstrip antennas, Harmonic analysis, leaky wave antennas, Dispersion, method of moments, feeds",

author = "Davide Comite and Podilchak, {S. K.} and Paolo Baccarelli and Paolo Burghignoli and Alessandro Galli and Freundorfer, {Alois P.} and Antar, {Yahia M. M.}",

note = "Acceptance date set to exclude from REF OA Policy; 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, APS/URSI 2018 ; Conference date: 08-07-2018 Through 13-07-2018",

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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, Institute of Electrical and Electronics Engineers (IEEE), United States, pp. 2133-2134, 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, Boston, Massachusetts, United States, 8/07/18. 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 et al.

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. United States : Institute of Electrical and Electronics Engineers (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 proceeding › Conference contribution

TY - GEN

T1 - Analysis and Design of a Circularly-Polarized Planar Leaky-Wave Antenna

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.

N1 - Acceptance date set to exclude from REF OA Policy

PY - 2019/1/14

Y1 - 2019/1/14

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.

KW - Microstrip antennas

KW - Harmonic analysis

KW - leaky wave antennas

KW - Dispersion

KW - method of moments

KW - feeds

U2 - 10.1109/APUSNCURSINRSM.2018.8608844

DO - 10.1109/APUSNCURSINRSM.2018.8608844

M3 - Conference contribution

T3 - IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

SP - 2133

EP - 2134

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

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - United States

T2 - 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

Y2 - 8 July 2018 through 13 July 2018

ER -

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. United States: Institute of Electrical and Electronics Engineers (IEEE). 2019. p. 2133-2134. (IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting). doi: 10.1109/APUSNCURSINRSM.2018.8608844

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

Abstract

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Keywords

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