Single polarization reflectarray design based on an element with seven parallel dipoles to generate independent beams in three frequency bands

Florencio Díaz, Rafael and Pérez Palomino, Gerardo and Encinar Garcinuño, José Antonio and Rodríguez Boix, Rafael (2018). Single polarization reflectarray design based on an element with seven parallel dipoles to generate independent beams in three frequency bands. In: "12th European Conference on Antennas and Propagation (EuCAP 2018)", 09/04/2018 - 13/04/2018, London, UK. pp. 1-5. https://doi.org/10.1049/cp.2018.0872.

Description

Title: Single polarization reflectarray design based on an element with seven parallel dipoles to generate independent beams in three frequency bands
Author/s:
  • Florencio Díaz, Rafael
  • Pérez Palomino, Gerardo
  • Encinar Garcinuño, José Antonio
  • Rodríguez Boix, Rafael
Item Type: Presentation at Congress or Conference (Article)
Event Title: 12th European Conference on Antennas and Propagation (EuCAP 2018)
Event Dates: 09/04/2018 - 13/04/2018
Event Location: London, UK
Title of Book: 12th European Conference on Antennas and Propagation (EuCAP 2018)
Date: 2018
Subjects:
Freetext Keywords: Reflectarrays; parallel edge-coupled dipoles; single polarization
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A single layer reflectarray element based on seven parallel dipoles is proposed for single polarization applications. The dipoles of the reflectarray element make it possible a multi-resonant behavior which provides very large phase range, while keeping low loss and low cross-polarization level. A sequential design process of a reflectarray antenna is proposed where the lengths of the dipoles are adjusted in pairs to provide the required phases which generate three independents beams at 20, 25 and 30 GHz. The simulated radiation patterns of the reflectarray antenna exhibit efficiencies of 80%, 62% and 52% at 20, 25 and 30 GHz respectively. The maximum cross-polar radiation obtained is 29.7 dB, 32.9 dB and 39.1 dB below the maximum of the co-polar beam at 20, 25 and 30 GHz respectively. Bandwidths of 14%, 8.2% and 4.3% are achieved at center frequencies of 20, 25 and 30 GHz respectively. These bandwidth results account for a +/-0.5° of deviation in the main beam direction, for 2dB-gain variations in the two first bands, and for a 3dB gain variation in the last band.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2016-75103-C2-1-RUnspecifiedUnspecifiedUnspecified

More information

Item ID: 53686
DC Identifier: http://oa.upm.es/53686/
OAI Identifier: oai:oa.upm.es:53686
DOI: 10.1049/cp.2018.0872
Official URL: https://ieeexplore.ieee.org/document/8568550
Deposited by: Memoria Investigacion
Deposited on: 04 Mar 2019 17:08
Last Modified: 04 Mar 2019 17:08
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