January 22, 2021
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Article

Multibeam reflectarrays in ka-band for efficient antenna farms onboard broadband communication satellites

Publicated to: SENSORS. 21 (1): 207-17 - 2021-01-01 21(1), DOI: 10.3390/s21010207

Authors:

Martinez-de-Rioja, D; Martinez-de-Rioja, E; Rodriguez-Vaqueiro, Y; Encinar, JA; Pino, A
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Affiliations

AtlantTIC - Author
Universidad Politécnica de Madrid - Author
Universidad Rey Juan Carlos - Author
‎ Univ Politecn Madrid, Informat Proc & Telecommun Ctr, Madrid 28040, Spain - Author
‎ Univ Rey Juan Carlos, Area Signal Theory & Commun, Madrid 28942, Spain - Author
‎ Univ Vigo, AtlanTT Res Ctr, Vigo 36310, Spain - Author
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Abstract

© 2021 by the authors. Licensee MDPI, Basel, Switzerland. Broadband communication satellites in Ka-band commonly use four reflector antennas to generate a multispot coverage. In this paper, four different multibeam antenna farms are proposed to generate the complete multispot coverage using only two multibeam reflectarrays, making it possible to halve the number of required antennas onboard the satellite. The proposed solutions include flat and curved reflectarrays with single or dual band operation, the operating principles of which have been experimentally validated. The designed multibeam reflectarrays for each antenna farm have been analyzed to evaluate their agreement with the antenna requirements for real satellite scenarios in Ka-band. The results show that the proposed configurations have the potential to reduce the number of antennas and feed-chains onboard the satellite, from four reflectors to two reflectarrays, enabling a significant reduction in cost, mass, and volume of the payload, which provides a considerable benefit for satellite operators.
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Keywords

Communication satellitesDual band reflectarraysKa-bandMultibeam antennasReflectarray antennas

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal SENSORS due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2021, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Instrumentation.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-26:

  • WoS: 11
  • Scopus: 9
  • Europe PMC: 3
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-26:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
    • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/94391/

    As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

    • Views: 18
    • Downloads: 4
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    Leadership analysis of institutional authors

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Martinez-De-Rioja D) .

    the author responsible for correspondence tasks has been Martinez-De-Rioja D.

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