Reflectarray to generate four adjacent beams per feed for multi-spot satellite antennas

Martínez de Rioja, Daniel and Martínez de Rioja, Eduardo and Encinar Garcinuño, Jose Antonio and Florencio Díaz, Rafael and Toso, Giovanni (2018). Reflectarray to generate four adjacent beams per feed for multi-spot satellite antennas. "IEEE Transactions on Antennas and Propagation", v. 67 (n. 2); pp. 1265-1269. ISSN 0018-926X. https://doi.org/10.1109/TAP.2018.2880117.

Description

Title: Reflectarray to generate four adjacent beams per feed for multi-spot satellite antennas
Author/s:
  • Martínez de Rioja, Daniel
  • Martínez de Rioja, Eduardo
  • Encinar Garcinuño, Jose Antonio
  • Florencio Díaz, Rafael
  • Toso, Giovanni
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Antennas and Propagation
Date: November 2018
ISSN: 0018-926X
Volume: 67
Subjects:
Freetext Keywords: Reflectarray; beam squint; coupled dipoles; multibeam antennas; satellite antennas
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This contribution describes a design concept of a reflectarray antenna to produce four adjacent beams per feed through the simultaneous use of polarization and frequency discrimination. The feed position is computed to produce two adjacent beams in different frequencies accounting for the beam squint effect, which ensures a minimum phase variation between the phase distributions at the two frequencies. The other two beams in orthogonal polarization are generated by implementing in the reflectarray a different phase-shift for each polarization. This contribution presents the design, manufacturing and measurement of a 43-cm demonstrator that operates at transmit frequencies in Ka-band. The proposed concept can be suitable for multiple spot beam satellites in Ka-band, enabling a reduction in the number of antennas and feeds needed to provide the multi-spot coverage.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2016- 75103-C2-1-RUnspecifiedUnspecifiedUnspecified
Madrid Regional GovernmentP2013/ICE-3000SPACERADAR-CMUnspecifiedUnspecified

More information

Item ID: 53671
DC Identifier: http://oa.upm.es/53671/
OAI Identifier: oai:oa.upm.es:53671
DOI: 10.1109/TAP.2018.2880117
Official URL: https://ieeexplore.ieee.org/document/8529238
Deposited by: Memoria Investigacion
Deposited on: 04 Mar 2019 17:54
Last Modified: 24 Apr 2019 11:23
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