Multifed Printed Reflectarray With Three Simultaneous Shaped Beams for LMDS Central Station Antenna

Arrebola, Manuel and Encinar Garcinuño, José Antonio and Barba Gea, Mariano (2008). Multifed Printed Reflectarray With Three Simultaneous Shaped Beams for LMDS Central Station Antenna. "IEEE Transactions on Antennas and Propagation", v. 56 (n. 6); pp. 1518-1527. ISSN 0018-926X. https://doi.org/10.1109/TAP.2008.923360.

Description

Title: Multifed Printed Reflectarray With Three Simultaneous Shaped Beams for LMDS Central Station Antenna
Author/s:
  • Arrebola, Manuel
  • Encinar Garcinuño, José Antonio
  • Barba Gea, Mariano
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Antennas and Propagation
Date: August 2008
Volume: 56
Subjects:
Freetext Keywords: Local multipoint distribution system (LMDS), multibeam antenna, multifeed reflectarray, reflectarray, shaped beam antenna
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electromagnetismo y Teoría de Circuitos [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A two-layer reflectarray is proposed as a central station antenna for a local multipoint distribution system (LMDS) in the 24.5-26.5 GHz band. The antenna produces three independent beams in an alternate linear polarization that are shaped both in azimuth (sectored) and in elevation (squared cosecant). The design process is divided into several stages. First, the positions of the three feeds are established as well as the antenna geometry to produce the three beams in the required directions. Second, the phase distribution on the reflectarray surface, which produces the required beam shaping, is synthesized. Third, the sizes of the printed stacked patches are adjusted so that the phase-shift introduced by them matches the synthesized phase distribution. Finally, the radiation patterns are computed for the central and lateral beams, showing a shaping close to the requirements. A breadboard has been manufactured and measured in an anechoic chamber, showing a good behavior, which validates the designing methodology.

More information

Item ID: 2757
DC Identifier: http://oa.upm.es/2757/
OAI Identifier: oai:oa.upm.es:2757
DOI: 10.1109/TAP.2008.923360
Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4538130
Deposited by: Archivo Digital UPM
Deposited on: 30 Mar 2010 05:53
Last Modified: 20 Apr 2016 12:25
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