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Memorias de investigación
Communications at congresses:
Elimination of scan impedance anomalies in ultra-wide band phased arrays of differentially fed tapered slot antenna elements
Year:2008
Research Areas
  • Processing and signal analysis
Information
Abstract
Scan impedance anomalies are associated to phased arrays. There are different phenomena in order to explain these scan blindnesses produced when the array scans at one frequency and one angle. The most popular technique for eliminating these scan blindnesses is based on the use of electric walls in the grid of the two dimensional array. In this paper we present a dual polarized ultra-wide band array based on dasiabunny earspsila antennas from 0.3 GHz to 1 GHz which presents scan blindness. We analyze the cause of the anomaly and present a technique non based on electric walls in order to avoid the scan blindness with a small increase in the noise figure of the array.
International
Si
Congress
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
960
Place
San Diego (USA)
Reviewers
Si
ISBN/ISSN
978-1-4244-2041-4
Start Date
05/07/2008
End Date
11/07/2008
From page
1
To page
4
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Participants
  • Participante: Daniel Segovia Vargas (Universidad Carlos III de Madrid)
  • Participante: José Antonio López Fernández (Centro Astronómico de Yebes)
  • Autor: Vicente Gonzalez Posadas (UPM)
  • Participante: Luis Enrique García Muñoz (Universidad Carlos III de Madrid)
  • Participante: Eloy de Lera Acedo (Centro Astronómico de Yebes)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: DIEMAG: Desarrollo e Investigación Electromagnética
  • Departamento: Ingeniería Audiovisual y Comunicaciones
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