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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 ¿bunny ears¿ 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
No
Congress
XXIII Simposium Nacional de la Unión Científica Internacional de Radio
960
Place
Madrid
Reviewers
Si
ISBN/ISSN
978-84-612-6290-8
Start Date
22/09/2008
End Date
24/09/2008
From page
63
To page
63
XXIII Simposium Nacional de la Unión Científica Internacional de Radio
Participants
  • Participante: Daniel Segovia Vargas (Universidad Carlos III de Madrid)
  • Participante: Jose Antonio Lòpez Fernández (Centro Astronómico de Yebes)
  • Autor: Vicente Gonzalez Posadas (UPM)
  • Participante: Luis Emilio García Castillo (Universidad Carlos III de Madrid)
  • Participante: Eloy de Lera Acedo (University of Cambridge)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: DIEMAG: Desarrollo e Investigación Electromagnética
  • Departamento: Ingeniería Audiovisual y Comunicaciones
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