Memorias de investigación
Communications at congresses:
Single polarization reflectarray design based on an element with seven parallel dipoles to generate independent beams in three frequency bands
Year:2018
Research Areas
  • Electronic technology and of the communications
Information
Abstract
A single layer reflectarray element based on seven parallel dipoles is proposed for single polarization applications. The dipoles of the reflectarray element make it possible a multi-resonant behavior which provides very large phase range, while keeping low loss and low cross-polarization level. A sequential design process of a reflectarray antenna is proposed where the lengths of the dipoles are adjusted in pairs to provide the required phases which generate three independents beams at 20, 25 and 30 GHz. The simulated radiation patterns of the reflectarray antenna exhibit efficiencies of 80%, 62% and 52% at 20, 25 and 30 GHz respectively. The maximum cross-polar radiation obtained is 29.7 dB, 32.9 dB and 39.1 dB below the maximum of the co-polar beam at 20, 25 and 30 GHz respectively. Bandwidths of 14%, 8.2% and 4.3% are achieved at center frequencies of 20, 25 and 30 GHz respectively. These bandwidth results account for a +/-0.5° of deviation in the main beam direction, for 2dB-gain variations in the two first bands, and for a 3dB gain variation in the last band.
International
Si
Congress
12th European Conference on Antennas and Propagation (EuCAP 2018)
960
Place
London, UK
Reviewers
Si
ISBN/ISSN
978-1-78561-816-1
10.1049/cp.2018.0872
Start Date
09/04/2018
End Date
13/04/2018
From page
1
To page
5
Single polarization reflectarray design based on an element with seven parallel dipoles to generate independent beams in three frequency bands
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Electromagnetismo Aplicado
  • Centro o Instituto I+D+i: Centro de I+d+i en Procesado de la Información y Telecomunicaciones
  • Departamento: Señales, Sistemas y Radiocomunicaciones