Memorias de investigación
Communications at congresses:
Dual-frequency Reflectarray Cells to Generate Closely Spaced Beams in Orthogonal Circular Polarization
Year:2019
Research Areas
  • Electronic technology and of the communications
Information
Abstract
A dual-frequency reflectarray cell is proposed in this work to provide a progressive phase shift of opposite sign in each circular polarization (CP), by applying a variable rotation technique (VRT). The proposed reflectarray cell consists of two symmetrical arcs printed on the top surface and two orthogonal sets of parallel dipoles printed on two levels of a grounded dielectric substrate. The arcs and dipoles are rotated independently to control the phase in CP at the lower (19.7 GHz) and higher (29.5 GHz) frequencies respectively. This reflectarray cell can be used to generate two adjacent beams in orthogonal CP per feed at transmission (Tx) and reception (Rx), in order to reduce the number of feeds and antennas required in current multi-spot satellites operating in Ka-band.
International
Si
Congress
ICEAA-IEEE APWC 2019,
730
Place
Granada, España
Reviewers
Si
ISBN/ISSN
9781728105642
Start Date
09/09/2019
End Date
13/09/2019
From page
694
To page
694
Actas ICEAA-IEEE APWC 2019, Granada, Spain, 9 ? 13 September 2019
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