Observatorio de I+D+i UPM

Descripción
This contribution describes a design concept of a reflectarray antenna to produce four adjacent beams per feed through the simultaneous use of polarization and frequency discrimination. The feed position is computed to produce two adjacent beams in different frequencies accounting for the beam squint effect, which ensures a minimum phase variation between the phase distributions at the two frequencies. The other two beams in orthogonal polarization are generated by implementing in the reflectarray a different phase-shift for each polarization. This contribution presents the design, manufacturing and measurement of a 43-cm demonstrator that operates at transmit frequencies in Ka-band. The proposed concept can be suitable for multiple spot beam satellites in Ka-band, enabling a reduction in the number of antennas and feeds needed to provide the multi-spot coverage.
Internacional	Si
JCR del ISI	Si
Título de la revista	Ieee Transactions on Antennas And Propagation
ISSN	0018-926X
Factor de impacto JCR	4,13
Información de impacto	Datos JCR del año 2017
Volumen
DOI	10.1109/TAP.2018.2880117
Número de revista
Desde la página	1
Hasta la página	5
Mes	NOVIEMBRE
Ranking

Esta actividad pertenece a memorias de investigación

• Autor: Jose Daniel Martinez de Rioja Del Nido (UPM)
• Autor: Eduardo Maria Martinez de Rioja Del Nido (UPM)
• Autor: Jose Antonio Encinar Garcinuño (UPM)
• Autor: Rafael Florencio Díaz (UPM)
• Autor: Giovanni Toso (European Space Agency)

• 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