Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
'Analytical Expressions for the Evaluation of Gravity Distortion Impact on the Antenna Efficiency Applied to Large Antenna Uplink Arrays
Year:2017
Research Areas
  • Engineering,
  • Telecommunications
Information
Abstract
"We present analytical expressions for the evaluation of the antenna efficiency loss due to the gravity distortion on large reflector antennas from 6 to 35 m diameter at X and Ka bands with a lack of usual complexity. These analytical expressions can be used to evaluate the gain reduction versus the maximum deviation of the rim of the reflector due to the gravity distortion extending the model proposed by JPL to other antenna diameter in the range of 6 to 35 m. These expressions were compared with the empirical model for gravity evaluation presented by the Jet Propulsion Laboratory for the DSN antennas obtaining a good match between both models. This is useful to specify the maximum distortion due to the gravity for antenna system design level. For this, a five steps procedure is presented starting with the estimation of the antenna efficiency reduction based on the analytical expressions as a function of the maximum gravity distortion, the antenna size and frequency band and concluding with the estimation of the gain of a single antenna as a function of the elevation angle. The case study is focused on error analyses for large antenna uplink arrays at X and Ka band.
International
Si
JCR
No
Title
Iet Microwaves, Antennas & Propagation
ISBN
1751-8725
Impact factor JCR
Impact info
Volume
12
10.1049/iet-map.2016.0953
Journal number
5
From page
796
To page
803
Month
NOVIEMBRE
Ranking
Participants
  • Autor: Miguel Alejandro Salas Natera (UPM)
  • Autor: Ramon Martinez Rodriguez-Osorio (UPM)
  • Autor: Miguel Calvo Ramon (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Electromagnetismo Aplicado
  • Grupo de Investigación: Grupo de Radiación
  • Departamento: Señales, Sistemas y Radiocomunicaciones
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)