Calibration of the JUICE RWI Antennas by Numerical Simulation - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Radio Science Year : 2021

Calibration of the JUICE RWI Antennas by Numerical Simulation

G. Fischer
  • Function : Author
M. Panchenko
  • Function : Author
W. Macher
  • Function : Author
Y. Kasaba
  • Function : Author
H. Misawa
  • Function : Author
M. Tokarz
  • Function : Author
L. Wisniewski
  • Function : Author
J. Bergman
  • Function : Author
J. -E. Wahlund
  • Function : Author

Abstract

The reception properties of the Radio Wave Instrument (RWI) onboard JUICE (Jupiter Icy Moons Explorer) have been determined using numerical methods applied to a mesh-grid model of the spacecraft. The RWI is part of the RPWI (Radio and Plasma Wave Investigation) and consists of three perpendicular dipoles mounted on a long boom. We determined their effective lengths vectors and capacitive impedances of 8-9 pF. We also investigated the change in effective antenna angles as a function of solar panel rotation and calculated the directivity of the antennas at higher frequencies up to the maximum frequency of 45 MHz of the receiver. We found that the RWI dipoles can be used for direction-finding with an accuracy of 2° up to a frequency of 1.5 MHz. Additionally we calculated the influence of strong pulses from the JUICE active radar on RPWI and found that they should do no harm to its sensors and receivers.
Fichier principal
Vignette du fichier
Radio Science - 2021 - Fischer - Calibration of the JUICE RWI Antennas by Numerical Simulation.pdf (3.23 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

insu-03713745 , version 1 (06-08-2022)

Licence

Copyright

Identifiers

Cite

G. Fischer, M. Panchenko, W. Macher, Y. Kasaba, H. Misawa, et al.. Calibration of the JUICE RWI Antennas by Numerical Simulation. Radio Science, 2021, 56, ⟨10.1029/2021RS007309⟩. ⟨insu-03713745⟩
62 View
38 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More