November 27, 2019

SWI « Submillimetre Wave Instrument »

The SWI instrument is the JUICE mission’s heterodyne radiotelescope. Its science goals are to study the atmosphere of Jupiter and the atmospheres and exospheres of its Galilean moons.

SWI is a radiotelescope comprising two subsystems:

  • A Telescope Reception Unit (TRU) to point at target atmospheres
  • An Electronic Unit (EU) containing the frequency boosters and RF radiometers that will receive and compare radio data from the TRU

bpc_juice_swi.png

The French contribution to SWI covers the MDF frequency distribution module supplied by the LERMA astrophysical and atmospheric radiation and matter research laboratory, and the hyper-frequency components of the local oscillator chain, the 1.2-THz submillimetre chain and the 300-GHz doubler of the 600-GHz chain.