Planck-LFI CPV: Drain currents verification after HYM Tuning
Date Issued
2009
Author(s)
•
•
•
GREGORIO, Anna
•
Leonardi. Rodrigo
•
Meinhold, Peter
•
•
Tomasi, Maurizio
•
•
Davis, Richard
•
•
•
Franceschet, Cristian
•
•
•
Lowe, Stuart
•
•
•
Mendes, Luis
•
•
•
Pearson, Dave
•
Poutanen, Torsti
•
•
•
•
Wilkinson, Althea
•
•
Zonca, Andrea
Abstract
As for the same test performed before the Hyper matrix tuning (REF XXX) , this test was
devoted to characterise the i-V response of LNAs when Vg1 and Vg2 are independently changed
over a defined set of values.
In particular , it is aimed at two main purposes:
a) compare the radiometers i-V response with data acquired before Hyper Matrix Tuning:
this check allows to sort out any possible problems related with the functionality of the
LNAs, after the many bias changes characterizing the HYM Tuning procedure.
b) Provide a detailed characterization of the radiometer response, with respect to bias
changes, in the final operative conditions, that is when the optimal tuned bias are set. In
fact, the accurate knowledge of the i-V curves could be useful in order to check, at any
time of the Planck mission, possible changes in the radiometers response due to aging ,
bias fluctuation or to any other criticality.
Volume
PL-LFI-PST-RP-085
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
PST-RP-085_1.pdf
Size
530.15 KB
Format
Adobe PDF
Checksum (MD5)
0a9801e01c8fe58b07af2145b0ccf53b