Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules

Details Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules

2010-01-26

arxiv.org/abs/1001.4661v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

16 pages, 15 figures. This paper is part of of the prelaunch status Planck LFI papers published on JINST: http://www.iop.org

Scientific paper

10.1088/1748-0221/4/12/T12001

70 GHz radiometer front-end and back-end modules for the Low Frequency Instrument of the European Space Agencys Planck Mission were built and tested. The operating principles and the design details of the mechanical structures are described along with the key InP MMIC low noise amplifiers and phase switches of the units. The units were tested in specially designed cryogenic vacuum chambers capable of producing the operating conditions required for Planck radiometers, specifically, a physical temperature of 20 K for the front-end modules, 300 K for the back-end modules and 4 K for the reference signal sources. Test results of the low noise amplifiers and phase switches, the front and back-end modules, and the combined results of both modules are discussed. At 70 GHz frequency, the system noise temperature of the front and back end is 28 K; the effective bandwidth 16 GHz, and the 1/f spectrum knee frequency is 38 mHz. The test results indicate state-of-the-art performance at 70 GHz frequency and fulfil the Planck performance requirements.

Affiliated with

Also associated with

No associations

Rating

Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-644547