Low noise amplifiers in InP technology for pseudo correlating millimeter wave radiometer

P. Kangaslahti, T. Gaier, D. Dawson, Jussi Tuovinen, Timo Karttaavi, Manu Lahdes, N. Hughes, T. Cong, P. Jukkala, P. Sjöman, W. Weinreb

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

20 Citations (Scopus)

Abstract

This decade will be very important for cosmology due to several missions to measure the cosmic microwave background radiation. These measurements require highly sensitive radiometers operating over a very wide frequency spectrum. The millimeter wave radiometers are best developed as pseudo correlating radiometers due to the inherent stability and high sensitivity of this instrument, To miniaturize the size and power consumption of these radiometers we have developed the critical low noise amplifier and phase switch MMICs using high-performance InP technologies. The low noise amplifiers achieved record 2.3 dB noise figure over the 60-80 GHz frequency band at room temperature and less than 25 K noise temperature at 20 K ambient temperature. These MMICs form the building blocks for 70 GHz highly sensitive correlating radiometers, that are needed e.g. in the ESA Planck mission.
Original languageEnglish
Title of host publication2001 IEEE MTT-S International Microwave Symposium Digest
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages1959-1962
ISBN (Print)0-7803-6538-0
DOIs
Publication statusPublished - 2001
MoE publication typeA4 Article in a conference publication
Event2001 IEEE MTT-S International Microwave Symposium Digest - Phoenix, United States
Duration: 20 May 200125 May 2001

Conference

Conference2001 IEEE MTT-S International Microwave Symposium Digest
Country/TerritoryUnited States
CityPhoenix
Period20/05/0125/05/01

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