Low 1/f Noise 30 GHz Broadband Amplifiers for the Differential Radiometers of the Planck Surveyor Mission.

Author

Artal, E. ; Aja, B. ; De la Fuente, M.L. ; Palacios, C. ; Mediavilla, A. ; Pascual, J.P. ; Portilla, J.

Author_Institution

Departamento de IngenierÃ\xada de Comunicaciones, ETSI TelecomunicaciÃ³n, Universidad de Cantabria, Avenida de los Castros s.n., 39005 Santander, Spain. artal@dicom.unican.es

fYear

2001

fDate

24-26 Sept. 2001

Firstpage

1

Lastpage

4

Abstract

A radiometer Back End Module based on broadband low noise amplifiers and band pass filters is presented. Low noise amplifiers are multistage HEMT MMIC chips. A 20% of bandwidth at 30 GHz have been achieved. The passband is fixed by coupled lines microstrip filters. A complete module containing two identical branches of amplification and filtering stages with a gain greater than 30 dB has been developed. The low 1/f noise behavior of gain fluctuations allows the module to be used as the Back End Module for the differential radiometers in the European Scientific mission Planck. Details of the MMIC chips and filters assembly as well as experimental results are included.

Keywords

Band pass filters; Bandwidth; Broadband amplifiers; Filtering; HEMTs; Low-noise amplifiers; MMICs; Microstrip filters; Passband; Radiometers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. 31st European

Conference_Location

London, England

Type

conf

DOI

10.1109/EUMA.2001.338967

Filename

4140035