An integrated 11 GHz cryogenic downconverter

Author

Phillips, W.A. ; Jedamzik, D. ; Lamacraft, K. ; Zammattio, S. ; Greed, R.B. ; Hedges, S.J. ; Whitehead, P.R. ; Nicholson, B.F. ; Button, T.W. ; Smith, P.A. ; Alford, N.M. ; Peters, N. ; Grier, J.

Author_Institution

GEC Hirst Res. Centre, Borehamwood, UK

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2283

Lastpage

2286

Abstract

A cryogenic downconverter has been designed and built to demonstrate the integration of semiconducting and superconducting components in a complete subsystem cooled by a closed cycle Stirling cryocooler. The frequency selective receiver converts 11 GHz (X-band) signals to an IF of 1000 MHz using a high temperature superconducting (HTS) microstrip input filter with a 1% bandwidth, a silicon diode mixer and a local oscillator stabilized by means of a 10 GHz HTS cavity and driven by a GaAs HEMT. The components are packaged into a cryogenic unit cooled to 60 K. Details of the system integration are presented, together with microwave and thermal test results.<>

Keywords

HEMT circuits; cryogenic electronics; high-temperature superconductors; microstrip filters; microwave frequency convertors; microwave mixers; microwave receivers; packaging; superconducting cavity resonators; superconducting microwave devices; 1 GHz; 11 GHz; GaAs; GaAs HEMT; GdBaCuO; HTS cavity stabilisation; HTS microstrip input filter; IF signals; Si diode mixer; X-band signals; YBaCuO; closed cycle Stirling cryocooler; cryogenic unit; frequency selective receiver; high temperature superconductor; integrated SHF cryogenic downconverter; local oscillator; semiconductor components; superconducting components; Bandwidth; Cryogenics; Frequency conversion; High temperature superconductors; Microstrip filters; Microwave filters; Semiconductivity; Silicon; Superconducting filters; Superconducting microwave devices;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403041

Filename

403041