A 60-channel superconductive input multiplexer integrated with pulse-tube cryocoolers

Author

Mansour, Raafat R. ; Ye, Shen ; Jolley, Bill ; Thomson, Glenn ; Peik, Soeren F. ; Romano, Tony ; Tang, Wai-Cheung ; Kudsia, Chandra M. ; Nast, Ted ; Williams, Brian ; Frank, David ; Enlow, David ; Silverman, George ; Soroga, Jeffery ; Wilker, Charles ; Wa

Author_Institution

Corp. Res. & Dev. Dept., COM DEV Ltd., Cambridge, Ont., Canada

Volume

48

Issue

7

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1171

Lastpage

1180

Abstract

This paper presents the measured results of a C-band 60-channel superconductive input multiplexer integrated with pulse-tube space-qualified cryocoolers. The multiplexer is developed to duplicate the requirements of the INTELSAT 8 program. The channel filters are self-equalized ten-pole high-temperature superconductor (HTS) planar structures designed with drop-in cryogenic ferrite circulators and isolators. This paper presents details on RF design, packaging, and cryocooler integration, as well as an assessment of overall reliability of using HTS equipment in a space environment. This paper demonstrates that at least 50% reduction in mass and 65% reduction in size can be achieved by replacing the INTELSAT 8 C-band dielectric-resonator input multiplexer with a superconductive multiplexer

Keywords

channel bank filters; cryogenic electronics; ferrite isolators; high-temperature superconductors; microwave circulators; multiplexing equipment; packaging; space vehicle electronics; superconducting device reliability; superconducting filters; C-band; INTELSAT 8 program; RF design; channel filters; cryocooler integration; cryogenic ferrite isolators; drop-in cryogenic ferrite circulators; overall reliability; packaging; pulse-tube cryocoolers; self-equalized ten-pole HTS planar structures; space-qualified cryocoolers; superconductive input multiplexer; Circulators; Cryogenics; Ferrites; High temperature superconductors; Isolators; Multiplexing; Pulse measurements; Radio frequency; Superconducting filters; Superconductivity;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.853457

Filename

853457