DocumentCode
1975150
Title
The Characterisation of an Experimental Laboratory 30/20 GHz Satellite Repeater for Digital Transmission
Author
Woode, A.
Author_Institution
EUROPEAN SPACE AGENCY - NOORDWIJK NETHERLANDS
fYear
1979
fDate
17-20 Sept. 1979
Firstpage
223
Lastpage
229
Abstract
The trend for civil communications satellites is for higher capacity, flexibility and increased sophistication. Future systems will make use of the lower millimeter wave bands, with uplink of 30 GHz, downlink 20 GHz and potential bandwidth of 3.5 GHz. In 1975 ESA instigated a program to investigate these future payloads. The activities included system studies, development of critical components, (amplifiers, mixers, oscillators), repeater integration and testing. This paper describes the R.F. measurement made on a single channel double conversion 30/20 GHz breadboard repeater that included the development components. The measurements include gain, noise figure, group delay AM/PM conversion and its characterisation for transmission of a 4 ¿ PSK digital signal.
Keywords
Artificial satellites; Bandwidth; Downlink; Gain measurement; Laboratories; Millimeter wave measurements; Oscillators; Payloads; Repeaters; System testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1979. 9th European
Conference_Location
Brighton, UK
Type
conf
DOI
10.1109/EUMA.1979.332704
Filename
4131346
Link To Document