The control of passive intermodulation products in spacecraft antennas

Author

Hall, W.J. ; Gibson, M.H. ; Kunes, M.A. ; Eskell, J.M. ; Connor, G.G.

Author_Institution

British Aerosp. Space Syst. Ltd., Stevenage, UK

fYear

1989

fDate

32666

Firstpage

42401

Lastpage

42406

Abstract

Considers those aspects of design which affect passive intermodulation products (PIMP) control. The feed and reflector design aspects concentrate on antennas having combined transmit/receive feed chains whose operation is particularly sensitive to PIMP generation. Suitable reflector construction techniques are also considered in order to achieve acceptable PIMP performance at antenna subsystem level. System integration considerations include the thermal control of the high power feed chain and its dissipative components (diplexer) as well as the positioning of thermal blankets for controlling temperature of the antenna subsystem in the space environment. Measured test results at L- and Ku-band are included with PIMP orders ranging from 9th to 21st at L-band and 21st to 27th at Ku band

Keywords

antenna feeders; intermodulation measurement; microwave antennas; reflector antennas; satellite antennas; Ku-band; L-band; Passive intermodulation products control; antenna subsystem; combined transmit/receive feed; diplexer; dissipative components; feed design; high power feed chain; microwave antennas; reflector construction techniques; reflector design; spacecraft antennas; temperature control; test results; thermal blankets; thermal control;

fLanguage

English

Publisher

iet

Conference_Titel

Passive Intermodulation Products in Antennas and Related Structures, IEE Colloquium on

Conference_Location

London

Type

conf

Filename

198620