The design of the Crew-Lock antenna for the Russian communication and data system (for the International Space Station) was challenging, because it is enclosed in a conducting shell. In addition, the electromagnetic-field distribution within the Crew Lock is highly constrained by the lowest one or two normal modes of the structure. Two kinds of antennas were investigated to address the requirements: a half loop and a loaded patch. Computer modeling of these approaches was done by the finite-element and moment methods, respectively. The loop antenna underwent extensive scale-model testing, and some full-scale tests at Johnson Space Center in Houston. The patch antenna was eliminated during the full-scale tests. The final design is the 'towel-bar' loop, which performs the additional function of a handrail for astronauts during the ingress and egress for extra-vehicular activity (EVA).
Development of the Orlan Space-Station antenna
IEEE Antennas and Propagation Magazine ; 42 , 5 ; 9-27
2000
19 Seiten, 10 Quellen
Aufsatz (Zeitschrift)
Englisch
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