Title :
Antenna system for Ariane 5 booster
Author :
Shunin, O.A. ; Tensin, V.S.
Author_Institution :
Res. Inst. of Measuring Syst., Nizhny Novgorod, Russia
Abstract :
The antenna system for the Ariane 5 booster recovery device has been developed to provide high temperature stability, solidity and low-protruding design, high uniformity of radiation coverage in the directions to the boosters´ bottom. The antenna system includes 4 antenna units disposed under 90 deg from each other in the booster´s nose cross section. The opposite antennas in each of 2 antenna pairs are connected by cables and power divider. L-band slotting antennas have the fibre-quartz-based material on a slot and a heat-reflecting coating placed on a titanium casing. The feed pin is attached to the casing by laser welding. The antenna provides good matching (about 20% frequency band within SWR=2.0). To provide a uniform elevation pattern of the antenna pair the geometry of the antenna edges should be matched. This has been accomplished by means of X-band measurements using antenna and booster scale models.
Keywords :
antenna radiation patterns; slot antenna arrays; space vehicles; Ariane 5 booster; L-band slotting antennas; Ti casing; X-band measurements; antenna edges; antenna models; antenna pairs; antenna system; booster scale models; booster´s nose cross section; elevation pattern; feed pin; fibre-quartz-based material; heat-reflecting coating; high temperature stability; laser welding; low-protruding design; radiation coverage; radiation pattern; solidity; Coatings; Directive antennas; L-band; Nose; Optical fiber cables; Optical materials; Power dividers; Slot antennas; Stability; Temperature;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631598
