| 摘要 |
PROBLEM TO BE SOLVED: To propose a high performance interactive satellite terminal antenna system that satisfies existing regulations and operating specifications, and that can be manufactured at a reasonable cost. SOLUTION: An interactive satellite terminal antenna system is provided with an antenna connected to a feed horn. This antenna system comprises an elliptical parabolic main reflector; a corrugated feed horn 2 having an outer elliptical aperture; an inner cylindrical waveguide with an inner portion 7; and a step portion 8. Cavity elements 10 are added to the step portion 8 for compensating cross-polarization components. The invention can be used in antenna systems.
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