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Large spacecraft antennas - New geometric configuration design concepts (1971)

Oliver, R. E · leaf 4

An illustration from Large spacecraft antennas - New geometric configuration design concepts, 1971, leaf 4
AXIS OF PARABOLA IMAGE OF SUBREFLECTOR IN MAIN REFLECTOR ■SUBREFLECTOR ^-FEED CENTER Figure 5. Multiple-reflection conical antenna REFLECTION OF MAIN SUBREFLECTOR … Figure 6. Multiple-reflection conical antenna with modified Cassegrain feed half angles a and p (Figure 5) will emerge from the antenna parallel to the antenna axis. Further, it is also easily shown that all path lengths of these rays from the feed center F to any plane normal to the antenna axis…

Interplanetary spacecraft · Liquid rocket propellants · Solid propellant rocket engines · Space simulators · Technologies · Low thrust propulsion · Mission planning · Physiological effects · Spacecraft components · Telemetry · Combustion control · Computer aided design · Interplanetary flight

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