Paraboolantenne: Verskil tussen weergawes
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Lyn 36:
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Parabolic antennas are based on the geometrical property of the paraboloid that the paths ''FP<sub>1</sub>Q<sub>1</sub>, FP<sub>2</sub>Q<sub>2</sub>, FP<sub>3</sub>Q<sub>3</sub>'' are all the same length. So a spherical wavefront emitted by a feed antenna at the dish's focus ''F'' will be reflected into an outgoing plane wave ''L'' travelling parallel to the dish's axis ''VF''.]]
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