Hyperboloid of revolution

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Related to Hyperboloid of revolution: Hyperboloid of two sheets, Paraboloid of revolution
an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, but only one when the axis of revolution is the conjugate axis of the hyperbola.

See also: Hyperboloid

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The subreflector is a 57-inch diameter hyperboloid of revolution constructed of two frequency-selective surfaces supported by a hollow fiberglass mounting ring.