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Calculating Position of Feed Antenna and Dimensions of Subreflector in the Cassegrain Antenna Using the Bisection Numerical Method

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Abstract (2. Language): 
In this paper Cassegrain antenna and its geometric structure is reviewed and a relation for calculating dimensions of its main and subreflector to minimize the blockage is investigated. This relation which is a complicated equation with respect to several variables is then simplified in the design example and expressed versus only one variable. The simplified equation is then solved numerically using the method of bisection with rapid convergence and high precision. The design example clarifies the method more clearly.
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