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A design procedure for dielectric microwave lenses of large aperture ratio and large scanning angle

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2 Author(s)
Holt, F. ; AF Cambridge Research Ctr., Bedford, MA, USA ; Mayer, A.

Methods are given for designing point-source three-dimensional aspheric rotationally-symmetric dielectric lenses and for zoning such lenses. Designs for scan angles and aperture ratios much larger than conventional may be achieved and all computations can be done on a desk calculator. The three-dimensional lens is obtained by first designing an exact two-point corrected cylindrical dielectric lens and then rotating a section of the cylindrical lens about the axis of symmetry of the section. The design procedures for the cylindrical lens are based on ray-tracing techniques. Experimental results indicate that the three-dimensional lenses possess good wide-angle scanning characteristics.

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Antennas and Propagation, IRE Transactions on  (Volume:5 ,  Issue: 1 )