Microwave backscatter from a capped dielectric lens
Ambrose, John Edward
Segelhorst, Herbert Edwin
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A specific application of a spherical dielectric lens provides the impetus for the development of a simple analytical method of predicting microwave backscatter from such a lens. The principles of geometric optics and stationary phase are presented as detailed in current literature. Geometric optics or ray tracing is then utilized in developing a unique method of determining the backscattered E field by the use of a computer program constructed for the CDC 1604 computer. Several models are constructed and tested in an anechoic chamber and on an outdoor radar backscatter range. The results of these tests are then compared to those of the computer program. The correlation of the predicted and measured E fields indicates the computer program to be a useful tool in the construction of a dielectric lens.
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