Abstract

The inverse source problem has a number of applications in antenna analysis and synthesis. The properties of the radiation operator, connecting the source current to the far zone field, depends on the source geometry and can be analyzed by its Singular Value Decomposition. In this paper we examine point source reconstructions by considering the Point Spread Function. An approximate closed form evaluation for limited observation domains reveals a space variant behavior. It turns out that for a conformal array a non-uniform elements spacing accommodates definite advantages both for diagnostic and synthesis purposes. Numerical results are shown for a semi-circumference source observed in far zone over a semi-circumference.

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