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| Progress In Electromagnetics Research | ISSN: 1070-4698, E-ISSN: 1559-8985 |
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FIELDS IN THE FOCAL SPACE OF SYMMETRICAL HYPERBOLOIDAL FOCUSING LENSBy A. Ghaffar, A. A. Rizvi, and Q. A. NaqviAbstract: In this paper, Maslov's method has been used to obtain the high frequency field refracted by a hyperboloidal focusing lens. High frequency problem which contains caustic region is transformed into caustic free problem by transforming the situation into mixed domain. The high-frequency solution that includes the caustic region is obtained from geometrical optics. The defect in high frequency solution due to geometrical optics is overcomed by Maslov's method. Numerical computations are made for the field pattern around the caustic. The results are found in good agreement withobtained using Debye-Wolf focusing integral.
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References:
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