Whispering-gallery and Luneburg-lens effects in a beam-fed circularly-layered dielectric cylinder
arXiv:1001.4113 · doi:10.1109/TAP.2002.801270
Abstract
The whispering-gallery mode (WGM) excitation and Luneburg lens (LL) effect are studied for a lossy circularly-layered dielectric cylinder illuminated by a beam field. The latter is simulated by the Complex Source-Point (CSP) beam. Exact series solution to the wave scattering problem is used to obtain the far-field patterns and directivity. The WG mode effect is shown to undermine the LL performance. Index Terms: Layered circular dielectric cylinder, Complex source point beam, Whispering-gallery modes, Luneburg lens.
5 pages, 7 figures
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