Journal
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume 43, Issue 6, Pages 515-518Publisher
WILEY
DOI: 10.1002/mop.20520
Keywords
dielectric lens; focusability; boundary integral equations
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The behavior of a 2D model of an extended hemielliptic silicon lens of a size typical THz applications is accurately studied for the ease of a plane E-wave illuminaton. The full-wave analysis of the scattering problem is based on the Muller's boundary integral-equations (MBIE) that are uniquely solvable. A Galerkin discretization scheme with a trigonometric basis leads to a very efficient numerical algorithm. Vie numerical results related to the focusability of the lens versus its rear-side extension and the angle of the plane-wave incidence, as well as near-field profiles, demonstrate strong resonances. Such effects can change the principles of optimal design of lens-based receivers. (C) 2004 Wiley Periodicals, Inc.
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