Rigorous electromagnetic analysis of diffractive cylindrical lenses

“…Among those, one can mention the refractive (e.g., [1][2][3]) and diffractive lenses (e.g., [4][5][6], and also focusing systems based on the use of frequency-selective surfaces (FSS) in antennas and in reflectarray applications (e.g., [7][8][9][10][11]). …”

Section: Introductionmentioning

confidence: 99%

Numerical study of polarization‐dependent focusing for a bilayer planar FSS reflective lens at millimeter wavelengths

Bliznyuk

Engheta

2004

Micro & Optical Tech Letters

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We analyze numerically the polarization-dependent focusing properties of a planar reflective lens that is formed by two parallel layers of the non-uniform "gangbuster surfaces (GS)" above a ground plane. Since these gangbuster surfaces consist of superdense arrays of thin finite-length parallel metallic wires, the desired phase patterns on such a lens surface are achieved by adjusting lengths of these metallic wires for appropriate polarization components. In our analysis, we use the Method of Moment (MoM) and the transmission lines analogy, along with the surface equivalence theorem, to estimate the field intensity in the focal plane. AbstractWe analyze numerically the polarization-dependent focusing properties of a planar

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“…1 However, the need to analyze structures with aperiodic nonbinary features of finite extent and beam illumination requires that alternatives be sought. This has led to the development of several alternative approaches, e.g., finite-element, 2 boundary element, 3 finite-difference time-domain, 4 and spectral collocation. [5][6][7] The latter two methods both compute a direct solution of the time-domain vectorial Maxwell equations and are very general, as they are applicable to a wide variety of geometries and physical settings.…”

Section: Introductionmentioning

confidence: 99%

Fast and accurate boundary variation method for multilayered diffraction optics

2004

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A boundary variation method for the forward modeling of multilayered diffraction optics is presented. The approach permits fast and high-order accurate modeling of periodic transmission optics consisting of an arbitrary number of materials and interfaces of general shape subject to plane-wave illumination or, by solving a sequence of problems, illumination by beams. The key elements of the algorithm are discussed, as are details of an efficient implementation. Numerous comparisons with exact solutions and highly accurate direct solutions confirm the accuracy, the versatility, and the efficiency of the proposed method.

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Rigorous electromagnetic analysis of diffractive cylindrical lenses

Cited by 95 publications

References 8 publications

Pseudo-Bessel Beams in Millimeter and Sub-Millimeter Range

Pseudo-Bessel Beams in Millimeter and Sub-Millimeter Range

Numerical study of polarization‐dependent focusing for a bilayer planar FSS reflective lens at millimeter wavelengths

Fast and accurate boundary variation method for multilayered diffraction optics

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