Equivalence relation between partial angular harmonic and ray-type Green's functions for a cylindrical dielectric layer

Felsen, Leopold B.; Subramaniam, N.; Arichandran, K.

doi:10.1109/8.56966

Cited by 3 publications

(4 citation statements)

References 6 publications

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“…One of the earliest ideas was an approximate description of the radome by using the resistive boundary condition [2] derived for a very thin dielectric shell, and solving the problem by the method of moments (MoM). The other traditional techniques for the analysis of radomes are the plane-wave spectrum, surface integration [3], and the ray tracing [4]- [6]. Both are high-frequency asymptotic techniques treating the aperture field distribution as a series of rays that are traced through the radome wall.…”

Section: Introductionmentioning

confidence: 99%

“…Both are high-frequency asymptotic techniques treating the aperture field distribution as a series of rays that are traced through the radome wall. In [5], [6], ray tracing was extended to include the curvature effects of a circular cylindrical radome. Instead of locally flat, a locally circular-cylindrical surface model was proposed in [7].…”

Section: Introductionmentioning

confidence: 99%

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Numerical optimization of a cylindrical reflector-in-radome antenna system

Yurchenko

Altintas

Nosich

1999

IEEE Trans. Antennas Propagat.

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Cataloged from PDF version of article.Accurate numerical optimization based on the rigorous\ud solution of the integral equation using the method of\ud analytical regularization is performed for the cylindrical reflector\ud antenna in a dielectric radome. It is shown that the multiple\ud scattering in this system is more significant for the optimum\ud radome design than any nonplane-wave effects or the curvature of\ud the radome. We claim that, although the common half-wavelength\ud design is a good approximation to avoid negative effects of the\ud radome (such as the loss of the antenna directivity), one can, by\ud carefully playing with the radome thickness, its radius, reflector\ud location, and the position of the feed, improve the reflector-inradome\ud antenna performance (e.g., increase the directivity) with\ud respect to the same reflector in free-space

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical optimization of a cylindrical reflector-in-radome antenna system

Yurchenko

Altintas

Nosich

1999

IEEE Trans. Antennas Propagat.

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“…The scattered part of the Green's function i.e., G sc has to be piecewise continuous behaviour on C as indicated in equation (6). So the original function G sc and its first derivative have to exist i.e., piecewise defined and have no singularity.…”

Section: Formulationmentioning

confidence: 99%

“…Then the ray tracing was extended by considering the all hybrid ray combinations [4]. In [5] and [6], this extended ray tracing technique was applied to analyze the circular cylindrical radome and the curvature effects were included into the solution. In [7], the beam transmission through 2D radome is considered by using the complex ray tracing.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Nonconcentric Radome-Enclosed Cylindrical Reflector Antenna System, E-Polarization Case

Oğuzer¹,

Altintas²

2005

Journal of Electromagnetic Waves and Applications

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Abstract-Two-dimensional (2-D) radiation of a directive complex line source is analyzed in the presence of a perfectly conducting (PEC) reflector antenna system and nonconcentrically located dielectric radome. Similar problem was studied in the literature by using method of regularization and Green's function formulation for the Hpolarization case. Here the same techniques are used for E-polarization case but in this case the scattered part of the Green's function is computed by using an FFT based algorithm. This provides us to solve the larger geometries accurately in reasonable computer times. So this approach can be considered as another alternative for the analysis of the E-polarized radome-enclosed reflector antenna system. Various numerical results are presented to support the convergence and accuracy of the technique and at the same time these results can be considered as reference data.

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