Finite element analysis of axisymmetric radomes

Gordon, Richard K.; Mittra, R.

doi:10.1109/8.237631

Cited by 59 publications

(19 citation statements)

References 8 publications

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“…The radome problems can also be solved by using numerical methods like the method of moments [5] or the finite element techniques [6]. Even though these methods provide us the more accurate and smooth data than the hybrid ray techniques, they are mainly limited to the electrically small and medium size geometries.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Nonconcentric Reflector Antenna-in-radome System by the Iterative Reflector Antenna and Radome Interaction

Oğuzer¹,

Altintas²

2007

Journal of Electromagnetic Waves and Applications

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Abstract-Nonconcentric reflector antenna-in-radome systems are used in applications especially requiring smaller radome coverages. The analysis of this two-dimensional geometry is performed for the Epolarization case. Here the geometry is decomposed into two parts and the analysis is performed by imposing the boundary conditions on each part as an iterative manner. This is known as the iterative boundary condition method in the literature. Convergence and accuracy are established numerically and it is seen that the expectations are really verified in reasonable CPU times. Also various numerical results are obtained for the description of the radiation characteristics.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Nonconcentric Reflector Antenna-in-radome System by the Iterative Reflector Antenna and Radome Interaction

Oğuzer¹,

Altintas²

2007

Journal of Electromagnetic Waves and Applications

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“…For enhanced accuracy, the techniques take into account reflections occurred in the radome. Full wave analysis methods are also used such as MOM [7], and FEM [8]. At lower frequency band, these methods yield more accurate results at the expense of hundred or thousand times longer computation time.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Radome Bore-Sight Errors Using a Projected Image of Source Distributions

Lee¹,

Park²

2009

PIER

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Abstract-In this paper, a calculation method for bore sight error voltage is presented for aperture antennas enclosed in radomes of arbitrary shapes.The method adopts a ray tracing technique frequently used in computer graphics field in constructing two dimensional computer graphics images to obtain a projected image of source distribution, thereby bore sight error voltages and far field radiation patterns are calculated fast and accurately. Besides, the method enables us to use various acceleration schemes used in computer graphics readily. Numerical calculations show that projected source images with a resolution higher than 0.1λ and multiple reflections taken into account produce reliable results. The validity of the method is verified by comparison with results of an analytic solution.

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“…Method of moments (MoM) has also been used [5][6][7], possibly accelerated via a fast multipole method [8], as well as finite element method (FEM) [9]. More recently hybrid techniques mixing PO and MoM for low curvature parts and full-wave MoM method for the high curvature parts [10][11][12], or mixing PO, boundary integrals, mode matching and FEM [13] were investigated.…”

Section: Introductionmentioning

confidence: 99%

A Physical Optics Approach to the Analysis of Large Frequency Selective Radomes

D'Elia¹,

Pelosi²,

Pichot³

et al. 2013

PIER

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Abstract-State-of-the-art radomes exploit frequency selective media so as to be transparent for the frequencies of the antenna protected by them and opaque to other frequencies. This feature helps in reducing the radar cross section of the antenna and in protecting it from interference. The study of a frequency selective radome is a daunting task, since the radome is usually large in terms of wavelengths, hence full wave analyses are prohibitive. In this paper an approximate technique, based on the physical optics concept, is proposed to attain an estimation of the behavior of a radome shielded antenna in a short time with a commonly available computer. Results are validated against a full wave technique over a relatively small radome.

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Finite element analysis of axisymmetric radomes

Cited by 59 publications

References 8 publications

Analysis of the Nonconcentric Reflector Antenna-in-radome System by the Iterative Reflector Antenna and Radome Interaction

Analysis of the Nonconcentric Reflector Antenna-in-radome System by the Iterative Reflector Antenna and Radome Interaction

Prediction of Radome Bore-Sight Errors Using a Projected Image of Source Distributions

A Physical Optics Approach to the Analysis of Large Frequency Selective Radomes

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