Design and Analysis of Several Kinds of Dielectric Lens Antennas

Wang, Z. X.; Wang, Dou

doi:10.1163/156939306779292327

Cited by 16 publications

(19 citation statements)

References 8 publications

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“…Typically these large apertures are realized via a single or a double reflector antenna. Other possibilities, which have been less exploited up to now technologically, are the phased array antennas [4,5] and the lens antennas [6,7] and in particular the discrete lens antenna (DLA) [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Genetic Algorithm Optimization of High-Efficiency Wide-Band Multimodal Square Horns for Discrete Lenses

Agastra¹,

Bellaveglia²,

Lucci³

et al. 2008

PIER

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336 Agastra et al.Abstract-By properly exciting higher order modes at an aperture it is possible to achieve higher aperture efficiencies. High efficiency antennas are mandatory in many applications, as discrete lenses, since the single element efficiency deeply affects the efficiency of the whole lens. In this contribution a genetic algorithm is applied to the mode matching analysis of square horns to achieve high radiation efficiency over a relatively wide band.

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Section: Introductionmentioning

confidence: 99%

Genetic Algorithm Optimization of High-Efficiency Wide-Band Multimodal Square Horns for Discrete Lenses

Agastra¹,

Bellaveglia²,

Lucci³

et al. 2008

PIER

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show abstract

“…Therefore, the rigorous electromagnetic analysis method is necessary to analyze them accurately and credibly. We have already analyzed lots of lenses rigorously [15][16][17][18][19]. In this paper, we will analyze only FCLs when illuminated by a plane wave at millimeter wavelengths, owing to their unfamiliarities and novelties.…”

Section: Introductionmentioning

confidence: 99%

“…Of course, other types of axicons can also be analyzed by the same way. However, the analysis method adopted in this paper is different from those presented in [15][16][17][18][19], that is, a two-dimension finite-difference time-domain (2-D FDTD) method in conjunction with Stratton-Chu formulas. The analysis results and conclusions are given in the end.…”

Section: Introductionmentioning

confidence: 99%

Properties of Approximate Bessel Beams at Millimeter Wavelengths Generated by Fractal Conical Lens

Yu¹,

Dou²

2008

PIER

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Abstract-An axicon, which images a point source into a line along the optic axis, is used widely to generate an approximation to a Bessel beam. More recently many novel axicons, such as Fresnel axicons, Fractal axicons and fractal conical lenses (FCLs), have been proposed. Understanding the properties of Bessel beams generated by these axicons is very helpful to research their applications. However, in optical region, all of them are calculated approximately by the scalar theory. To accurately analyze FCLs when illuminated by a plane wave at millimeter wavelengths, the rigorous electromagnetic analysis method, which combines a two-dimension finite-difference time-domain (2-D FDTD) method and Stratton-Chu formulas, is adopted in our paper. By using this method, the properties of approximate Bessel beams generated by FCLs are analyzed and the conclusions are given.

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“…Lens can be used to transform Gaussian beam or used as antennas in higher frequency bands [14,15]. Scattering of Gaussian beam is also interested [16,17].…”

Section: Introductionmentioning

confidence: 99%

Beam Compressed System for Measuring Inhomogeneity and Irregularity of Dielectric Plate With Higher Spatial Resolution Power

You¹,

Dou²,

Qian³

et al. 2008

PIER

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Abstract-The measurement of inhomogeneity and irregularity of dielectric plate requires metering equipments with high spatial resolution power and contactless method. As we know, a measurement system with thin beam has high spatial resolution power. In this paper, a beam compressed system (BCS) is proposed to improve the spatial resolution power for measuring inhomogeneity and irregularity of dielectric plate at millimeter wave band. The beam shape of the BCS has to be carefully designed to achieve a very thin shape which has to be constant over a long range. The BCS can be applied to detect inhomogeneity and irregularity of a dielectric plate from cell to cell with its thin beam. Simulations with FDTD and FEM and experiments are carried out to confirm the performance of the designed BCS, both simulation and experimental results have good agreement. And the images of the permittivity or thickness variance of dielectric plate are given to demonstrate the advantages of the BCS over traditional Gaussian beam measuring method.

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Design and Analysis of Several Kinds of Dielectric Lens Antennas

Cited by 16 publications

References 8 publications

Genetic Algorithm Optimization of High-Efficiency Wide-Band Multimodal Square Horns for Discrete Lenses

Genetic Algorithm Optimization of High-Efficiency Wide-Band Multimodal Square Horns for Discrete Lenses

Properties of Approximate Bessel Beams at Millimeter Wavelengths Generated by Fractal Conical Lens

Beam Compressed System for Measuring Inhomogeneity and Irregularity of Dielectric Plate With Higher Spatial Resolution Power

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