Company

Papers

07
Apr
2014
Co-authors:
H.-H. B. Sørensen, Department of Applied Mathematics and Computer Science, DTU, Denmark / B. Dammann, Department of Applied Mathematics and Computer Science, DTU, Denmark / P. C. Hansen, Department of Applied Mathematics and Computer Science, DTU, Denmark

The Physical Optics approximation is a widely used asymptotic method for calculating the scattering from electrically large bodies. It requires significant computational work and little memory,...

07
Apr
2014

This paper presents an efficient technique for full-wave analysis of dielectric lenses with integrated feeding. The feeding section is analysed with a higher-order 3D-MoM algorithm, while the...

07
Apr
2014

The design and optimization of multi-faceted reflectarrays for satellite applications are presented. The objective of this work is to investigate the performance of a multi-faceted reflectarray...

07
Apr
2014

Two efficient analysis methods for the accurate modeling of electrically large dielectric lens antennas are presented. The first method is based on Double Physical Optics (PO), which takes into...

06
Apr
2014

The Multilevel Fast Multipole Method (MLFMM) allows for a reduced computational complexity when solving electromagnetic scattering problems. Combining this with the reduced number of unknowns...

27
Mar
2014
Co-authors:
Oleksiy S. Kim, DTU / Olav Breinbjerg, DTU / Giovanni Toso, ESTEC

A generalized direct optimization technique (GDOT) for the design of printed reflectarrays using arbitrarily shaped elements with irregular orientation and position is presented. The GDOT is based...

10
Sep
2013

This paper focuses on three important features of the 3D reconstruction algorithm of DIATOOL: the identification of array elements improper functioning and failure, the obtainable spatial...

08
Apr
2013

The 3D reconstruction algorithm is applied to the prototype feed array of the BIOMASS synthetic aperture radar, recently measured at the DTU-ESA Spherical Near-Field Antenna Test Facility in...

08
Apr
2013

An efficient algorithm for analysis and optimization of rotationally symmetric reflector antennas, possibly including 3D support structures and/or waveguide components, is presented. The high...

08
Apr
2013

Two new efficient optimization schemes for direct optimization of printed reflectarrays are presented. Instead of optimizing directly on the geometry of the array elements, continuous functions...

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