Papers

Papers

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...

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

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...

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

Novel antenna architectures for real aperture multi-beam radiometers providing high resolution and high sensitivity for accurate sea surface temperature (SST) and ocean vector wind (OVW)...

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...

06
Oct
2013

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

06
Oct
2013
Co-authors:
Carsten Schmidt / A. Geise, Astrium GmbH

Compensated compact ranges offer accurate testing techniques for large devices under test. The quiet zone field performance is affected by diffracted field components from the sub and main...

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...

07
Jul
2013

A fast and accurate approach to designing horns and reflectors is implemented in the CHAMP code. The paper presents examples of designs, including shaped reflectors and a horn with a dielectric...

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