Papers

Papers

12
Apr
2015

This paper presents the analysis and optimization of  a 1 meter single-layer curved contoured beam reflectarray in Kuband. The curved reflectarray is designed to radiate a contoured beam over a...

06
Nov
2014

An efficient Body of Revolution Method of Moments formulation is presented in which the unknown surface current density on the generatrix of the rotationally symmetric scatterer is expanded in...

17
Oct
2014

Two different antenna models are set up in GRASP and CHAMP, and noise is added to the radiated field. The noisy field is then given as input to the 3D reconstruction of DIATOOL and the SWE...

17
Oct
2014
Co-authors:
P. C. Hansen, Department of Applied Mathematics and Computer Science, DTU, Denmark

Reverberation chambers (RCs) are important measurement facilities, and thus it is often required to simulate their behaviour numerically. However, due to their special characteristics,  especially...

12
Oct
2014
Co-authors:
Sergey Pivnenko, Dept. of Electrical Engng., TUD, Denmark / Oleksiy Kim, Dept. of Electrical Engng., TUD, Denmark / Olav Breinbjerg, Dept. of Electrical Engng., TUD, Denmark / K. Branner, Dept. of Wind Energy, TUD, Denmark / C. M. Markussen, Dept. of Wind Energy, TUD, Denmark / M. Paquay, ESA/ESTEC, The Netherlands

Inter-comparisons and validations of antenna measurement ranges are useful tools allowing the detection of various problems in the measurement procedures, thus leading to improvements of the...

01
Oct
2014
Co-authors:
P. C. Hansen, Department of Applied Mathematics and Computer Science, DTU, Denmark

An alternative parameter-free adaptive approach for the grouping of the basis function patterns in the multilevel fast multipole method is presented, yielding significant memory savings compared...

01
Sep
2014
Co-authors:
P. C. Hansen, Department of Applied Mathematics and Computer Science, DTU, Denmark

The multi-level fast multipole method (MLFMM) for a higher order (HO) discretization is demonstrated on high-frequency (HF) problems, illustrating for the first time how an efficient MLFMM for HO...

07
Jul
2014

The design and optimization of a single-layer multifaceted dual-polarization contoured beam reflectarray with different coverages in each polarization has been presented. The reflectarray is...

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

Results using a new translation operator for the Multi-Level Fast Multipole Method are presented. Based on Gaussian beams, the translation operator allows a significant portion of the plane-wave...

07
Apr
2014

The 3D reconstruction algorithm of DIATOOL is applied to the BTS1940 antenna, recently measured at the DTU-ESA Spherical Near-Field Antenna Test Facility in Denmark. The antenna was measured...

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