Results 161 to 170 of about 3,021 (195)

Tailoring FEKO for microwave problems

IEEE Microwave Magazine, 2008
In this article we have presented some of the more recent modeling options available in FEKO (waveguide ports, combination with FEM, dielectric GO, PBCs, coupling with networks) that are specifically useful to the microwave engineer. In addition to presenting some of the theory, we focused on examples to show the application of each method and ...
Ulrich Jakobus, Marianne Bingle, Marlize Schoeman, Johann J. Van Tonder, Frank Illenseer   +4 more
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Recent MLFMM Improvements in FEKO

2018 IEEE Indian Conference on Antennas and Propogation (InCAP), 2018
The MLFMM in FEKO is continuously being extended and improved to obtain faster solution times using the minimum amount of memory. This paper describes automotive windscreen antenna analysis, requiring the hybridization of the MLFMM based on the surface equivalence principle, the finite element method and windscreen antenna analysis.
Johann van Tonder, Marianne Bingle, Johan Huysamen, Ulrich Jakobus, Marlize Schoeman, C. J. Reddy   +5 more
openaire   +1 more source

Recent extensions in FEKO suite 5.4

2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008
Many new features have been included in the latest release of the electromagnetic simulation package FEKO suite 5.4 from July 2008. This paper aims at giving an overview of the major new features added to the computational kernel, which are: Modelling of periodic boundary conditions for 1-D and 2-D periodic structures, the inclusion of waveguide port ...
Ulrich Jakobus, Marianne Bingle, Johann van Tonder, Johan Marais   +3 more
openaire   +1 more source

Overview of Recent MLFMM Improvements in FEKO

2018 International Applied Computational Electromagnetics Society Symposium - China (ACES), 2018
The MLFMM in FEKO is continuously being extended and improved to obtain faster solution times using the minimum amount of memory. In this paper we present the memory savings obtained for parallel runs on clusters using the latest MPI-3 shared memory features, as well as a new tailored preconditioner to stabilise the iterative solution of the MLFMM.
Johann van Tonder, Ulrich Jakobus, Marianne Bingle, Marlize Schoeman   +3 more
openaire   +1 more source

Recent Advances of FEKO and WinProp

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018
This paper describes recent advances of the commercial CEM code FEKO, as well as the wave propagation and radio network planning tool WinProp. This includes the simulation of characterized surfaces (complex radomes, frequency-selective surfaces) with RL-GO, a direct solver for ACA (adaptive cross approximation), and supporting FEM (finite element ...
Ulrich Jakobus, Andres G. Aguilar, Gerd Woelfle, Johann Van Tonder, Marianne Bingle, Kitty Longtin, Martin Vogel   +6 more
openaire   +1 more source

RCS computation and Analysis of target using FEKO

Proceedings of 2014 3rd Asia-Pacific Conference on Antennas and Propagation, 2014
Radar engineers always have specific requirements for target's RCS data computation and Analysis. Target's detectability can be obtained by 1-dimensional probability density functions (PDF) and 2-dimensional RCS intensity. Based on varying angles of incidence and frequency of excitation RCS data, target's Inverse Synthetic Aperture Radar (ISAR) [1 ...
Xiaofeng Wang, Chen Wang, Yuan Liu
openaire   +1 more source

Loop-Dipole Antenna Modeling using the FEKO code

IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005., 2005
A study was done to optimize the design of a loop dipole antenna over a broad frequency range (0.5 - 2 GHz) using the FEKO method of moments code. Variations to the design were modeled as well as the performance of the antenna in an array. The modeling was compared to anechoic chamber data. The fields generated by the FEKO code were also input to a GTD
W.L. Lippincott, T. Pickard, R. Nichols
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Review of selected new features in FEKO 2018

2018 International Applied Computational Electromagnetics Society Symposium (ACES), 2018
This paper describes new features to the electromagnetic simulation software FEKO as introduced in the FEKO 2018 version. These include the GPU support for the RL-GO (ray launching geometrical optics) solver, a direct solver for ACA (adaptive cross approximation), and various cable modeling extensions.
Ulrich Jakobus, Andres Aguilar, Elia Attardo, Marlize Schoeman, Johann van Tonder, Kitty Longtin   +5 more
openaire   +1 more source

FEKO based ISAR analysis for 3D object reconstruction

2015 National Aerospace and Electronics Conference (NAECON), 2015
In this paper, we constructed a 3D ISAR image to better understand electromagnetic scattering by an electrically large PEC cylinder. Imaging in this context is simply the reconstruction of the spatial distribution of the conductivity of the imaged target, σ(x, y, z).
Ali Nassib, Muhannad Almutiry, Yasar Guzel, Michael C. Wicks, Lorenzo Lo Monte   +4 more
openaire   +1 more source

Recent progress on the antenna simulation program FEKO

Proceedings of the 1998 South African Symposium on Communications and Signal Processing-COMSIG '98 (Cat. No. 98EX214), 2002
This paper describes recent progress with FEKO, an antenna simulation program. FEKO uses the method of moments (MoM), and also offers users a hybrid MoM/physical optics for suitable electrically large problems. Current work on UTD hybridisation is outlined, as well as work on the pre- and post-processors.
Davidson David B., Theron Isak P., Jakobus Ulrich, Landstorfer Friedrich M., Meyer Frans J.C., Mostert Johan, van Tonder Johann J.   +6 more
openaire   +1 more source