Featured Articles
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Cross-Coupling Between A 3G Transmitter And A Cable Bundle
7/16/2019
This paper explains how to compute cross-coupling effects between a cable bundle and 3G antenna mounted on a vehicle using the cable modeling interface in FEKO. It also demonstrates FEKO GUI elements useful for investigating the cross-coupling between transmitters and cable bundles.
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Cable Harness EMC/EMI: Cross Talk, Radiation, Interference And Susceptibility
10/4/2016
When using bundles of electrical cables in vehicles, aircrafts, ships, and buildings, electrical designers are met with the challenges of electromagnetic compatibility and interference. The long cables are more prone to radiate or pick up irradiation than many other electrical components and systems. This white paper discusses how these challenges may be met through the aid of FEKO’s electromagnetic simulation capabilities.
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Determining Radiation Patterns And Efficiency In Slotted Waveguide Arrays
8/23/2016
A slotted waveguide array is a popular choice for use in radar systems with its mechanical robustness, compactness, and ability to handle high power levels. This array is modeled in Altair’s FEKO software in order to determine radiation patterns and array efficiency. The white paper shows the slotted waveguide array in use, and presents graphs and images of its different patterns, measurements, and efficiencies.
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Characteristic Mode Analysis For Antenna Placement
3/16/2015
Antenna design for high-frequency (HF) communications on a small aircraft is challenging because the antennas will always be much smaller than the wavelength. However, this disadvantage can be turned into an advantage. In the HF band the wavelengths and the aircraft size have the same order of magnitude, so through judicious antenna placement the aircraft body can be excited in such a way that the radiation pattern and the bandwidth are improved.
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Characteristic Mode Analysis For Ultra-Wideband Antenna Design
7/28/2015
Characteristic mode analysis (CMA) to provide new insights that would be difficult to obtain otherwise. CMA provides insights into physics of the problem, as it produces the radiating current modes that fit naturally on a given geometry. This application note discusses how CMA insights may be used to improve performance of an ultra-wideband antenna.
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Combined Electromagnetic Field and Cable Coupling Solutions
7/12/2013
This white paper explains how FEKO electromagnetic simulation software can help engineers solve combined electromagnetic field/cable problems.
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Designing An Impedance Matched Antenna: FEKO And Optenni Lab
7/28/2015
Many designers will find Optenni Lab useful in creating antenna designs that will conform to any impedance requirement. This application note talks about the Optenni Lab, and examples of its use and value in the design of a DVB antenna, and a compact GPS and Wi-Fi Antenna.
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Electromagnetic And Thermal Analysis Of A Human-Body Model With Implant In MRI
7/28/2015
Magnetic resonance imaging (MRI) technology is dependent on a good radio-frequency (RF) coil design for its image quality. FEKO simulation software can be used to efficiently design these coils with the simulation methods the tool offers. This application note describes how to use FEKO in RF coil design with an implant in ASTM models, and with an implant in a heterogeneous human-body model.
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Electromagnetic Environmental Effects On Aircraft With Composite Materials
7/28/2015
Carbon fiber reinforced composite (CFRD) materials are able to conduct electricity, but provide less shielding than metal and raise concerns in electromagnetic environmental effects. This application note measures the effects of these materials in some practical examples.
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Comprehensive Electromagnetic Solutions: FEKO in EMC/EMI Applications
7/16/2015
This application note discusses how FEKO may be used in EMC and EMI simulations such as antenna analysis, simulation of electrically large structures, shielding, and cable modeling.