Featured Articles
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High Performance Computing
7/29/2015
FEKO simulation software has a variety of numerical methods and hybridizations that are suitable for a specific range of applications and computer model sizes. In some cases, high performance computing (HPC) is essential in demanding CEM simulations. This application note presents information on numerous HPC solutions, and the strategic industry partners in place to ensure their value.
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Integrated Windscreen Antenna Analysis
10/15/2019
Many of today’s vehicles tend to include antennas for AM and FM radio, television, GPS navigation, GMS communication, and automated tolling. This white paper discusses how FEKO can provide accurate and efficient solutions in the analysis of integrated windscreen antennas.
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Intelligent Design with Characteristic Mode Analysis (CMA)
4/30/2015
The theory of characteristic mode analysis (CMA) is a well-known method that allows for the analysis of arbitrary structures, and gives insight into the resonating behaviors of structures. This application note describes CMA as an innovative alternative for design optimizations for problems such as antenna design, and when applied with the correct interpretation, the possible solutions are endless.
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Microstrip Antennas and Circuits Analysis with FEKO
8/20/2012
Electromagnetic Simulation Software to model currents on metallic surfaces, which enable accurate simulations of coupling, near fields, far fields, radiation patterns, current distributions, impedances, S-parameters, and more.
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Radiation Hazard/Human Exposure Modelling
7/29/2015
In any system design that involves radio frequency (RF) transmitters, protection against the dangers of extremely high levels of radiation is a large concern. There are the dangers of overexposure for humans in the general public, and there are dangers of accidental ignition of highly combustible liquids or ordinance in military environments. This application note discusses on the guidelines in place for radiation safety, and examples of radiation reference levels and cases with absolute restrictions.
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RF Design And Safety For Biotechnology
4/24/2014
Systems for healthcare are at the forefront of technology development, and include remote patient monitoring, drug delivery and sophisticated imaging systems. In many cases, wireless telemetry is embraced, making use of spectrums in the low MHz to tens of GHz, depending on the application.
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RF Design And Safety Of MRI Systems
4/24/2014
Electromagnetic simulation software has become an indispensable tool in the development and analysis of magnetic resonance imaging (MRI) systems. Motivated by better image resolution, improved signal to noise ratio (SNR) and reduced scan times, the trend to design systems that operate at higher static (B0) field strengths comes with new challenges. The increase in static field strength implies a proportional increase in the B1 field frequency. As the wavelength becomes comparable to the electrical size of the patient and the MRI geometry, it becomes more difficult to achieve a homogeneous field distribution that is required for good image quality.
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Scattering And Radar Cross Section
8/3/2015
An object’s scattering properties are described as the special distribution of scattered energy when it is exposed to incident electromagnetic fields, and is measured by radar cross section (RCS). Depending on the object’s shape, size, and material characteristics, the incident fields can be reflected, absorbed by the object, or scattered into multiple directions. The FEKO software has the ability to differentiate incident from reflected electromagnetic field components, and is well suited for scattering and RCS computations.
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Simulating Anechoic And Reverberation Chambers
8/3/2015
There is a rising concern in the electronics industry regarding increased pollution in the form of electromagnetic interference (EMI), radio frequency interference (RFI), and spurious signals caused by electronic devices and radiating cables.Since some effects of this pollution can be extremely dangerous, many countries require commercial and military products to meet electromagnetic compatibility (EMC) standards before they are placed on the market.In order to test devices against EMC/EMI standards and ensure their compliance, anechoic and reverberation chambers are employed. This application note discusses using computational electromagnetic (CEM) simulation tools are ideal designing custom anechoic chambers.
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Benchmark Simulations Of Waveguide Components
8/3/2015
There is a driving need for more accurate and compact waveguide components at higher frequencies, while maintaining cost-effective solutions. This application note presents a handful of benchmark simulations of waveguide components performed with FEKO.