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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 

mahan.r@altair.com

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About mahan.r@altair.com

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  1. Hi, FEKO uses one dimensional mesh (segment) to solve wires. So it splits a wire to multiple segments and calculates the current distribution over each segment. segment length can be controlled by setting the mesh size and the segment radius can be controlled by setting the wire radius. As MoM formulation for wires only considers axial current (no variation in circumferential direction), the radius should be much smaller than the wavelength, for this assumption to be valid (smaller than 0.1 lambda). One may intuitively expect that having smaller wire segment will improve the accuracy. This is correct to some extent, however the other factor that may affect the result is the ratio of wire radius to segment length. Numerical experiments have shown that good accuracy will be obtained for wire radius/segment length less than 0.1. for large ratios, current near open wire ends will present oscillatory behavior which may result in large errors
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