Design of stepped impedance transformers with large number of sections.

Çoğun, Ferrin


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Although design methods of wideband impedance transformers are known, in some cases there can be limitations on implementation. A practical limitation is the availability of the required characteristic impedance levels, particularly in antenna array feed structures.
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Synchronous reluctance machines (SynRMs) are a good alternative for traction and industrial applications due to their good power density, low cost and high efficiency. However, they suffer from high torque ripple, low power factor and poor high speed performance due to their singly excited nature. To overcome these challenges, rotor geometries are optimized to get a low torque ripple and ferrite magnets are inserted in the flux barriers to get a higher power factor and a better high speed performance. Thi...
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Citation Formats
F. Çoğun, “Design of stepped impedance transformers with large number of sections.,” Middle East Technical University, 1984.