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Titlebook: Electromagnetic Sources and Electromagnetic Fields; Gaobiao Xiao Book 2024 The Editor(s) (if applicable) and The Author(s), under exclusiv

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Meredith O’Connor,Jon Quach,Sharon Goldfeldze the required radiation pattern with a continuous current distribution in free space, and then spatially sample the continuous current source and realize it with discrete radiation elements. We show that the effective number of degrees of freedom (NDF) can be adopted as a useful information to obt
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Q Factor of a Radiator,y may oscillate with higher amplitude and attenuate slower. The frequency range that they can oscillate tends to be narrower. However, in practical engineering, Q factors may be defined in different ways in different problems. This chapter will give a brief introduction to the commonly used definitions of Q factors for circuits and antennas.
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Gaobiao XiaoProvides nonuniform transmission line models for electromagnetic radiation in free space or radially varying dielectrics.Modifies spherical harmonic expansions for electromagnetic fields, potentials,
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