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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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發(fā)表于 2025-3-21 16:23:56 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Electromagnetic Sources and Electromagnetic Fields
編輯Gaobiao Xiao
視頻videohttp://file.papertrans.cn/307/306032/306032.mp4
概述Provides nonuniform transmission line models for electromagnetic radiation in free space or radially varying dielectrics.Modifies spherical harmonic expansions for electromagnetic fields, potentials,
叢書名稱Modern Antenna
圖書封面Titlebook: Electromagnetic Sources and Electromagnetic Fields; Gaobiao Xiao Book 2024 The Editor(s) (if applicable) and The Author(s), under exclusiv
描述.This book presents a modified spherical harmonic expansion method in which the electromagnetic fields and their sources are expanded with the same set of spherical vector basis functions in a similar procedure.?Explicit expressions for the electromagnetic fields, potentials, energies, and the related Green’s functions are derived for the spherical modes in both frequency domain and time domain. Based on the formulation, the relationships between the electromagnetic sources, the electromagnetic far fields, and the electromagnetic near fields are clearly revealed. In particular, a nonuniform transmission line model is developed for intuitively characterizing the total radiation process. The introduction of the cutoff radius and the cutoff mode degree provides a simple reference for determining the numbers of degrees of freedom of the fields associated with sources in a bounded region. Based on the theory, an efficient hybrid method for synthesizing antenna arrays with complex footprints is proposed and demonstrated with several numerical examples. Effective algorithms are also developed for reconstructing the radiating part of the current sources..This book is intended for researche
出版日期Book 2024
關(guān)鍵詞Spherical harmonic expansion; Nonuniform transmission line model; Reactive electromagnetic energy; Ante
版次1
doihttps://doi.org/10.1007/978-981-99-9449-6
isbn_softcover978-981-99-9451-9
isbn_ebook978-981-99-9449-6Series ISSN 2731-7986 Series E-ISSN 2731-7994
issn_series 2731-7986
copyrightThe Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapor
The information of publication is updating

書目名稱Electromagnetic Sources and Electromagnetic Fields影響因子(影響力)




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發(fā)表于 2025-3-21 20:40:00 | 只看該作者
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 definiti
板凳
發(fā)表于 2025-3-22 01:49:25 | 只看該作者
Non-relativistic Radiation of a Moving Charge,onal magnetic field in the space and stores a magnetic energy. The electric energy and the magnetic energy associated with a uniformly moving charge may be called velocity energy. The Coulomb energy and the velocity energy are considered as being attached to the charge. When the charge moves uniform
地板
發(fā)表于 2025-3-22 06:15:07 | 只看該作者
Spherical Harmonic Expansion,ies of a radiating system, and to predict the applicability boundaries and limitations of the numerical methods. In this chapter, we discuss the spherical harmonic expansion solutions to the fields of a bounded source in free space. We treat the three-dimensional space in vacuum as a two-port radial
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發(fā)表于 2025-3-22 15:02:54 | 只看該作者
Pulse Radiator in Free Space,rformances with respect to the source can be examined rigorously. By analogy with the electromagnetic energy concepts in the classical charged particle theory and using the relationships derived from the Maxwell equations, the total electromagnetic energy of a pulse radiator is divided into three pa
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發(fā)表于 2025-3-23 01:58:10 | 只看該作者
Electromagnetic Sources and Electromagnetic Fields
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發(fā)表于 2025-3-23 07:03:33 | 只看該作者
Non-relativistic Radiation of a Moving Charge,energy of a distributed source. In order to reveal the connection between the electromagnetic field of the charged particle and the macroscopic electromagnetic field of the distributed source, we are to derive the electromagnetic potential, field and energy of a moving charge from the Maxwell equati
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