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| Anisotropic Radiation Characteristics of Electric Dipole |
| Received:April 19, 2017 Revised:July 15, 2017 |
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| DOI：10.7643/ issn.1672-9242.2017.07.004 |
| KeyWord:electromagnetic radiation electric dipole scales theory. |
| Author | Institution |
| LI Jin |
1.Department of Computer and Electronic Information, Shaanxi Xueqian Normal University, Xi′an , China; 2.College of Electronic Information, Northwestern Polytechnical University, Xi′an , China |
| FENG Xiao-yi |
College of Electronic Information, Northwestern Polytechnical University, Xi′an , China |
| WANG Ming-jun |
College of Electronic Information, Xianyang Normal University, Xianyang , China |
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| Abstract: |
| Objective To study radiation property and radiation law of electromagnetic sources in homogeneous anisotropic medium. Methods Based on the direction multi length standard theory of EM waves, the non-homogeneous differential equation of scalar potential was established. By solving this equation, explicit exact representations of scalar potential and magnetic vector potential were developed respectively; and their validity were demonstrated through comparing them with the available literatures. Results The radiating field of an electric dipole was acquired in the presence of anisotropic medium, and this obtained radiating field was in agreement with that in the available reference as the material being the isotropic one. The radiation characteristics of the electric dipole were simulated and analyzed physically. Conclusion In the anisotropic medium, the radiation of an electric dipole has the anisotropic property. When radiation is observed in one direction, the larger the dielectric constant in the direction vertical to the observing direction is, the more intensified the radiation is. It provides a theoretical basis for engineering optimization design of radar and antenna in anisotropic media such as magnetized plasma. |
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