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�������պ����ѧѧ�� 2011, Vol. 37 Issue (11) :1471-1474    DOI:
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Analysis of electromagnetic radiation for airborne very-low-frequency (VLF) dual trailing antenna in half-space
Wu Longgang, Su Donglin, Chen Jiajia, Wu Nankai*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Electromagnetic radiation characteristics of an airborne very-low-frequency (VLF) dual trailing antenna in the half-space (a space including air and seawater) were studied. The airborne VLF dual trailing antenna models in half-space were established and calculated by finite element method (FEM). The influences of the half-space to antenna radiation patterns were investigated using numerical results. In addition, through shifting feed locations (i.e., changing the ratio of long antenna and short antenna), variation trends of antenna characteristic parameters in half-space, including antenna input impedance and radiation efficiency were obtained. Good agreements of simulation results and the corresponding data announced by american naval and air development center were achieved, which validates the effectiveness and reliability of the proposed method and results. The achievements provide significance to the airborne VLF dual trailing antenna design in the future.
Keywords�� half-space   very-low-frequency   antenna   EM radiation   simulation     
Received 2011-05-26;
Fund:

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������, �ն���, �¼Ѽ�, ���Ͽ�.��ռ��л�������Ƶ˫��ҷ���ߵ�ŷ�������[J]  �������պ����ѧѧ��, 2011,V37(11): 1471-1474
Wu Longgang, Su Donglin, Chen Jiajia, Wu Nankai.Analysis of electromagnetic radiation for airborne very-low-frequency (VLF) dual trailing antenna in half-space[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(11): 1471-1474
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