采用新加权系数改进天线阵列近场聚焦

2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014) Pub Date : 2014-11-13 DOI:10.1109/WIVEC.2014.6953228

Shun-Ping Chen

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引用次数: 4

摘要

在近场中，随着波束转向角的增大，天线阵侧瓣增大。传统的技术，如非均匀但对称的振幅照明，以确保一定的旁瓣抑制水平，不能充分减少近场情况下的旁瓣。本文结合Dolph Chebyshev，提出了一种新的附加非对称振幅加权函数，该函数可以在几乎整个旁瓣范围内进一步提高旁瓣抑制，在φ = 0°和φ = 180°时，当转向角为15°和30°时，可以达到-35 dB左右。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Improved near field focusing of antenna arrays with novel weighting coefficients

Antenna arrays show increased side lobes at increasing beam steering angles in the near field. Conventional techniques such as inhomogenous but symmetric amplitude illuminations, to assure a certain side lobe suppression level, do not reduce the side lobes sufficiently for the near field case. In this paper, a new additional asymmetric amplitude weighting function in combination with Dolph Chebyshev is proposed which can further improve the side lobe suppression almost over the whole side lobe range, to approximately -35 dB at φ = 0° and φ = 180° for the steering angle of 15° and 30°.

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来源期刊

2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)

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