New antenna weighting method for adaptable beamwidth with zero sidelobe constraints

Electronics and Communications in Japan (Part I: Communications) Pub Date : 2007-04-20 DOI:10.1002/ecja.20370

Junichiro Suzuki, Yasuharu Masuda, Mitsuyoshi Shinonaga, Shinkichi Nishimoto

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Abstract

For sidelobe suppression design of antennas, weighting with window functions has been traditionally used. The antenna gain is degraded if a low sidelobe level is sought, so that expansion of the antenna beamwidth is inevitable. Also, there have been discussions of using the convergent calculation in the derivation of a window function that realizes desired characteristics such as sidelobe-free conditions, but it has not been clear whether the theoretically maximum antenna gain is realized. This paper presents a method of analytical derivation of a weight vector satisfying the maximum achievable antenna gain while the desired beamwidth is obtained under the null sidelobe constraint for the sidelobe region output. In addition, we demonstrate the effectiveness of the method by simulation examples. © 2007 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 90(9): 35–44, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.20370

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零旁瓣约束下自适应波束宽度天线加权新方法

在天线旁瓣抑制设计中，传统上采用窗函数加权。如果寻求低旁瓣电平，天线增益就会降低，因此天线波束宽度的扩大是不可避免的。此外，也有讨论使用收敛计算的窗口函数的推导，以实现所需的特性，如无副瓣条件，但还不清楚是否实现了理论上最大的天线增益。本文提出了一种解析推导的方法，在旁瓣区域输出的零旁瓣约束下，在满足最大可达天线增益的情况下，得到期望的波束宽度。最后，通过仿真算例验证了该方法的有效性。©2007 Wiley期刊公司电子工程学报，2009,29 (3):344 - 344;在线发表于Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002 / ecja.20370

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Electronics and Communications in Japan (Part I: Communications)

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