Reduced Sidelobes for Butler-Matrix-Fed Linear Arrays

机译：Butler-matrix-Fed线性阵列减少旁瓣

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The report shows that simple transposition of the elements of a linear array fed by Butler matrix can be used to improve the sidelobe level without significant degradation of the other characteristics of the array. The beams remain collimated with gain equal to N times element gain, where N is the number of elements in the array. Beam crossover level is lowered slightly, but not so much as would be the case for a conventionally tapered aperture distribution. Improved sidelobes are obtained for N > or = 14, and data are presented for N as high as 50. Specifically, sidelobe levels of 15.54 db, 16.54 db, 17.86 db, and 18.56 db are obtained for N = 18, 31, 37, and 44, respectively. Although the improvement is modest for low N, it appears that the available improvement increases directly with N. (Author)

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Shelton, J. P.;
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年度 1968
页码 p.1-15
总页数 15
原文格式 PDF
正文语种 eng
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关键词
Antenna arrays ; Antenna lobes ; Linear systems ; Antenna feeds ; Antenna apertures ; Performance(Engineering);

机译：天线阵列;天线波瓣;线性系统;天线馈电;天线孔径;性能（工程）;

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Reduced Sidelobes for Butler-Matrix-Fed Linear Arrays

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