Optimum Directivity Patterns for Linear Arrays
نویسندگان
چکیده
منابع مشابه
Optimum Directivity Patterns of Concentric Ring Arrays with Dipole Radiators for Wireless Communications
In the literature survey concentric ring arrays using isotropic radiators are reported. Sufficient data is not available to optimization of the first sidelobe level, null to null beamwidth and directivity. In this paper, the author is proposed the problem of designing concentric ring arrays with practical radiating element. The practical radiating element is considered as dipoles to achieve opt...
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A mathe matical formulation is devised for a uniformly spaced and uniformly progressively phased antenna array of a given number of isotropic ele ments such that the final radiation pattern is end fire with no large bac klobe. The pallern also has the maximum number of sidelobes of equal level, modifying the result of an earlier paper, eve n when the ele ment spacing is made arbitrarily small. ...
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The nominal directivity for uniformly spaced broadside parallel half-wave dipoles associated with a uniform excitation is evaluated. The amplitude distribution for an optimized directivity is then obtained for different numbers of elements with the separations between the dipoles as a variable. The optimum and nominal directivities are compared for different spacings of the elements. While thes...
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This paper describes the characteristics of a software developed on MatLab Scripts to obtain the radiation patterns of linear antenna arrays using dipoles as the elements. The software includes, among several other options: the analysis and design of arrays with progressive phase, arrays with non uniform amplitude excitation and arrays with non uniform separation. Some special attributes of the...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1948
ISSN: 0001-4966
DOI: 10.1121/1.1917001