A study of Dolph-Chebyshev spherical phased antenna array for wave propagation and aerospace applications

Senthil Kumar, - and Priyesh, - and Singh, Hema and Jha, RM (2009) A study of Dolph-Chebyshev spherical phased antenna array for wave propagation and aerospace applications. Technical Report. National Aerospace Laboratories, Bangalore.

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Abstract

The spherical antenna array is a preferred choice for the applications where wide angle scanning is desired. The Dolph-Chebyshev method for beampattern design provides a minimum null-to-null beamwidth fora given sidelobe level. This distribution has direct control over the main-lobe width and maximum sidelobe level. In this report, an attempt is made to generate radiation pattern of spherical antenna array using Dolph-Chebyshev's amplitude distribution. The amplitude excitations are obtained by exploiting the similarity of Legendre polynomials, used for beampattern of spherical array and Chebyshev polynomials, used for Dolph-Chebyshev pattern. This has wide application in wave propagation and aerospace engineering.

Item Type: Proj.Doc/Technical Report (Technical Report)
Uncontrolled Keywords: Spherical array;Dolph-Chebyshev beampattern;Chebyshev coefficient;Legendre coefficient;Radiation pattern
Subjects: ENGINEERING > Electronics and Electrical Engineering
Division/Department: Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division
Depositing User: Mr. Guest NAL
Date Deposited: 22 Jul 2010 09:10
Last Modified: 22 Jul 2010 09:10
URI: http://nal-ir.nal.res.in/id/eprint/8629

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