volume | PIER Journals

2017-03-03

Side Lobe Level Reduction of Any Type of Linear Equally Spaced Array Using the Method of Convolution

Mohammad G. H. Alijani,

Dr. Mohammad G. H. Alijani

NELORG Institute

NELORG

Iran

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Mohammad Hassan Neshati,

Dr. Mohammad Hassan Neshati

Department of Electrical Engineering

Ferdowsi university of Mashhad

Iran

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Mahdi Boozari

Dr. Mahdi Boozari

Department of Electrical Engineering

Sharif University of Technology

Iran

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Progress In Electromagnetics Research Letters, Vol. 66, 79-84, 2017

doi:10.2528/PIERL16121608

Abstract

In most applications of antenna arrays, side lobe levels (SLLs) are commonly unwanted. Especially, the first side lobe level which determines maximum SLL is the main source of electromagnetic interference (EMI), and hence, it should be lowered. A procedure of finding the optimum side lobe-minimizing weights for an arbitrary linear equally spaced array is derived, which holds for any scan direction, beam width, and type of antenna element used. In this science article, the use of convolution procedure and the time scaling property reduces the side lobe level for any type of linear equally spaced array. Results show that by this procedure, the side lobe level is reduced about two times or even more.

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Mohammad G. H. Alijani, Mohammad Hassan Neshati, and Mahdi Boozari, "Side Lobe Level Reduction of Any Type of Linear Equally Spaced Array Using the Method of Convolution," Progress In Electromagnetics Research Letters, Vol. 66, 79-84, 2017.
doi:10.2528/PIERL16121608

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