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Synthesis of phased array antenna for side lobe level reduction using the differential evolution algorithm

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Abstract

In this paper, we synthesis an array consisting of uniformly excited unequally spaced elements for reducing SLLs. A globally optimal solution for the array elements phase and position is determined by using a differential evolutionary algorithm for a given radiation pattern. Reduced side-lobe levels are observed with position-phase synthesis. The obtained results are compared with the possible two cases i.e., uniform amplitude equal phase (variable position-control) and uniform amplitude unequal phase (variable phase-control). The obtained results justify that the position-phase synthesis technique is not only reduces the side-lobe levels to (− 25.28) dB, but also preserves the advantages of both variable position-controlled synthesis and variable phase-controlled synthesis with a minimum number of array elements.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Greenfields, Vaddeswaram, Guntur, AP, 522502, India

    Ravi Tej, K. Ch. Sri Kavya & Sarat K. Kotamraju

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  1. Ravi Tej
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  2. K. Ch. Sri Kavya
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  3. Sarat K. Kotamraju
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Correspondence to Ravi Tej.

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Tej, R., Kavya, K.C.S. & Kotamraju, S.K. Synthesis of phased array antenna for side lobe level reduction using the differential evolution algorithm. Int J Speech Technol 23, 337–342 (2020). https://doi.org/10.1007/s10772-020-09701-2

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  • DOI: https://doi.org/10.1007/s10772-020-09701-2

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