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A Method of Optimizing Sidelobe Level of Circular Array Based on DEA

Chunlin Han

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Abstract

Circular arrays are widely used because of their pattern characteristics,but their sidelobe levels are high compared with the mainlobe leve1.For the antenna elements of uniform circular array,this paper applys differential evolution algorithm to optimize the sidelobe level by separately performing phase-only,amplitude-only,and phase-amplitude pattern synthesis.The simulation result indicates that these methods can reduce the sidelobe level of circle array effectively and provide a beneficial reference to solve these kinds of problems.

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What this paper is about

Circular arrays are widely used because of their pattern characteristics,but their sidelobe levels are high compared with the mainlobe leve1.For the antenna elements of uniform circular array,this paper applys differential evolution algorithm to optimize the sidelobe level by separately performing phase-only,amplitude-only,and phase-amplitude pattern synthesis.The simulation result indicates that these methods can reduce the sidelobe level of circle array effectively and provide a beneficial reference to solve these kinds of problems.

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Available abstract

Circular arrays are widely used because of their pattern characteristics,but their sidelobe levels are high compared with the mainlobe leve1.For the antenna elements of uniform circular array,this paper applys differential evolution algorithm to optimize the sidelobe level by separately performing phase-only,amplitude-only,and phase-amplitude pattern synthesis.The simulation result indicates that these methods can reduce the sidelobe level of circle array effectively and provide a beneficial reference to solve these kinds of problems.

Key concepts: Amplitude, Circular buffer, Phase (matter), Antenna array, Antenna (radio), Differential (mechanical device), Differential evolution, Algorithm

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