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DESIGN OF A RECONFIGURABLE ANTENNA ARRAY WITH DISCRETE PHASE SHIFTERS USING DIFFERENTIAL EVOLUTION ALGORITHM

By X. Li and M. Yin

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Abstract:
The reconfigurable design problem is to find the element that will result in a sector pattern main beam with side lobes. The same excitation amplitudes apply to the array with zero-phase that should be in a high directivity, low side lobe pencil shaped main beam. Multi-beam antenna arrays have important applications in communications and radar. This paper presents a new method of designing a reconfigurable antenna array with quantized phase excitations using a new evolutionary algorithm called differential evolution (DE). In order to reduce the effect of mutual coupling among the antenna-array elements, the dynamic range ratio is minimized. Additionally, compared with the continuous realization and subsequent quantization, experimental results indicate better performance of the discrete realization of the phase-excitation value of the proposed algorithm.

Citation:
X. Li and M. Yin, "Design of a reconfigurable antenna array with discrete phase shifters using differential evolution algorithm," Progress In Electromagnetics Research B, Vol. 31, 29-43, 2011.
doi:10.2528/PIERB11032902

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