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A High Efficiency Reflectarray Antenna Design Based on Incident Field

Yan Chen, Hu Yang, and Taolin Liu
College of Electronic Science and Engineering,National University of Defense Technology, Changsha, 410073, China
Abstract—A single-layer reflectarray antenna operating at Ku band with Phoenix elements is presented. The element is optimized by parameter study to achieve a linear phase shift curve and sufficient phase variation range. And then, a 941-element array with linear polarization is designed. Differing from calculating wave path difference directly, the phase distribution on the reflectarray plane is calculated by exacting the phase of incident field, which indicates a more accurate phase compensation. At the configurable design stage, an off-set horn with multimode is installed and its position is optimized. The simulated results show 3-dB gain bandwidth of 28% and a maximum aperture efficiency of 64% at 13.5 GHz center efficiency.

Index Terms—Reflectarray, linear polarization, high efficiency, 3-dB bandwidth, incident field

Cite: Yan Chen, Hu Yang, and Taolin Liu, "A High Efficiency Reflectarray Antenna Design Based on Incident Field," Journal of Communications, vol. 12, no. 9, pp. 532-537, 2017. Doi: 10.12720/jcm.12.9.532-537.
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