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题名: Broadband and high efficiency single-layer reflectarray using circular ring attached two sets of phase-delay lines
作者: Xue, Fei; Wang, Hongjian; Wang, Yinghui; Zhang, Longjun
作者部门: 微波遥感部
通讯作者: Xue, Fei (07083003xuefei@163.com)
刊名: Progress In Electromagnetics Research M
ISSN号: 1937-8726
出版日期: 2018
卷号: 66, 页码:193-202
收录类别: EI
英文摘要: A new single-layer element structure for broadband operation is presented. The element is composed of a circular ring attached two sets of phase-delay lines with the opposite direction of rotation. The demission of circular ring is fixed, and about 460reflection phase range is achieved by varying the length of the phase-delay lines. Using the proposed element, a 381-element single-layer linearly polarized reflectarray is designed, fabricated and measured. A gain of 27.5 dB is measured at 13.58 GHz with 3-dB beamwidth of about 6.8, and the corresponding aperture efficiency is 57.3%. Good radiation performances are also achieved at other frequencies. Measured results show 1.5-dB and 3-dB gain bandwidth of 47.8% (13.58–20.08 GHz) and 64% (12.08–20.78 GHz) with the center frequency of 13.58 GHz respectively, which demonstrates excellent broadband performance. Besides, high aperture efficiencies (more than 50%) are achieved in a wide frequency range (12.08–17.08 GHz). Low cross polarization and sidelobe levels are also achieved in the frequency band. © 2018, Electromagnetics Academy. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6307
Appears in Collections:微波遥感部_期刊论文

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