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[期刊论文] 作者：Chai Wenwen,Zhang Xiaojuan,
来源：电子科学学刊：英文版 年份：2008
In this paper, the design of a planar ultra-broadband sum-and-difference network is pre-sented. This network employs a novel power divider and anti-phase balun...
[期刊论文] 作者：Chai Wenwen,Zhang Xiaojuan,
来源：电子科学学刊：英文版 年份：2008
U-slot patch antennas with ∏-shaped feed slot are studied,and numerical results based on the FDTD method are presented. The effects of varying physical paramet...
[期刊论文] 作者：Yan Zhai,Wei Chai,Wenwen Cao,Zipei Sun,Yaodong Huang,
来源：城市道桥与防洪 年份：2015
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
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