ID 原文 译文
15755 在高速磁悬浮列车毫米波车地通信系统中,要求车载天线具有小型化、宽频带、圆极化和辐射扇形波束等特点。 In the high － speed maglev train millimeter－wave vehicle－ to －ground communication system，the required characteristics of vehicle antenna should be miniaturized，broadband，circular polarized，and sector beam．
15756 为了更好地满足这些要求,提出了一种中心馈电的小型化间隙波导缝隙阵列天线,采用环形缝隙单元辐射右旋圆极化波,通过脊间隙波导一分三十二路功分网络实现等幅同相馈电。 To meet the requirements，a center－fed miniaturized gap waveguide slot array antenna was proposed． The annular slot unit was used to radiate right － handed circularly polarized waves． And the same feed amplitude and phase was realized by a ridge gap waveguide with one－32－way power divider．
15757 采用全波电磁仿真软件设计了一款中心频率为38 GHz的2×16单元间隙波导缝隙阵列天线,并进行了实验测试。 A gap waveguide slot array antenna of 32－unit with the central frequency of 38 GHz was designed by using full－wave electromagnetic simulation software． The antenna was fabricated and measured．
15758 测试结果表明：在37～39 GHz频带范围内,天线驻波比小于1.42,增益大于21 dBi,轴比小于3 dB,俯仰面波瓣宽度为4.1°～4.3°,方位面波瓣宽度为34.7°～36.5°,满足毫米波车地通信系统车载天线的设计需求。 The measured results show that from 37 GHz to 39 GHz the voltage standing wave ratio of the antenna is less than 1. 42，the gainis greater than 21 dBi，the axial ratio is less than 3 dB，the half power beam width in elevation plane is 4. 1°－4. 3°，and the half power beam width in azimuth plane is 34. 7°－36. 5°． The designed antenna could meet the designed requirements of the millimeter wave vehicle－to－ground communication system．
15759 二维材料又称二维原子晶体材料,其结构特性使载流子迁移和热量扩散都被限制在二维平面内,因此令这种材料拥有许多优异的性质,如高载流子迁移率、导电性、生物相容性以及带隙可调谐性。 Two dimensional materials，also known as two －dimensional atomic crystal materials，can constrain the carriermigration and heat transfer in 2D plane． Therefore，these materials have many unique properties，such as high carriermobility，electrical conductivity，biocompatibility and band gap tunability．
15760 在相关的制备手法上,也从单一的机械剥落法发展至液相剥落、化学剥落、超临界流体剥落、化学气相沉积(CVD)和外延生长等。 For preparation，the original single mechanicalexfoliation method has many derivatives and alternatives，such as liquid exfoliation，chemical exfoliation，supercritical fluidexfoliation，chemical vapor deposition ( CVD) and epitaxial growth．
15761 本文归纳了近些年来一些二维材料新成员的制备手段与应用前景,并对当前存在的问题和未来发展的方向做了展望,为基于二维材料的设计和应用提供了参考。 This paper summarizes the preparation methods andapplication prospects of some new two－dimensional materials in recent years，and prospects the current urgent problems andfuture development direction，which provides a reference for the design and application of two－dimensional materials．
15762 太赫兹超材料具有非电离辐射特性,且对弱共振敏感,在生物传感应用中具有优异的性能。 Terahertz ( THz) metamaterials have the characteristics of non－ionizing radiation and good sensitivity to weak resonance，which exhibits excellent performance in biosensor applications．
15763 针对目前太赫兹波段生物传感器灵敏度仍需提高的需求,提出了一种在柔性聚酰亚胺电介质上制备的平面阵列法诺不对称开口环谐振器。 To meet the needs of improving the sensitivity of THz biosensors，a planar array of Fano asymmetric split ring resonator，which was fabricated on a flexible polyimidedielectric，was proposed．
15764 该传感器对附着其表面的待测生物样本高度敏感。 The sensor is highly sensitive to the biological sample attached at the surface． The simulation resultindicates that the sensitivity，quality factor and FOM value of the flexible metamaterial biosensor can reach 1018 GHz /ＲIU，21，2. 21，respectively．