ID 原文 译文
51877 首先用平面波展(PWG)方法分析了这种光路由的理论及其结构特性，然后用时域有限差分(FDTD)方法数值模拟了该类器件的导光波特性及光场能量传播特性。 The guided wave characteristics and the energy propagation characteristics of the light field are numerically simulated by using the Plane Wave Expansion(PWE) method and the Finite Difference Time Domain(FDTD) method, respectively.
51878 所设计的硅基多波长路由器具有透射效率高和整体尺寸超小(总长度在20μm左右)的特点，能同时实现1. 31、1. 55和1. 65μm光波长的路由功能。 The designed wavelength router has the characteristics of high transmission efficiency, ultra-small overall size(total length about 20 μm), which can realize the routing function of 1. 31, 1. 55 and 1. 65 μm optical wavelength at the same time.
51879 针对传统漏波天线只能辐射线极化波的问题，文章提出了一种新型圆极化漏波天线。 To solve the problem that the traditional leaky wave antenna can only radiate linearly polarized waves, a new type of circularly polarized leaky wave antenna is proposed.
51880 其由均匀金属条组成等离子体波导， The plasma waveguide is composed of uniform metal strips.
51881 通过将圆形贴片周期性和非对称地加载在波导的两侧，天线的波束扫描角可以有效展宽。 The corrugated circular patches are loaded on either side of the Spoof Surface Plasmons(SSP) waveguide periodically and asymmetrically, and the scanning angle of the antenna beam can be effectively broadened.
51882 另外，在圆形贴片单元中引入微扰，可以实现圆极化性能。 Besides, circular polarization performance is obtained by introducing perturbation on the radiating elements.
51883 仿真结果表明，该天线的阻抗带宽为43.5%(<-10 dB)，3 dB的轴比带宽为31.3%， The simulated results show that the antenna exhibits an impedance bandwidth of 43. 5%(<-10 dB) and a 3 dB axial-ratio bandwidth of 31. 3%.
51884 频率为4. 5～7. 0 GHz时，波束扫描范围为120～70°， The impedance bandwidth of the beam steers is varied from 120 to 70 ° as frequency varies from 4. 5 to 7. 0 GHz.
51885 在频率范围内，天线的最大增益达到了12.48 dB。 The antenna maximum gain is 12. 48 dB in the whole band.
51886 该圆极化漏波天线结构简单、易于加工且性能指标稳定，可应用于无线通信和传感系统中。 Featured with a simple structure, easy fabrication and stable performance, the leaky wave antenna can be applied in wireless communication and sensor systems.