| ID | 原文 | 译文 |
| 13404 | 模拟结果表明:NO+及水化聚合离子NO+(H2O)n、H+(H2O)n等是低电离层正离子的主要成分;以CO-3及O-3为主的负离子成分仅在80 km以下高度占优,导致在较低高度电子密度远小于离子密度。 | The simulation shows that NO+, NO+hydration and H+hydration are the primary components of the positive ions in the whole altitude, while CO-3and O-3are dominant only below the altitude of 80 km, which results that the electron density is much less than ions. |
| 13405 | 以100°E不同纬度(5°N、25°N、45°N)为例,与国际参考电离层(international ionosphere reference 2016,IRI-2016)模型进行比较,结果表明该物理模型能够较好地描述中低纬度低电离层电子密度随高度变化、周日变化等形态学特征。 | Furthermore, the comparison is conducted between the physical model and international ionosphere reference 2016 (IRI-2016) at three locations (5°N,25°N, 45°N)along the 100°E, which demonstrates that this physical model is able to represents the morphological characteristics of altitudinal variability, diurnal variability of low altitude ionosphere at mid-low latitudes. |
| 13406 | 设计了一款适用于高铁平台卫星通信相控阵天线的高性能天线罩。 | A high performance radome for satellite communication phased array antenna on high speed rail platform is designed in this paper. |
| 13407 | 该天线罩针对载体应用环境,设计了双向对称、低剖面的气动外形,以满足载体高速双向对开时低空气阻力的要求。 | The proposed antenna radome has an ultralow profile and a symmetric aerodynamic structure, which satisfies the demand of low air resistance for bidirectional high-speed carrier. |
| 13408 | 同时根据卫星通信相控阵天线波束扫描的特点,设计了变厚度夹层结构,以实现天线罩对任意极化方向的电磁波宽角入射时高透波率的电性能。 | Based on the beam-scanning requirement of the adopted phased array antenna, a sandwich radome structure with variable thickness of the core layer is designed for the realization of high transmission rate at large incident angles. |
| 13409 | 以Ku频段为例,根据设计结果进行了实物制作和测试验证,测试结果显示在10.5～13 GHz频率范围内,采用垂直极化波和水平极化波分别照射时,天线罩在0～70°的入射角范围内,透波率均保持在80%以上,同时天线罩对相控阵扫描波束的指向误差维持在±0.5°范围内。 | An engineering prototype at Ku satellite communication band is co-designed, manufactured and measured. Over the 2.5 GHz operating bandwidth from 10.5 GHz to 13.0 GHz, for arbitrary polarization direction, the measured transmission rate is maintained above 80% through an incident angle range of 0-70°. Meanwhile, the pointing error of the radome to the phased array scanning beam is maintained within the range of ±0.5 degrees. |
| 13410 | 为了抑制同轴线外导体表面存在的寄生电流,设计并研究了基于自适应遗传算法的寄生电流抑制结构。 | In order to suppress the parasitic current on the outer conductor of electrically coaxial cables, a structure for parasitic current reduction is designed and researched based on adaptive genetic algorithm. |
| 13411 | 该结构是一个与同轴线外导体相连且两侧有五对对称I型开槽的金属板,在开槽处加载集总电容以实现小型化要求。 | The structure consists of a metallic sheet which is electrically connected to the out conductor of coaxial cable, with five pairs of symmetrical I-shaped slots embedded. Lumped capacitors are loaded to miniaturize the entire size. |
| 13412 | 该结构工作原理可等效为一组串联LC谐振电路,当有外部因素导致同轴线外导体表面有寄生电流存在时,该等效电路呈现的高阻抗特性会抑制寄生电流的流经。 | The operation of the entire structure is similar to a series of parallel LC resonators. When the parasitic current flows on the outer conductor of the coaxial cable, the equivalent parallel LC circuit which exhibits a high impedance path can suppress the current efficiently. |
| 13413 | 为了选取合适的电容,提出了一种自适应遗传算法来优化计算加载电容的大小,该遗传算法实现了交叉率和变异率的非线性自适应调整,与标准算法相比,该算法有更优的收敛速度以及鲁棒性。 | An adaptive genetic algorithm is presented which can be used to optimize the values of lumped capacitors, and the crossover probability and mutation probability can adjust adaptively and nonlinearly, the analysis results show its good convergence speed and strong robusticity compared with standard genetic algorithm. |