ID 原文 译文
13354 因此所设计天线能够满足平方公里(the Square Kilometer Array, SKA)中频阵超宽带、低成本、大扫描角以及高极化隔离度的要求。 Therefore, the design of antenna can fulfill the requirements of the Square Kilometer Array(SKA) in the ultra-wideband intermediate frequency,low cost, large scan angle and high polarization isolation.
13355 提出了一种基于混合蝴蝶交配优化(butterfly mating optimization, BMO)算法抑制阵列天线互耦的新方法。 A novel method of mutual coupling suppression is proposed for mutual coupling suppression of array antennas.
13356 该方法首先根据建立的阵列天线的非线性优化模型,对优化变量进行分组排序,利用二进制BMO算法对模型馈线进行稀布优化。 The proposed method is based on hybrid butterfly mating optimization(BMO). Firstly, a nonlinear optimization model is established. The optimization variables are grouped and sorted. Binary BMO(BBMO) algorithm is used to optimize the sparse of the model feeders.
13357 其次,为平衡全局搜索和局部寻优能力,在标准BMO算法的基础上赋予蝴蝶个体均匀混沌初始化和自适应变位移机制,对天线结构进一步优化。 Then, in order to balance global search and local optimization, butterflies in standard BMO algorithm are empowered by the even chaos initialization and adaptive movement mechanism. The structure of the antenna is further optimized.
13358 将所提方法应用于二元甚低频(very low frequency, VLF)紧耦合伞形天线阵,结果表明：所提方法能够有效改善相控时阵元的辐射电阻,组阵增益接近理论值,提升了阵列天线的波束合成性能。 The proposed method is employed to the model of the tightly two-element umbrella arrays. Results show that this method can improve the radiation resistance of phased array elements. The array gains are close to the theoretical optimum. The beam forming performance of the array antenna is improved effectively.
13359 该方法为大型阵列天线互耦抑制提供了新思路。 This method provides a novel idea for mutual coupling suppression of large array antennas.
13360 针对当前已有圆极化微带天线有效带宽窄、尺寸大等缺陷的现状,设计了一种应用于2.4 GHz无线传感网络的宽带圆极化微带天线。 Aiming at the current status that the existing circularly polarized microstrip antenna has defects such as narrow effective bandwidth and large size, a wideband circularly polarized microstrip antenna for 2.4 GHz wireless sensor network is designed.
13361 采用Ansoft HFSS建立了天线的模型,并对其主要结构参数进行了仿真分析,最终推导出了天线的最优结构参数。 The model of the antenna is established by Ansoft HFSS, and the main structural parameters of the antenna are simulated and analyzed. Finally, the optimal structural parameters of the antenna are derived.
13362 最优结构参数下的仿真结果显示,天线的-10 dB阻抗带宽达到了63.5%,3 dB轴比(axial ratio,AR)带宽达到了17.5%。 Under the optimal structural parameters, the simulation results show that the-10 dB impedance bandwidth of the antenna reaches 63.5%, the 3 dB axial ratio bandwidth reaches 17.5%.
13363 同时,采用矢量网络分析仪对天线实物进行了回波损耗测试,测试结果与仿真结果吻合。 At the same time, a vector network analyzer is also used to test the return loss of the antenna, and the test results were consistent with the simulation results.