ID 原文 译文
12524 辐射贴片采用圆环与五角星形嵌套迭代的 2 阶类 Sierpinski 分形结构，并采用缺陷地结构接地板以实现良好的 UWB 特性。 Theradiating patch adopts a second-order Sierpinski-like fractal structure with circular and pentagonal nested iterations, anduses the defective structure ground plate to achieve good ultra-wideband characteristics.
12525 通过在分形结构的上部添加对称倒 L 形开路枝节，在微带馈线两侧添加对称 L 形开路枝节，并在馈线处刻蚀倒 π 形窄缝隙产生了 4.5～4.8 GHz、7.2～7.8 GHz 和 8.0～8.5 GHz 三个频段的陷波特性。 By adding symmetricalinverted L-shaped open branches on the upper part of the fractal structure,and adding symmetrical L-shaped openbranches on both sides of the microstrip feeder, and etching the inverted π-shaped narrow slit at the feeder producesnotch characteristics of the 4.5–4.8 GHz, 7.2–7.8 GHz and 8.0–8.5 GHz bands.
12526 仿真和实测结果表明，天线在 3.1～18.1 GHz 的频段内，可有效抑制国际卫星波段、X 卫星波段和国际电信联盟波段等窄带系统的干扰。 The simulation and measured resultsshow that the antenna is effective in suppressing interference from narrow-band systems such as the internationalsatellite frequency band, the X band satellite and the ITU-band in the 3.1–18.1 GHz band.
12527 该天线除滤波频段内，在通带频段内有较稳定的增益和全向辐射特性，可用于各种 UWB 系统中。 In addition to the filteringfrequency band, the antenna has relatively stable gain and omnidirectional radiation characteristics in the passband, andcan be used in various ultra-wideband systems.
12528 设计了一款基于波束赋形技术的宽波束、平坦增益平面阵列天线，用于汽车角雷达系统。 A wide beam, flat gain planar array antenna based on beamforming technology is designed forautomotive angular radar systems.
12529 该阵列天线由三个 1×10 串馈线阵组成，串馈线阵采用单元不等间距分布的 Dolph-Chebyshev 天线综合法进行设计以降低副瓣。 The array antenna consists of three 1×10 series feed line arrays, which are designedby Dolph-Chebyshev antenna synthesis method with unequal spacing distribution to reduce the side lobes.
12530 为了满足汽车角雷达宽视场角（field of view，FOV）的需求，对平面阵列天线采用波束赋形技术以展宽方位面的波束宽度并提高增益的平坦度。 In order tosatisfy the needs of the automotive angle radar wide field of view (FOV), the beamforming techniques are used for the planar array antenna to broaden the beamwidth of the azimuth plane and improve the flatness of the gain.
12531 仿真与实测结果吻合较好，实测结果表明 1×10 线阵副瓣电平为−19.7 dB；3×10 平面阵列天线的方位面 3 dB 波束宽度为 106.4°，方位面增益平坦度可达−45°～45°，其最大增益为 11.3 dBi。 The simulation and the measured results agree well. The measured results show that the 1×10 line array sidelobe level is−19.7 dB; the 3×10 planar array antenna has a 3 dB beamwidth of 106.4°, and the azimuth gain flatness range can reach± 45°, the maximum gain is 11.3 dBi.
12532 利用随机耦合模型（random coupling model，RCM）预测复杂腔体电磁效应时，通常要通过测量辐射阻抗来实现，但实验过程中满足混沌腔体以及耦合通道的腔体加工、实验过程模拟等条件要求较高，且实验步骤繁琐。 When using random coupling model(RCM) to predict the electromagnetic effect of complex cavity, itis often achieved by measuring the radiation impedance. However, in the process of experiment, it is demanding to meetthe conditions of chaotic cavity, cavity processing of coupling channel, simulation of experiment process and so on, andthe experimental steps are cumbersome.
12533 为了克服上述问题，文中采用时间门方法（time gating method，TGM），通过对散射参数进行频域-时域-频域转换，结合门控函数，计算腔体辐射散射参数，并分析了门控时间对计算结果的影响.不同频段内 TGM 计算结果与实验结果的统计特性，验证了该方法的适用性。 In order to overcome the above problems, time gating method(TGM) is used tocalculate the radiation scattering parameters of the cavity by frequency domain-time domain-frequency domainconversion of scattering parameters and window selection function. The influence of gating time on the calculation results is analyzed. The applicability of this method is validated by comparing the statistical characteristics of theexperimental results and the calculated results of time gating method in different frequency bands.