ID 原文 译文
13824 实际探测证明, 在天线背部加填有吸波材料的金属屏蔽罩, 可以有效降低来自上方的干扰, 分离直达波和有用信号, 提高探测精度。 The actual disturbance above ground was shielded effectively. The detection accuracy is also improved, and the direct wave and reflecting waves are effectively separated. Compared with the atenna without shielding cavity, the detection results are greatly improved.
13825 针对IEC 61000-4-2中规定的典型静电放电 (electrostatic discharge, ESD) 电流波形存在拟合多样性且不易通过具体电路实现这一问题, 采用求解电路状态方程组的方法对四种ESD模拟器电路进行了计算。 According to the typical electrostatic discharge, namely as electrostatic discharge (ESD) , current waveform in IEC 61000-4-2, the current waveform has a variety of fitting and is not easy to realize this problem through specific circuit. The method of solving circuit state equations is used to calculate the four ESD simulator circuits.
13826 得到了四种指数形式的ESD电流解析表达式, 绘制了相应的电流曲线, 分别讨论了四种ESD模拟器电路产生的ESD电流波形解析式的连续性和可导性, 并对不同电路产生的ESD电流波形与IEC 61000-4-2标准规定电流波形之间的差异进行了对比分析。 And four exponential forms of ESD current analytical expression are obtained. The corresponding current curve is drawn. The continuity and conductance of the analytical expression of the ESD current waveform produced by four ESD simulator circuits are discussed respectively. The difference between the ESD current waveform produced by different circuits and the difference between the current waveform of the IEC 61000-4-2 standard and the current waveform of the IEC is compared.
13827 结果表明不同ESD电路产生的电流波形的四个主要指标符合IEC 61000-4-2标准规定, 但由于电路的拓扑结构和元件参数不同, 求得的电流波形解析式的连续性和可导性存在差异。 The results show that four main current waveforms produced by different ESD circuits are in accordance with the IEC 61000-4-2 standard.However, the continuity and conductance of the current waveforms are different because of the different topology and component parameters of the circuit.
13828 因此在选择ESD模型时, 应根据实际的人体参数和放电枪参数确定合适的电路结构。 Therefore, the actual human parameters and discharge guns should be based on the actual parameters when selecting the ESD model. The parameters determine the appropriate circuit structure.
13829 该计算方法适用于求解集总参数电路, 为ESD电磁脉冲辐射场仿真计算提供了新的电流解析式。 The calculation method is suitable for solving the lumped parameter circuit and provides a new current analytical formula for the simulation and calculation of the ESD electromagnetic pulse radiation field.
13830 介绍了一款工作于Ku频段的低互耦星载相控阵天线的设计方法, 采用在阵列单元周围加载金属腔体的方式降低阵列单元之间的互耦效应, 从而改善相控阵天线的方向图扫描特性。 Design of a phased array antenna with lower mutual coupling for the satellite application operating in Ku band is introduced in this paper.By loading the metal cavity around the array element, the mutual coupling effect can be reduced and then improve the scanning performance of the phased array antenna.
13831 针对相控阵天线在二维±60°范围内低副瓣波束扫描的特点, 对5×5子阵和16×16阵列进行了研究, 验证了阵列的互耦降低方法的有效性和电性能。 With this method, the characteristics of phased array antenna with ±60°scanning in two dimensions are analyzed.To verify this design, 5×5 subarray and 16×16 array are studied.
13832 研究结果表明：相控阵单元间互耦小于-16dB, 而相控阵单元在15.116.8GHz电压驻波比小于2, 相对带宽11%；在频率为f0±500 MHz范围内, E面3dB波束宽度大于98°, 5dB波束宽度大于113°, H面3dB波束宽度大于113°, 5dB波束宽度大于122°。 The measured results show that the mutual coupling between the elements is less than-16 dB. The array element has an impedance bandwidth (VSWR≤2) of 11% (15.1—16.8 GHz) .In addition, within the bandwidth of f0±500 MHz, the E-plane of the radiation pattern has a 3 dB beam-width of more than 113°and a 5 dB beamwidth of more than 122°, while the H-plane has a 3 dB beam-width of more than 98°and a 5 dB beam-width of more than 113°.
13833 在仿真设计的基础上, 研制了子阵天线试验样机, 测试结果与设计结果吻合良好, 证明了降低互耦方法的有效性, 天线单元方向图满足在±60°范围内波束扫描的要求, 可应用于相控阵雷达系统。 Based on the simulation, aprototype of the 5×5 array antenna is fabricated herein.The measured results agree well with the simulated ones, which proves the effectiveness of the design. The beam width of the proposed element fully meets the requirement of a phased array antenna with a ±60°scanning range and can be used in phased radar system.