ID 原文 译文
23835 采用该平面变压器的 LCLC 谐振变换器,输入电压为 40 V,输出电压为 4800 V,输出功率为 295 W,开关频率为 500 kHz。 The input voltage of the converter is 40 V, the output voltage is 4800 V, the output power is 295 W and the switching frequency is 500 kHz.
23836 仿真结果与实验结果均表明,采用平面变压器,可以提高开关频率,缩小电源体积,提高功率密度,从而降低整个行波管放大器的体积和重量。 Conclusions can be drawn that with the planar transformers, the switching frequency can be increased and the volume of the power supplies can be reduced.
23837 同时同频全双工通信的射频域自干扰抑制量增加,导致数字域自干扰信号的信噪比下降,使得数字域自干扰抑制量减少。 The self-interference signal to noise ratio in digital domain decreases as the amount of RF self-interference cancellation increases in Co-time Co-frequency Full Duplex (CCFD) communications. The amount of digital self-interference cancellation decreases as the digital self-interference power decreases.
23838 针对这一现实问题,该文分析了数字域自干扰抑制能力与射频域自干扰抑制量之间的量化关系,在典型数字域估计算法下,给出了具体关系的闭合解。 The impact of the amount of RF self-interference cancellation on digital self-interference cancellation is analyzed.
23839 分析与仿真结果表明,全双工通信在执行射频域联合数字域自干扰抑制时,射频域自干扰抑制的增大量总是大于数字域自干扰抑制能力的减小量,当射频域自干扰抑制较小时,数字域自干扰抑制将更有效; The digital self-interference cancellation is analyzed in this paper based on LS and MMSE channel estimation. It is shown that the decrease in the amount of digital self-interference cancellation is always less than the increase in RF self- interference cancellation when applying digital cancellation after RF cancellation in full duplex communications. Applying digital cancellation after RF cancellation is more useful when RF cancellation delivers poor suppression.
23840 过大的射频域自干扰抑制量将造成数字域自干扰抑制性能的损失。 The performance of digital self-interference cancellation will degrade when RF cancellation achieves large suppression.
23841 该文设计了一种风车形双频带阻型频率选择表面(FSS) ,并将其加载到双频微带天线地板,实现宽带雷达散射截面(RCS)减缩。 A dual stop band Frequency Selective Surface (FSS) in windmill-liked shape is proposed, which achieves wide Rader Cross Section (RCS) reduction by applying FSS on the ground of the dualband microstrip antenna.
23842 风车形 FSS 每一角都由两个相差 90°的半方环组成,通过电偶极子谐振和风车 FSS 高次模谐振实现双频阻带。 Each corner of the FSS is formed by combining two semi-suqares which have 90° of rotation between each semi-square. The dual stop bands are the results of the resonance of the electric dipole and the higher order mode effect.
23843 仿真和实测结果表明,将该 FSS 单元加载到双频微带天线地板后,在 5.20 GHz 处,天线 E面、H 面前向增益基本保持不变;在 10.41 GHz 处,天线 E 面、H 面前向增益提高了 1.8 dBi; The simulation and measurement results show that the gain of E plane and H plane at 5.20 GHz is maintained, while the gain of E plane and H plane at 10.41 GHz are increased by 1.8 dBi, simultaneously.
23844 同时,天线单站RCS 1.0~16.8 GHz 宽带内减缩效果明显,其中 x 极化波下最大缩减量达到 28.3 dB, y 极化波下最大减缩量达到36.2 dB。 The antenna's monostatic RCS reduction is obviously observed in a wide frequency band ranging from 1.0 GHz to 16.8 GHz. What's more, the maximum value is 28.3 dB under x polarization and 36.2 dB under y polarization, respectively.