ID |
原文 |
译文 |
41266 |
研究表明,差分模型能够表征脉冲驱动方式下LED电热特性,其理论预测值与实测值误差约为4℃,基本能够满足工程应用要求。 |
The results show that the difference model can characterize the electro-thermal characteristics of pulse-driven LED, and the error between the predicted value and the measured value is about 4℃, which can basically meet the requirements of engineering applications. |
41267 |
更有意义的是,采用差分模型,能够分析在特定驱动条件下,LED热容、热阻等参数对结温的影响,为不同驱动模式下LED个性化结构设计提供了理论基础。 |
Furthermore, this model can be used to analyze the influence of LED heat capacity and thermal resistance on junction temperature under specific driving conditions, which provides a theoretical basis for LED design under different driving modes. |
41268 |
近年来,氧化铟锡(ITO)薄膜因其可实现介电常数近零(Epsilon-Near-Zero,ENZ)且易于调制的特性,已经成为非线性光学和微纳光学等领域的研究热点。 |
ITO films have become a research hotspot in the fields of nonlinear optics and micro-nano optics because of its ability to achieve epsilon-near-zero and easy modulation.In this paper, ITO films were prepared on silicon substrates with the RF magnetron sputtering method. |
41269 |
文章先使用射频磁控溅射法在硅基底上制备ITO薄膜,再通过椭圆偏振光谱仪测试并拟合其光学参数,探究了本底真空度、溅射功率、溅射气压、衬底温度和膜厚等因素对ITO薄膜ENZ波长的调节机制。 |
Then the optical parameters are tested and fitted by ellipsometer, which explore the adjustment mechanism of the ENZ wavelength of ITO thin films by factors such as background vacuum, sputtering power, sputtering pressure, substrate temperature and film thickness. |
41270 |
通过优化工艺,使ITO薄膜最短ENZ波长蓝移至1 094.4nm,突破了以往文献报道的极限。 |
And by optimizing the process, the shortest ENZ wavelength of the ITO film is blue-shifted to1 094.4 nm, breaking the limit of previous reports. |
41271 |
该研究将ITO薄膜的ENZ波长延伸至近红外短波区域,有望实现微纳光电器件相关领域向短波方向的应用拓展。 |
This research extends the ENZ wavelength of ITO films to the near-infrared short-wave region, and will realize the application expansion of micro-nano optoelectronic devices in the short-wave direction. |
41272 |
光学波束合成技术是利用光信号作为载波携带射频信息而实现的一种新型的宽带射频波束合成技术,即用光信号来传输以及分配射频信号,实现射频信号的光波控制。 |
Optical beamforming technology is a new type of broadband RF beamforming technology, which uses optical signal as the carrier to carry RF information, which means it uses optical signal to transmit and distribute RF signal to realize the control of RF signal. |
41273 |
文章介绍了基于微波光子的光学波束合成原理,重点介绍了光非相干和光相干波束合成架构, |
In this paper, the principle of optical beamforming based on microwave photonics is introduced, focusing on the optical incoherent beamforming architecture and optical coherent beamforming architecture. |
41274 |
通过详细的理论公式推导以及软件仿真,表明上述两种光学波束合成架构可对多天线接收信号实现信号合成。 |
Through detailed theoretical formula derivation and software simulation, it is shown that the above two kinds of optical beamforming architectures can realize the signal synthesis for the received signals of multiple antennas. |
41275 |
针对目前大阵列天线单元系统对光学波束合成技术的迫切需求,利用光相干和非相干波束合成的各自优势,提出了一种适用于千量级天线阵列规模的光学波束合成架构, |
In view of the urgent demand of large array antenna units system for optical beamforming technology, proposed is an optical beamforming architecture suitable for the scale of thousand antennas by using the advantages of optical coherent and incoherent beamforming. |