Equivalent circuits of two proposed electromagnetic stop band filters have been developed . and their parameters have been optimized using this method 本文对两个新提出的电磁阻带结构滤波器建立了等效电路，并用该方法优化了相应的参数。
With a broaden and likely direct band gap , porous silicon has a different band structure to that of the bulk silicon . thus the porous silicon can emit at room temperature 多孔硅改变了体硅的能带结构，使禁带展宽，并由间接带隙向直接带隙转变，实现了室温发光。
2 the energy structures of galnp / gaalinp bulk material , quantum well , multi - quantum wells and strained quantum well were theoretically analyzed and calculated 2利用k ? p能带计算的近似理论，分别分析和计算了gainp体材料，量子阱，多量子阱以及弹性应变下的能带结构。
This course has a three part group project assignment which covers the ( 1 ) physical structure , ( 2 ) the phonon spectra , and the ( 3 ) band structure of a semiconductor 本课程含有一个具有三个组成部分的群体设计作业，覆盖半导体的： ( 1 )物理结构， （ 2 ）声子谱，以及（ 3 ）带结构。
This course has a three part group project assignment which covers the ( 1 ) physical structure , ( 2 ) the phonon spectra , and the ( 3 ) band structure of a semiconductor 本课程含有一个具有三个组成部分的小组设计作业，覆盖半导体的： ( 1 )物理结构， （ 2 ）声子谱，以及（ 3 ）带结构。
The energy position of main von hove singularity contacts with its tube - diameter and chirality . based on the band structures , we study the electronic effective masses of single - wall carbon nanotubes 基于单壁碳纳米管的能带结构，我们还讨论了单壁碳纳米管中电子的有效质量。
With a broad and likely direct band gap , porous silicon has a different band structure from that of the bulk silicon . thus the porous silicon can emit visible light at room temperature 多孔硅改变了本体硅的能带结构，使禁带宽度展宽，并由间接禁带向直接禁带转变，实现了室温发光。
In this paper , researches based on one - - dimen - sional photonic cystal and its app1ications are developed . in theory , the finite - - difference time - - domain ( fdtd ) method is re - searched 在理论工作中，研究了时域有限差分法理论，利用时域有限差分法建立了研究一维光子晶体能带结构的模型。
Microstrip structures have been widely used , the microstrip antennas and mmic in wireless mobile communication and phased radar are becoming a active research 分层微带结构已得到了非常广泛的应用，在无线移动通信和相控阵雷达中应用的微带天线和单片微波集成电路mmic正在成为一个研究和开发的热点课题。
Based on former researchers " works , artificial neural network method is introduced to the analysis of electromagnetic stop band structure to fulfill fast analysis in this dissertation 本文所做的工作就是在前人研究工作的基础上，将人工神经网络方法引入到电磁阻带结构的分析中，实现它们的快速分析。
