| 1. | Analysis of effects of trains on cutoff frequency rectangular tunnel with ridged waveguides method
列车对矩形隧道电磁波传输影响带脊波导分析 |
| 2. | The specification is that the cutoff frequency must be more than 15mhz , the maximum passband ripple must be 0 . 2db and the minimum stopband attenuation must be 40db
该滤波器要求截止频率大于15mhz ，通带最大纹波为0 . 2db ，阻带最小衰减为40db 。 |
| 3. | The relationship between time delays and cutoff frequency of open loop and the result that the longer the delays , the lower the cutoff frequency of open loop and the tracking precision are educed
得出延迟越大，系统可实现的开环截止频率越小，跟踪精度越低的结论。 |
| 4. | Using a strained si layer as a channel in cmosfet may increase the mobility of carriers and thus enhance the device ’ s performance considerably such as transconductance and cutoff frequency
在sige虚拟衬底上生长应变si层做器件沟道,将大大增加载流子的迁移率,从而提高器件的跨导和其他性能。 |
| 5. | As a result , the cutoff frequency of sbd is limited at a lower level . now , we can grow sub - micro film of silicon using uhv / cvd technology . then we make an original device sbd of high frequency
现在，我们浙江大学硅材料国家重点实验室利用uhv cvd技术，生长出亚微米厚的薄硅外延层，在此外延层上研制出高频肖特基二极管原型器件。 |
| 6. | The faculae arise with change of the cutoff frequency when the wave - guide transforms from symmetry to asymmetry . for each pattern rank of the planar wave - guide , the light with the cutoff frequency change will be leaked out and captured by the ccd camera
对存在于对称平面波导中的各个模次的光，将有的光被泄漏，而ccd所摄到的则是其中被反射的一部分。 |
| 7. | The researches have proved the current mode superior to the voltage mode in high - frequency applications . in the paper a general integrator is completed to synthesize a bilinear si filter with a cutoff frequency of 17 . 2mhz
电流模技术的研究已经证明其高频应用中具有优于电压模技术的特性，文中对通用积分器加以完善，推导出双线性变换的开关电流滤波器，其截止频率达到17 . 2mhz 。 |
| 8. | The results also indicate that , in a piece of gain medium , the cutoff frequency , " the most quickly growing frequency " and the integral exponential gain are variables of the beam intensity , medium gain coefficient and propagation distance
在考虑了介质的增益后，截止空间频率、最快增长频率以及最大增长因子不再像原始b - t理论中那样保持不变，它成了和光强、介质增益系数及传播距离有关的一个量。 |
| 9. | In the paper a gmc filter with a cutoff frequency of 29 . 8mhz is implemented . an effective improvement is made in cmfb ( common mode feedback ) through using a differential amplifier with four inputs . transconductors are tuned through comparing two voltages , which helps to stabilize the cutoff frequency
文中实现了跨导电容滤波器，其截止频率达到29 . 8mhz ；采用四输入端的差分放大器使共模反馈得到了有效的改善；通过简单的电压比较实现跨导器的调谐，有助于稳定截止频率。 |
| 10. | In the paper four usual transformations from s - domain to z - domain are introduced to show the superiority of the bilinear transformation in high - frequency applications . then a novel sc architecture is produced to finish a filter with a cutoff frequency of 17 . 8mhz . the accurate bilinear result is reached by dual - rate sampling
文中介绍了四种常用的s域到z域的变换，说明双线性变换在高频应用的优点；然后，运用一种新颖的开关电容结构组成滤波器，通过双采样的原理导出准确的双线性变换，其截止频率达到17 . 8mhz 。 |
