查询词典 waveguide

For the localized waveguide resonance,the tangential electric field component Ey is seen to be concentrated entirely in the rectangular air hole region.

对于由长方形空气孔形成的局域波导共振模式，其等离子体波全部局域在整个长方形空气孔区域中。

The three main factors which influence the performance of the taper waveguide in design are analyzed.

实验研究主要是测试试制的器件，并对测试结果进行了分析，提出改进意见。

Based on orthogonal function unfolding theory, the transverse fields can be represented as a superposition of waveguide modes. And according to coupled-wave theory, the time-dependent multi-mode coupling-wave equations (or the generalized telegrapher's equations) and the coupling coefficients among the different modes were deduced. The generalized telegrapher's equations are a set of coupled one-dimensional partial differential equations for the amplitudes of the modes.

应用正交函数的展开理论，将变截面波导中的电磁场表示为横电波和横磁波本征模式的级数；然后根据耦合波理论，推导了考虑波导金属壁有限电导率的变截面波导时域多模耦合波方程组及各模式间耦合系数的表达式。

Experimental data show that when attenuation of waveguide is on the order of 0.1 db, the random error is about 1.5%, and the total error is more than 10%....

文中提出了选定线路元件参数以保证所需测量准确度的建议，实验证明这样的选择是恰当的。此外，还利用标准片移式衰减器作了总体验证。

A new kind of PC multimode waveguide on the basis of total internal reflection was studied theoretically.

理论研究了全内反射型光子晶体多模波导。

The structure beam response control method based on the traveling wave model was discussed theoretically. The theoretical traveling wave model was applied to a long thin beam with piezocrystal actuators and the traveling wave active control law for the condition of making measurement upstream and performing control downstream was derived and the control compensator formula of the flexural waveguide in the form of transcendental function was deduced.

从理论上探讨了基于行波模型的结构梁响应控制方法，在梁及压电陶瓷作动器处采用行波理论模型，导出了上游测量、下游点施加控制的行波主动控制律及相应的具有超越函数形式的控制补偿器表达式。

As the condition of Gaussian approximation for the spectral distribution of input optical signal,the expression of transmission efficiency of arrayed waveguide grating comb bandpass filter is recommended.

在输入信号光谱分布高斯近似条件下，给出了阵列波导光栅梳状带通滤波器信号通道传输效率的计算表达式和输入信号光谱宽度对阵列波导光栅梳状带通滤波器信号通道输出特性的影响。

Trapezium tunnel is a sort of familiar tunnel in the environment of railway and mine and it can be treated as waveguide.

0引 言电磁波在某种媒质中传播时，若相速度是角频率的函数，则该媒质是色散媒质。

During numerical integration the triple integral is time consuming and divergent when the number of higher waveguide modes increases.

本文首先建立波导宽边中心倾斜孤立辐射裂缝的积分方程，然后用矩量法求解得到了孤立缝的S参数及归一化等效阻抗。

Adjusting insertion depth of the tuning screw pin at any moment can reach tuning effect to make waveguide device match to load of resonant cavity well in order to adapt to everchanging equivalent load of resonant cavity in course of working so as to realize real time control of energy coupling. The invention helps to increase working accuracy and efficiency of PCVD technique, and prevent damage on system device from microwave so as to raise useful service life of system. Features are: simple structure, stable performance, convenient for fabrication.

本发明通过在谐振腔设置调谐销钉，可随时调节销钉的插入深度来达到调谐的效果，能使波导装置很好地与谐振腔负载匹配，以适应加工过程中谐振腔等效负载的不断变化，实现能量耦合的实时控制；同时有助于提高PCVD工艺的加工精度和效率，避免微波对系统器件的损坏，提高等离子体谐振腔微波系统的有效使用寿命；本发明还具有结构简单，性能稳定，便于加工和制作的特点。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。