波导

The present invention relates to a kind of tunable plasma resonant cavity for PCVD optical fiber perform rod processing machine. The tunable plasma resonant cavity includes cylindrical resonant cavity casing and cut-off waveguides set on two ends of the casing, and features the tuning piston, which is set on one end of the cylindrical resonant cavity and has middle part with through hole and back end stretched beyond the casing.

本发明涉及一种用于PCVD光纤预制棒加工机床的可调谐等离子体谐振腔，包括有圆柱型谐振腔壳体，在圆柱型谐振腔壳体的两端设置截止波导，其不同之处在于在圆柱型谐振腔腔体的一端安设调谐活塞，调谐活塞的中部开设通孔，后端延伸至圆柱型谐振腔壳体外端。

The InGaAs/GaAs/AlGaAs strained layer quantum well lasers were grown by molecular beam epitaxy. Ridge waveguide InGaAs/GaAs/AlGaAs strained layer quantum well lasers operating in the fundamental transverse mode up to 140 mW at a wavelength of 980 nm were fabricated.

利用分子束外延生长了InGaAs/GaAs/AlGaAs应变量子阱激光器材料并研制出基横模输出功率大于140 mW，激射波长为980 nm的脊形波导应变量子阱激光器，其微分量子效率为0.8 W/A，垂直和平行结平面方向远场发散角分别为28°和6.8°。

Furthermore, the calculation precision can be satisfied the need of engineering application in waveguide. So it is of important application values that producing and improving of the new method and application in waveguide and resonance cavity for enriching guide theory, analysis and calculation of guide performances in engineering applications.

因此，该方法的完善与计算精度的改进以及在波导和谐振腔问题中的应用研究，不仅对于丰富电磁理论有着重要的意义，而且对于解决实际电磁工程问题也有着重要的应用价值。

It is amended and perfected so that it can be used to analyze the transmission characteristics of the arbitrary metallic waveguide filled with symmetrical and non-symmetrical dielectric, metallic resonance cavity with the arbitrary shapes, and other boundary value problems of the electromagnetic field.

本文对上述方法进行了修正、丰富和完善，使其可以较方便地分析填充均匀和非均匀介质的任意横截面金属波导的传输性能和任意形状金属谐振腔的特性以及其它一些电磁场边值问题。

Based on our formula of width equivalence of SIW and RW, the formula of length equivalence of SIW and RW has been derived, which is expected to find wide applications in the engineering design of SIW filter and resonance cavity.

根据已知的SIW和RW之间的宽度等效公式，通过对传播常数的分析，推导出SIW和等效的矩形波导之间的长度等效公式，这个公式在计算SIW短路结构和谐振腔时很实用。

The flexible nature of ASOC technology means it can also be utilized to provide application specific, high functionality, high value devices including Arrayed Waveguide Gratings and Variable Optical Attenuators.

ASOC技术的灵活性意味着该项技术同样可以应用于提供偏向于应用的、功能广泛的高价值元器件包括阵列波导光栅以及可调式光衰减器。

Several kinds of new structure bandpass filters with wideband performance are proposed, and the theoretical design, prototype deve...

提出了多种新结构的金属波导宽带滤波器，进行了理论设计、加工研制、实验和计算机仿真。

This approach can treat a wide range of waveguide problems with arbitrarily-shaped crosssection and regions of inhomogeneity, anisotropy, and loss or gain.

这种办法可以治疗一系列范围广泛的问题，波导任意形截面和地区的不均匀性，各向异性，与得失。

A series of microwave filters and diplexers are designed by optimization and fabricated based on HFSS and the programs written by myself.A combline SIR cross-coupled filter is designed by HFSS. Cha.5 presented the design of dual-band bandpass filter and corner diplexer.

第六章利用自编程序设计了几种较为新颖的基片集成波导滤波器，其中包括多频带阻滤波器、交叉耦合吸收式滤波器和带Triplet拓扑的广义切比雪夫平面双工器。

Microwave passive components: Isolators, ring, filters, attenuators, couplers, diplexers, antennas, connectors, etc.

微波元器件：电阻、电容、电子管、集成电路、高频、负载/终端、微带、波导器件、大功率器件、微波/射频电缆组件、同轴连接器、同轴电缆、毫米波器件、射频器件等

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。