带线

But, most of the traditional mushroom structures are restricted to only single EBG frequency design. In this thesis, we propose a novel concept about the interlaced periodic arrayal of the mushroom structure with the suspending microstrip line. By the simulation and measurement result, it is verified that the mushroom structure with the suspending microstrip line can reveal multi-band EBG characteristic.

而传统的蕈状结构的应用，多半只有操作在单一频率的电磁带隙特性，而本论文就针对了蕈状结构结合悬置微带线架构的电磁带隙特性研究，并提出了一种新的穿插周期排列的概念，透过电路模拟与实作量测的验证，我们成功的让蕈状结构结合悬置微带线的架构展现出多频电磁带隙的特性，并且，我们利用了这一个新概念设计了一种新型的微波电路。

In this thesis, CAD formulas are obtained by synthetic asymptote for three structures, First, we obtain the simple CAD formulas of a microstrip line on two-layer substrate with loss

采用"合成渐近"法，本文首先推导出两层有耗介质上的微带线单位长度电容的CAD公式，从而可以计算出微带线特征阻抗和传播常数

Two novel integrated slotantennas are developed by adopting the two novel transition circuits of microstripline to slot line and coplanar waveguide to slot line.The measure results show the ul-tra-wide bandcharacteristic of the two kinds of integrated slot antennas.

采用微带线到槽线，共面波导到槽线的两种新颖UWB过渡方式研制出了两种新型的UWB印刷集成天线，实验测量结果显示了这两种天线的UWB特性。

A microsrip quasi-traveling wave fuze antenna is designed,working in millimeter-wave used for missile body fore-end which utilizing the loss characteristic of microstrip line,eliminates the reflected wave without the matched load in the design.

设计了一种用于弹体前端的毫米波微带准行波引信天线，此线阵利用微带线自身的损耗特性消除反射波从而省去了匹配负载。

The 90 and 180 phase shift bits are of reflection type, using Lange coupler to realize the separation between the incident and reflection signals. According to process rules of the GaAs MMIC product line, we properly designed the circuit layout. In order to reduce the overall chip size, the transmission lines are folded with sufficient spacing to avoid interline coupling.

结合实际MMIC工艺线，合理设计移相器电路版图，折叠微带线并留出足够大的线间距，以避免线间寄生耦合的发生，并折叠兰格耦合器使90°和180°移相位的尺寸与其它相位的芯片尺寸保持一致。

The different width and length of Hilbert curve geometries were investigated by finite element method. The computation results show that the DGS rejects the signal at two frequencies 2.43 GHz and 7.11 GHz from 0~9 GHz with more than -15 dB suppression. Q factors of the Hilbert curve DGS is bigger than that of conventional DGS.

通过有限元法对不同Hilbert曲线宽度和长度的DGS结构微带线进行计算，计算结果表明，该结构在0~9 GHz频段内表现出2.43 GHz和7.11 GHz这2个谐振频率，对应频率的通带反射损耗低于-15 dB，并且阻带特性在谐振频率处比传统DGS微带线有更高的 Q 值。

Chapter 1 is a brief introduction on the significance of millimeter wave multi-frequency source, its development level at home and abroad, and the main contents of this thesis.

第二章分析了微带线的基本特性，介绍了它的有效介电常数和特性阻抗的设计公式，并对微带不连续性及平行耦合微带线进行分析。

Also, by using a novel offset architecture, as opposed to completely overlapped architecture, for the differential transmission pair, a 33% reduction of thickness is achieved in the design of a miniaturized common-mode filter with multi-layer LTCC technology. In view of increasing need of high-speed clock and data circuits to control their skew problems, a design of LTCC delay line is then conducted. To improve the waveform distortion associated with the microstrip/stripline-type meander delay line, a miniaturized high-frequency 3-D delay line with grounded guard traces is introduced. By means of 3-D structure, the 233 ps delay time, which requires extra board space amounting to a factor of 2.34 by stripline type meander delay line, can be shrunk into an EIA 1206 form factor.

为因应高速时脉及高速线路的不断发展，用於控制讯号、时脉同步的延迟线路需求日益增加，接著讨论的题目便是应用低温共烧陶瓷制程技术设计多层的延迟线路元件，为了改善在微带线/带线型折线式延迟线路波形失真的问题，论文中提出以接地的防护线来设计小型化的三维多层延迟线路元件，比较应用带线型折线式延迟线路和应用三维架构设计的延迟线路元件，同样提供233 ps的延迟时间，多层架构设计之延迟线路可缩小至EIA 1206 的尺寸，省下2.34倍的电路板面积。

In this thesis, the radiation principle and the structure of slot antenna are studied and the impacts on its performance of every structure parameter in a slot antenna design are analyzed. On this foundation, a design plan of planar slot array antennas is proposed. The design has some structural feature as follows:(1) with different dielectric layers and microstrip line structure to guide the electromagnetic wave effectively;(2) the feeding network formed of microstrip line can match with the radiating slots expediently;(3) in order to increase the bandwidth of the antenna, the wider slot and branched feeding microstrip line are adopted to form a double resonance.

本文对缝隙辐射的原理、缝隙天线的结构作了探讨，分析了缝隙天线设计中各结构参数对其性能的影响，并在此基础上提出一种平面型缝隙天线的设计方案，它具有以下的特点：(1)采用分层结构，以不同的介电系数和微带线结构形成对电磁波的有效引导；(2)利用微带线构成馈电网络可以方便地与辐射缝隙进行匹配；(3)增大缝隙的宽度，并利用馈电微带线的枝节形成双谐振，以增加天线的带宽。

Surgical Suture with Needle Attachment, Non-absorbable Surgical Suture with/without Needle Attachment and Sterile Scalpel Blade have been certified by CE certification, and Medical Sewing Needle, Medical Scalpel Blade and Surgical Suture with Needle Attachment have been certified by CMD certification..

带线缝合针、非吸收性外科缝线带针和不带针产品、手术刀片通过CE产品认证。医用缝合针、手术刀片、带线缝合针通过CMD产品认证。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。