The proposed antenna design by manufacturing on a double-layer FR4 board, The antenna is mainly composed of a rectangular radiating patch with a meandered slit. Due to the slit branch1 and branch2 are constructed, and the 50Ω microstrip line feed at the bottom edge of the radiate pattern. By the design can resonat multi-band. We can employ coupling between ground plane and branch1 to increase the bandwidth. The resulting antenna is able to operate in the GSM, DCS, PCS, UMTS and WiMAX bands.
本文所提出之天线设计制作在一双层FR4板上，天线射主体由下方嵌入一弯曲的槽缝，此槽缝将天线的结构分为共振径branch1与branch2[4]，再由正下方馈入50Ω属微带线，如此设计可共振出多频带，且用下层接地属面与上层branch1之间的电磁耦合效应调整阻抗匹配，此方式可有效的增加频宽，使其可操作於GSM-900、DCS-1800、PCS-1900、UMTS、WiMAX等动通讯多频带。
Finally, a rectangular dielectric resonator antenna located at the electromagnetic band gap structure is studied by using proposed algorithm.
文中还用这种方法计算了位于电磁带隙结构上的矩形介质谐振器天线的方向图。
The proposed antenna consists of a rectangular metal patch on a printed circuit board fed by a 50- coplanar waveguide. By cutting a C-shaped slot in the rectangular radiating patch, a frequency band notch will be created. The proposed antenna yields an impedance bandwidth of 3.1-10.6GHz with VSWR, except the bandwidth of 5-6GHz for WLAN.
天线采用印刷电路板上的矩形贴片作为辐射单元，并由同一面上的共面波导馈电，通过在矩形贴片上开一个C形槽来实现陷波功能，电磁仿真软件Ansoft HFSS10的仿真结果显示，合适地选择C形槽的尺寸可以调整陷波的中心频率和带宽。
The paper introduces the basic methods and principle of electromagnetic waves propagation of UHF band in empty rectangular entry, and gives the formulas of electromagnetic waves attenuation, then it discusses the electromagnetic transmission characteristic in the entry with these formulas.
介绍了UHF频段在空矩形巷道中电磁波传播的基本方法及原理，给出了电磁波衰减计算公式，应用这些公式讨论了巷道中的电磁传输特性。
A reflection-type liquid crystal test cell prepared with a K-band rectangular waveguide is used to determine the dielectric constant of LC materials.
利用矩形波导管和向量分析仪，测量了几种液晶材料在26.5-40 GHz波段的介电常数。
To solve the problem, a method used to analyze the proximity effect in rectangular loss transmission line is proposed and applined in full transverse electromagnetic frecuency Additionally, AC resistances are calculated to correct the parameters in telegraphist`s equation, so it is feasible to do transmission characteristics analysis in wide band.
针对传统磁准静态方法无法进行高频段邻近效应分析的缺陷，提出一种可适用于横电磁波下整个频段的矩形有损传输线邻近效应分析方法，并推导了邻近效应影响下的交流阻抗，进而对电报方程的阻抗参数进行修正，为宽频域信号传输特性分析提供了新思路。
Secondly, the design of triple-band monopole antenna using inverted-L structure for operating in the 2.5, 3.5 and 5.5 GHz WiMAX band is presented. Finally, a novel printed monopole antenna is shown. In this design, the open-ended of a rectangular ring obtained multiband to satisfy the dual-network WLAN/WiMAX services.
第二种设计为三频平面天线设计，此天线设计藉由使用倒L形槽缝结构，可操作於三频段无线广域网路系统；最后一种设计为印刷式单极天线设计，此天线主要结构是采用简单的开路式矩形环，不但拥有多频段的特性，也成功的符合双无线通讯网路系统操作。
This paper designs a S-band feed system for HPM antenna, which consists of a dual-mode conical horn and a rectangular-circular mode convertor.
本文设计了一种S波段高功率微波天线的馈源系统，该系统由双模圆锥喇叭和矩-圆模式转换器两部分组成。
The interdigital coupled lines were used to adjust the tilter bandwidth for achieving ultra-wideband characteristics; Through the rectangular ring resonator change the filter surface current flow, increase the out-band inhibiting ability, adjust the filter insertion loss and return loss, improve the passband performance.
通过叉指耦合线来调节滤波器的带宽，实现超宽带特性；用矩形环谐振器改变滤波器表面电流流向，增大滤波器带外抑制能力，调节滤波器的插入损耗和反射损耗，改善通带性能。
By taking the rectangular metal patch on a printed circuit board as the radiation element and by cutting a C-shaped slot in the rectangular patch, a frequency band notch is implemented.
该天线采用印刷电路板上的矩形贴片作为辐射单元，通过在矩形贴片上开一个C形槽来实现陷波功能。
In this paper, the ideals, bi-ideals and dual-principal bi-ideals of rectangular band, completely simple semigroup, semilattice, Clifford semigroup, matrix unit semigroup, bicyclic semigroup are depicted.
本文给出了矩形带，完全单半群，半格，clifford半群，矩阵单位半群的理想，双理想与双主双理想的刻画。
The Design of an X-Band Racon Antenna with Rectangular Waveguide
X波段矩形波导雷达信标天线的设计
By inserting a slot at the edge of the rectangular slot on the ground plane and loading a C-shaped resonator near the microstrip line, dual band-notched characteristic at the central frequency at3.
通过在地板上的矩形槽的边缘开槽和在馈线旁加载C形谐振器，该天线实现在中心频率3。
X-band rectangular waveguide phased array antenna
X波段矩形波导相控阵天线
Optimum design of an overmoded TEM coaxial to TE 10 rectangular waveguide mode converter at S band using HFSS software and network theory is presented.
用HFSS软件和网络理论对S波段同轴TEM-矩形TE10模式变换器进行了优化设计。
The Realization of Rectangular wave Filter Based on the Photonic Crystals Impurity Band
基于杂质带的光子晶体矩形波形滤波器的实现
An Engineering Design of a Broad-band High Power Rectangular Hermetic Window
宽带高功率矩形密封窗的工程设计
New Structure of Broad Band Coaxial-Rectangular Waveguide Transition in UHF Band
UHF宽带同轴-矩形波导转换器新结构
Several kinds of seal structure of Al 2O 3 broad band high power rectangular ceramic hermetic windows were introduced and recommended in this paper, and the main points of seal technique were introduced briefly.
推荐了几种氧化铝陶瓷宽带高功率矩形密封窗的封接结构，并对其封接工艺要领进行了简要介绍。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.4% less than that for a rectangular sampling lattice.
当连续图像信号的频带处于一个圆形区域之内时，正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13.4%。