天线

The resonance frequencies of the spiral line and meander line printed on the FR-4 with dielectric permittivity of 4.4 are combined to realize the wide frequency band.

芯片天线将FR-4介质(介电常数为4.4)上的曲折线和螺旋线相结合，两者分别产生谐振频段进行叠加从而实现天线宽频工作特性。

The hybrid GA combined with multi-port microwave network parameters is used to analyze the electric properties of multiple-tuned antenna system. The electric property of each working state of the antenna system is calculated.

采用混合遗传算法结合多端口等效微波网络参数的方法，对多组倒L形山谷天线进行多路调谐的研究，求解了天线系统在各个工作状态下的电参数。

This paper focuses on the multiuser detection in CDMA system, which includes SISO and MIMO systems.

这篇论文的研究的是CDMA系统中的多用户接收的问题，包括单天线系统和多天线系统。

Muti antennae GPS/Gyro integrated navigation system is studied too in this paper. Using single difference GPS carrier phase observations and quaternion error, state equation and measurement equation is established for muti antennae GPS/Gyro integrated navigation system.

本文也对多天线GPS/Gyro组合捷联航姿系统进行了研究，利用单差载波相位测量的方法，建立了基于四元数误差的多天线GPS与Gyro组合航姿系统的状态方程和量测方程。

The characteristics of the three main parts of mono-pulse slotantennas——longitudinal radiating slot, center-inclined slot and magic T using couplingslot, are analyzed. Also the influence of the design parameters, such as the length and width of the slot etc., are analyzed. The engineering curves of design are given, and some beneficial conclusions are gained too. These also give powerful supports for the design of slot antennas.

针对毫米波单脉冲波导缝隙天线的三个主要组成部分——波导宽边辐射纵缝、波导宽边中心斜缝和宽边缝隙耦合魔T的特性及其各项设计参数(如缝隙长度、宽度、半高波导、全高波导等)对性能的影响进行了较为全面、详细的分析，给出了相应的工程设计曲线，得到了一些有益的结论，为高性能波导缝隙阵列天线的设计提供了有力的参考。

Especially at those critical touters that have huge aggregate traffic toward the gateway,more elements are needed not only for the traffic relay but also for the interference suppression.

因为对于不同的路由节点，对天线单元的需求是不一样的；尤其是那些有着巨大的汇聚通讯流量的路由转发节点，更多的天线单元不仅能增加并发传输，也可以用来提高对周围无线干扰的抑制作用。

Therefore, in order to improve the coupling efficiency, the practical antennas in tokamak are longer ones.

因此，为了改善耦合效率，托卡马克装置中实际使用的天线一般都采用长天线。

This detector systems is fully self-contained in a sleek aluminum case and includes the transmitter, transmitting antenna with stand, receiver with neck strap,"SCAN GUN" receiving antenna, rechargeable gel cell battery with 110V charger, marker flags and user's manual.

该探测系统是完全装置在一个铝箱子里，里面包含传输器，传输天线，接收器，扫描枪接收天线，110伏的充电电池，标记小旗子和用户手册。

The ML-90 Magnetic Loop Antenna is without doubt the best type of antenna for NVIS (near vertical incidence skywave) operations.

目前从世界范围看，唯一能够实现NVIS传播的就是单电磁环天线，也称为半环天线。

Several designs of MEMS millimeter-wave phase shifters are presented in this paper.

MEMS毫米波相移器是MEMS毫米波相控阵天线的关键部件之一，它的性能直接决定了毫米波相控阵天线的性能。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。