查询词典 antenna switch

Under the symmetry antenna structure, we use fork-shaped feeding strip-line design to cause the rectangular printed monopole antenna to be possible to achieve ultra-wideband operation.

并在接地面与辐射金属片对称等大小的天线结构下，利用叉型带线馈入之设计，使得矩形印刷式单极天线可达到超宽频之操作。

A small size MMW CP microstrip antenna is designed using sequential phase rotation method in this paper.The simulation result shows that this antenna has wider impedance bandwidth and axial ratio bandwidth.

采用连续相位旋转法设计了一种四单元的小尺寸的毫米波圆极化微带天线阵列，仿真表明：该天线具有较宽的阻抗带宽和轴比带宽。

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 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。

It is obvious that 3D corner reflector antenna could be also adjusted for offset parabolas with a lower F/D if the diagram could be widen in vertical plane and narrowed in horizontal plane so that they are approximately equal to each other and at the same time retain all other good characteristics of this antenna.

显然，3D角反射器天线也必须调整才能用于低F/D的偏馈抛物面，如果它的垂直方向图必须宽，水平方向图必须窄，那么垂直和水平两者之间必须大体平衡，而同时要保持天线的其它所有良好特性。

The antenna to connect to the radio like the Motorola speaker mic we sent you and not with the wire to radio antenna jack.

连接的天线到象Motorola报告人mic的收音机我们派遣了您和不有导线的到无线电天线起重器(在收音机的边的被铸造的部分)。

At the end of this chapter, Koch curve wire is extended to common methods. The double bent wire monopole antenna is put forward and its geometry parameters are investigated. Sierpinski microstrip antenna is paid attention widely owing to its simple arts and crafts.

在第四章中，作者为了分析Sierpinski 天线，并采用基于有限积分理论的电磁仿真软件CST 对Sierpinski 分形贴片天线的多频性能作了详细的研究。

The result indicates that radiation gain and power transmission coefficient from tag antenna to chip should be considered in the first place in order to ensure the basic reading and writing distance of the tag. The way to improve power transmission coefficient is to design the tag antenna and make sure its input impedance conjugate matching to the chip input impedance.

研究结果表明，为保证标签天线的基本读写距离，在设计标签天线时，需要首先考虑天线增益和标签天线到芯片的功率传输系数，提高功率传输系数的途径就是调整标签天线与芯片的输入阻抗并使它们尽可能实现共轭匹配。

The main beam of a high gain antenna array is usually very narrow. To make the correct measurement, it must be ensured that the antenna array stands still against the rotation of a swivel table, which may lead to a measurement error.

高增益的阵列天线，其主波瓣非常的窄，所以量测时必须确保天线不会因为量测转台的转动，而导致误差产生。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48