查询词典 antenna

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。

Jack, S-Indicator, Bass, Treble, 6 Memories, Sweep, BFO, Keypad, Clock-Timer, Tilt Stand, Up-Down Tuning, Sleep, Antenna Trimmer, Antenna Terminals, Record Jack, Dial Lamp, Dial Lamp Switch, Rec.

杰克，第S -指标，低音，高音， 6月的回忆，打扫， bfo ，键盘，时钟计时器，倾斜的立场，直至向下微调，睡眠，微调天线，天线终端，记录千斤顶，拨号灯，拨号灯开关，接收。

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。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。