查询词典 antenna array

Tofind a target and determine its position,any radar station has to basically consist of a transmitter,a receiver,an antenna,an antenna duplexer,a display and a timer.

为了要发现目标和确定其位置，任何雷达站基本上都必须包括发射机、接收机、天线、天线转换开关、显示器和定时装置。

A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.

控制器处理从双工器接收的RF信号和发送到双工器的RF信号，控制拉杆天线驱动器，以便在谈话状态下或一旦用户尝试呼叫时，伸出拉杆天线。

SCR-521. The most significant improvement in the ASE was the useof an antenna duplexer, which permitted the use of just one send-receive antenna, rather than two separate units.This yielded appreciable improvement in aircraft performance because of drastically reduced wind drag.

ASE上最重大的改进的使用了天线双工机，使得可以只使用一个收发天线而不是两个，这使飞行时的风阻明显减少，飞行性能得到显著的提高。

This hybrid antenna consists of a CPW-fed inductive slot antenna and three different shapes (I-, L-, and F-shaped) of the dual monopole antennas.

此混合型天线是由共面波导馈入电感性槽孔天线(CPW-fed Inductive Slot Antenna)分别和I、L和F三种不同形状的双单极天线组合而成。

This invention relates to a circular small UHF antenna with high dielectric constant and its processing method, among which, the UHF antenna characterizes that 1,it is composed of a radiation plate, a feed point and a medium chip, 2, the radiation plate is closely adhered to the top surface of the medium chip, the bottom surface is the metal ground face, the chip and the radiation plate is rectangle or square, 3, the feed point is at the 1/3 place of the diagonal line of the rectangular or square radiation plate apart from the top point.

本发明涉及一种高介电常数圆极化小型超高频天线及其制作方法。UHF天线特征在于(1)所述的超高频天线是由辐射贴片、馈电点和介质基片组成；(2)辐射贴片紧贴在介质基片的上表面，介质基片的下表面为金属接地面；介质基片和辐射贴片呈矩形或正方形；(3)馈电点位于矩形或正方形的辐射贴片的对角线离顶点的1/3处。其制作方法是采用ε≥38高均匀性陶瓷基片，再结合丝网印刷技术完成厚膜焙银后形成辐射贴片，然后再圆极化。具有制作工艺成熟、体积小及使用灵活等特点。

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。

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。

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