天线

ABSTRACT The design theory of cylindrically conformal slotted-waveguide array antenna fed by curved waveguides is studied.

本文研究用弯波导馈电的圆柱共形波导缝隙阵列天线的设计理论。

It is important to study the antenna that can directly radiate cylindrically symmetric modes, which are generated by many high power microwave sources.

许多高功率微波源产生的微波模式都是圆波导轴对称模，因此研究轴对称模式的天线辐射技术具有重要意义。

The input impedance and radiation patterns of the probe-fed cylindrically conformal microstrip antennas with a dielectric superstrate are analyzed based on a rigorous full-wave approach.

基于严格的全波方法分析计算了介质薄层覆盖下由探针激励的圆柱共形微带天线的输入阻抗和辐射方向图。

When the aerials are down, and your spirit is covered with snows of cynicism and the ice of

当天线倒塌时，你的精神就被玩世不恭和悲观厌世的冰雪所覆盖，你就会衰老下去，即

When the aerials are down, and your spirit is covered with snows of cynicism and the ice of pessimism

当天线倒塌时，你的精神就被玩世不恭和悲观厌世的冰雪所覆盖

In this chapter proposed the repetition iteration algorithm through the training sequence and its the corresponding array data-in repetition useenlarges the TD-SCDMA channel in the iteration step, may approach theoptimum result under the short data length, take the LMS algorithm asthe example simulation result indicated this method is feasible, mayeffectively improve the TD-SCDMA system smart antenna the performance.

本章中提出的重复迭代算法通过把TD-SCDMA信道中训练序列及其对应阵列输入数据重复使用加大迭代步数，可以在短的数据长度下逼近最佳结果，以LMS算法为例的仿真结果表明该方法是可行的，可以有效改善TD-SCDMA系统智能天线的性能。

People just flying wherever they want would be a death warrant for every radio tower and power line in the country.

人们飞着去他们想去的任何地方，这会让每个电台天线塔和国家的输电线处在一击致命的危险中。

In a technology day event, we introduced an antenna supplier and a demodulator manufacturer to the TV chipmaker.

在该技术日活动中，我们介绍该天线供应商和解调器制造商给电视芯片制造商。

At last the antenna depolarization and its compensation method are discussed.

最后讨论了实际系统中，天线的去极化作用及其补偿方法。

The circular polarization at the lower resonant frequency of the dual-frequency antenna can be achieved by setting a perturbation segment at an appropriate location in the patch element, and placing the feed point on the diagonal axis.

在较低的谐振频率处圆极化的获得是通过在天线辐射单元上适当地设置摄动元素，并将馈电点移到辐射单元的对角线上。

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。