射频

Key words: Radio Frequency Identification technology smart labels because a large quantity of data storage, read and write speed, data safe, easy to use, such as reading and writing distance notable features are being rapidly recognized and widely used for identification, and special management, materials tracking, security, traffic, animal management, and other fields.

射频识别技术的智能标签因其数据存储量大、读写速度快、数据安全性高、使用方便、读写距离远等显著的特点，正得到快速的认可，并广泛应用于身份识别、物流管理、物品追踪、防伪、交通、动物管理等领域。

The series SMC connectors with screw –coupling mechanism ,have character of small size light weight ,reliable connect and vibration-proof ,for the connect RF coaxial-cable in electronic equipment and instruments ,and can be interchangeable with the same –type connectors of abroad.

该系列产品具有体积小、重量轻、连接可靠、抗振性能好等特点，供无线电设备和仪器中连接射频同轴电缆用。

The series TNC connectors with screw – coupling mechanism , have characteristic of reliable connect and vibration-proof , for the connect RF coaxial – cables in electronic equipments and instruments and can be interchangeable with the same-type connectors of abroad.

该产品具有连接可靠、抗震性能好等特点，供无线电设备和仪器中连接射频同轴电缆用。

According to the mine shaft tunnel to the microwave frequency band in the certain degree to the channel characteristic, the radio frequency selects the microwave frequency band 433MHz to make the carrier, enables the wireless signal to carry on the effective dissemination in the line of sight distance, has the transmission stability to be good, external interference small merit.

根据井下隧道对微波频段在一定程度上相当于通道的特点，射频选用微波频段的433MHz做载波，使无线信号能够在视线距离内的进行有效传播，具有传输稳定性好，受外界干扰小的优点。

A top loaded antenna is provided that is composed of a triangular-shaped resonator and a dielectric substrate.

一种顶端负载之类梯形平面天线，其中，顶端负载之类梯形平面天线形成在一基板表面，并藕接至一射频电路。

The basic theory of transmission lines, engaged in RF design engineers can reference.

详细说明：传输线基本理论，从事射频设计的工程师可以参考一下。

global scale article track and information share can be achieved by combining radio frequency identification technology with internet and mobile communications network technology.

无线射频识别技术与互联网、移动通信网络等技术结合应用，可以实现全球范围内物品跟踪与信息共享。

RFID is a kind of wireless communications, which is developing very quickly in recent years. There are many successful cases in application, such as entrance guard safety, track and trace management and medical regulation.

无线射频识别技术为近发展应用非常迅速的一种无线通讯技术，举凡门禁安全管理、货物追踪管理及医疗管制等方面均有非常多成功应用的案例。

The effects of root-divided alternative irrigation on growth, physiological characteristics and yield of flue-cured tobacco were studied under artificial water control by FDR.

利用射频反射仪，在人工控水条件下研究了分根交替灌溉对烤烟生长发育、生理特性及烟叶产量和品质的影响。

The GSM mobile terminal RF test mainly aims at the testing of the GSM mobile terminal in three kinds of performance parameters as RF power, modulation quality and receiving sensitivity.

GSM 移动终端射频测试主要针对GSM 移动终端的三大类性能指标即发射功率、调制质量和接收灵敏度进行评估。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。