In the traditional digital identification field, we often use the IC card, magnetism card and RF card as the media.
在传统的数字识别领域中，所采用的介质多为IC卡、射频卡、磁卡等。
The RF method shortens the ion extraction time, and increases the ion extraction efficiency. It can also control the plasma density by changing the magnetic field.
共振法缩短了离子引出时间，提高了离子引出效率，并且可以通过对外加磁场的调节来控制等离子体密度。
With the growth of the wireless communication market, most of RF device manufacturers have been under the cost pressure with the appearance of many companies in the same field.
随着无线通信市场的快速增长，大多数射频器件制造厂家正在经受着这一领域新出现的众多公司所带来的成本压力。
In the field of today's wireless communication, a new trend is the technology of direct RF modulation.
在当今无线通信领域中，一个新兴的结构趋势就是发射信号的直接射频技术。
With this method, a reasonable result has been gotten through analyzing a classical structure of RF switch, and which have made up the international blankness in the related field.
并用这种方法分析了RF开关的一种经典结构，取得了不错的效果，同时填补了国际上相关领域的空白。
When the external RF frequency is much bigger than ion plasma frequency, ions answer average field.
当外加射频频率远大于离子等离子体频率，离子响应平均场，离子的密度分布几乎不随时间变化；
Such systems face an additional contribution to the inhomogeneity of the radio frequency (RF) field when high magnetic fields are applied.
当施加高磁场时，这种系统会面临对射频(RF)场不均匀性产生额外作用的问题。
The six volume set of Encyclopedia of RF and Microwave Engineering illustrates how this field has been the key to enabling technology responsible for the phenomenal growth of wireless communications.
六卷组的射频和微波工程百科全书阐明了这个领域如何成为让技术促进无线通信业迅猛发展的关键。
Because of these, SAW Filter is more and more comprehensively applied in electronic information field, especially in RF signal processing field.
正因为这样，才使SAW滤波器在电子信息领域中得到了越来越广泛的应用，特别是应用于高频端rf射频信号滤波。
Host computer using field programmable gate array FPGA XC3S400 control the CC1100 RF transceiver chip to receive tire pressure information and accordingly respond to treatment.
上位机采用现场可编程门阵列fpgaXC3S400控制无线射频收发芯片CC 1100来实时接收胎压信息，并做相应应对处理。
The power supply provides an RF signal to electrodes of a storage device to create a trapping field.
该电源将RF信号提供给存储设备的电极，以创建俘获场。
The distributing characteristics of the electromagnetism field in the RF coaxial cable and the expression of characteristic impedance are introduced.
介绍了射频同轴电缆线中电磁场分布特点和其特性阻抗表达式。
In another embodiment, an RF electric field is generated inside a region of adipose tissue together with the ultrasound energy.
在另一实施方式中，在脂肪组织的区域内与超声能量一起产生RF电场。
A RF electric field is applied to the ions in ionization, reaction and separation region of ion mobility spectrometers.
RF电场被施加于离子迁移谱仪的电离、反应以及分离区中的离子。
Based on the data of the measurements of the stored energy ratio the formulas for calculating the rf field amplitudes are derived by means of the field method.
用场的方法并根据储能比的测量数据，导出了高频场幅值的计算公式。
In this paper, we focus on the design method of the RF coil and how to improve the homogeneity of the B1 transmit field and the quality of the image.
本文重点介绍了八通道射频发射线圈的设计方法及其如何改善B1发射场的空间不均匀性，改善图像质量的。
But besides the many potential advantages of ultra-high field MRI, there are also some methodological challenges like the destructive interference of transmit RF fields within typical volume coil.
此类超高场强MRI带来了许多可预见的优势，然而技术上的难题也随之产生，例如在一些特殊的线圈中RF发射场会产生相消性干涉现象。
Additionally, engineers use HFSS and Designer RF to conduct full-wave magnetic field intensity studies on various shielding designs.
此外，工程师运用HFSS和DesignerRF在不同的保护设计中进行全波磁场强度的研究。
Moreover, in specific RF electric field, the compensating voltages of two kinds of ions may be close to each other and it is difficult to separate and identify them.
另外，在特定的射频电压条件下，两种物质的补偿电压可能会非常接近，为两者的分离和识别造成了困难。
Moreover, in specific RF electric field, the compensating voltages of two kinds of ions may be close to each other and it is difficult to separate and identify them.
另外，在特定的射频电压条件下，两种物质的补偿电压可能会非常接近，为两者的分离和识别造成了困难。
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