The RF Spectrum The term Radio Freq

RF频谱<br><br>的术语射频（RF或RF）是指当交流电被输入到天线所产生的电磁场。该领域中，也被称为RF场或无线电波，可以在电磁辐射的频谱从约9千赫（kHz）到几千千兆赫（GHz）的显著部分用于无线广播和通信。这部分被称为RF频谱。当频率超过所述RF频谱增大，电磁能量需要红外（IR）的形式，可见光的紫外线（UV）的X射线和γ射线。

The RF Spectrum<br><br> The term Radio Frequency (RF or rf) refers to the electromagnetic field that is generated when an alternating current is input to an antenna. This field, also called a RF field or radio wave, can be used for wireless broadcasting and communications over a significant portion of the electromagnetic radiation spectrum—from about 9 kilohertz (kHz) to thousands of gigahertz (GHz). This portion is referred to as the RF Spectrum. As the frequency is increased beyond the RF spectrum, electromagnetic energy takes the form of infrared (IR), visible light ultraviolet (UV) X rays, and gamma rays.

射频频谱<br>术语射频（RF或RF）是指当交流电输入天线时产生的电磁场。这个场，也称为射频场或无线电波，可用于无线广播和通信的电磁辐射频谱的一个重要部分，从约9千赫（kHz）到数千千兆赫（GHz）。这部分称为射频频谱。当频率增加到射频频谱之外时，电磁能以红外线（IR）、可见光紫外线（UV）X射线和伽马射线的形式出现。