把传感器和RF发射器直接安装在轮胎内，采集各个轮胎当前时间的气体压力数据，经调制后再以无线射频信号发射给车厢内的数据接收模块。
The stress sensor and RF emitter was installed in car tire. It was transmited for receiver installed in car by wireless after gas stress data gathered which was processed.
基台和无线局域网络天线方面通常令人关注的一个问题涉及整个人体接触射频信号可造成的长期健康影响。
A common concern about base station and local wireless network antennas relates to the possible long-term health effects that whole-body exposure to the RF signals may have.
由于无线网络与基台相比产生的射频信号一般较低，接触这些信号预计不会产生不良健康影响。
Since wireless networks produce generally lower RF signals than base stations, no adverse health effects are expected from exposure to them.
通过在光纤中传输射频信号，研究既能利用光纤巨大带宽，又能发挥无线通信灵活方便等优势的光载无线技术得到了世界范围内的广泛关注。
Under this background, the research of radio over fiber which combines both advantages of wireless access and wired access is attracting attentions both from academia and industry all over the world.
射频功率放大器模块是无线通信收发器中的重要模块，它的作用是放大高频信号至所需的功率，并送至天线辐射出去。
PA is very important in the wireless communication system, it amplify high frequency signal to the desired power which is sent through the antenna.
射频功率放大器模块是无线通信收发器中的重要模块，它的作用是放大高频信号至所需的功率，并送至天线辐射出去。
PA is very important in the wireless communication system, it amplify high frequency signal to the desired power which is sent through the antenna.
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