RF基础与测量RF的用途,主要是迅速而准确地传输信息,以 克服距离上的障碍,是无线通信的关键技术,是 传输信息的载体
上传时间： 2016-11-21
上传用户：yfangwei
初级入门学习zigbee的极佳教材，需要配套相关的硬件设施。
上传时间： 2016-12-04
上传用户：coollibei
zigbee协议栈介绍以及使用方法 对于zigbee介绍很详细
上传时间： 2017-03-12
上传用户：biubran
zigbee广播协议栈，详细介绍了如何组网和组网的代码
上传时间： 2017-05-21
上传用户：李大大123
cc2530中文数据手册，zigbee无线传输
上传时间： 2017-08-24
上传用户：zhangyuyu1234
这个是一个RF发射 的很经典的一款芯片。超低功耗。
上传时间： 2018-04-09
上传用户：376115111
基于ZIGBEE无线传输协议的微型烟雾报警系统
上传时间： 2018-10-05
上传用户：cc2019
Radio frequency (RF) power amplifiers are used in everyday life for many applica- tions including cellular phones, magnetic resonance imaging, semiconductor wafer processing for chip manufacturing, etc. Therefore, the design and performance of RF amplifiers carry great importance for the proper functionality of these devices. Furthermore, several industrial and military applications require low-profile yet high-powered and efficient power amplifiers.
标签： Introduction Amplifier Design Power to RF
上传时间： 2020-05-27
上传用户：shancjb
With the rapid expansion of wireless consumer products,there has been a con- siderable increase in the need for radio-frequency (RF) planning, link plan- ning, and propagation modeling.A network designer with no RF background may find himself/herself designing a wireless network. A wide array of RF planning software packages can provide some support, but there is no substi- tute for a fundamental understanding of the propagation process and the lim- itations of the models employed. Blind use of computer-aided design (CAD) programs with no understanding of the physical fundamentals underlying the process can be a recipe for disaster. Having witnessed the results of this approach, I hope to spare others this frustration.
标签： Introduction Propagation to RF
上传时间： 2020-05-27
上传用户：shancjb
The unguided transmission of information using electromagnetic waves at radio frequency (RF) is often referred to as wireless communications, the first demonstration of which took place at the end of the 19th cen- tury and is attributed to Hertz. The technology was, shortly thereafter, commercialised by, amongst others, Marconi in one of the first wire- less communication systems, i.e., wireless telegraphy. In the first half of the 20th century the technology was developed further to enable more than the mere transmission of Morse code. This first resulted in uni- directional radio broadcasting and several years later also in television broadcasting.
标签： Imperfections RF
上传时间： 2020-06-01
上传用户：shancjb
