高性能频率源是现代射频、通信等电子设备的核心。随着射频、通信等电子技术的发展,小型化的问题越来越得到关注,而频率源的小型化是整个射频通信系统小型化的关键所在。文章介绍了频率源的基本理论及小型化频率源国内外的现状及其发展形势,并介绍了最新频率合成芯片的性能。 High-performance frequency source is the core of modern radio frequency, communication and other electronic equipment. With the development of electronic technology such as radio frequency and communication, the problem of miniaturization has drawn more and more attention. The miniaturization of the frequency source is the key to miniaturization of the entire radio frequency communication system. The article introduces the basic theory of frequency source and the current situation and development situation of miniaturized frequency source at home and abroad, and introduces the performance of the latest frequency synthesis chip.