C-band Low Phase Noise Tuning Frequency Hopping Source Developed

This subject comes from the project:C band low phase noise tunnable jumping frequency source in Chengdu SaiYing Science and Technology Co,.Ltd.The frequency synthesis technology of PLL+Mixer is adopted in the final scheme.At first, the developing history of the frequency synthesis technology is reviewed.Then direct frequency synthesis technology,PLL frequency synthesis technology are introduced. Following, the scheme of this subject, the functional realization of each module, some questions which must be paid much attention in the system design, and the ultimate testing result of this subject are represented and analyzed in detail.