.60 Ghz Millimeter-wave Phase-locked Source

As the most crucial techniques that apply in electronic systems, a high performance frequency synthesizer is absolutely necessary that ensure modern electronic systems such as radar and communication systems to achieve high performance.Designing a high performance frequency synthesizer is very important research field. In this paper, a PLL frequency synthesizer working at U band is researched. Dual-PLL harmonic mix and intermediate frequency detected are used to achieve the goal. Firstly, we review the basic principle of phase locked loop and it's composing parts. After that the basic conception and design method of PLL frequency synthesizer is introduced, especially introduce the charge pump PLL frequency synthesizer in detail. We present the designing result of passive loop filter . We also introduce the debugging method of millimeter wave VCO working at U band. After that the EDA design result and the real test result of harmonic mixer are provided. At the same time the real test result of millimeter wave VCO working at U band is also given. Finally we introduce the method of using ADF4113 and provide the real test result of phase-locked source working at 60GHz. The results show that the output power is 3mW at 60GHz, with phase noise -70.4dBc/Hz at 10kHz offset.