Abstract
In the millimeter wave wireless communication system, frequency source is an indispensable device in the communication equipment. It is designed to provide a local oscillator signal for the receiving and transmitting system. Its tuning range, phase noise and frequency stability are very important to the quality of the whole communication link. For this purpose, this paper studies the low power millimeter wave voltage controlled oscillator based on CMOS technology, and designs a Q band voltage controlled oscillator used for Q- LINKPAN standard. Firstly, this paper designs the voltage controlled oscillator (VCO) circuit structure, the voltage controlled oscillator circuit, cross coupled pair, on-chip inductor and variable capacitance tube, and studies the connection layout method to reduce the layout parasitic, summarizes the method of imitation of the VCO after using the electromagnetic simulation software HFSS, accumulates certain design experience for the circuit design, layout design and post simulation of millimeter wave VCO, and gives the simulation results for Q band voltage controlled oscillator used for Q-LINKPAN standard. The simulation results show that the designed voltage controlled oscillator has low power consumption and high performance, showing the correctness of the design.
