2~4GHz宽带压控振荡器的研制

Design of 2～4GHz Broadband Voltage Controlled Oscillator

对振荡器的基本理论进行分析,针对宽带电路的特点提出宽带振荡电路的设计思路,并应用Ansoft Designer仿真设计一个2~4GHz宽带压控振荡器。该振荡器在常温工作状态下测得的相位噪声为-85dBc/Hz@10kHz,输出信号功率平坦度好,负载牵引小。

This paper analyzes the basic principle of oscillators and gives a new design method of the broadband oscillators.A broadband oscillator covering 2～4GHz is designed by Ansoft Designer.On the working condition of normal temperature,the oscillator is tested.The results show that the oscillator has low phase noise of-85dBc/Hz@10kHz,good power flatness and small load pull.