摘要
设计了一个应用于2.4 GHz频段的负电容电路,并对其进行了理论分析和仿真分析.与以往的负电容电路相比该电路使用一个基准电阻替代基准电流源,从而简化了电路;同时,电路中还引入了分压电阻,分压电阻的引入起到了稳定电路、降低功耗的作用.采用TSMC 0.25μm工艺,在ADS下进行仿真.通过对电路的优化,最后可以得到一个中心频率为2.45 GHz、带宽为1.2 GHz、最大容抗为2.8 kΩ的负电容电路;整个电路的功耗只有4.2 mW,预示着该电路具有很好的应用前景.
A negative capacitance circuit applied to ISM 2.4 GHz band was designed and analyzed by stimulation.A kind of criterion resistance,contrasted with the former NCC,was proposed to substitute for the criterion current source to simplify the circuit.Two series resistance have introduced to the circuit for share the margin of the voltage supply,making the circuit more stable and less power consumption.The circuit was stimulated under TSMC 0.25 μm technology with ADS.The result exhibit that is a 2.45 GHz center frequency,a 1.2 GHz bandwidth,the largest capacitance resistance of 2.8 kΩ respectively,the total power consumption is 4.2 mW.
出处
《中国计量学院学报》
2011年第3期268-272,共5页
Journal of China Jiliang University
基金
浙江省自然科学基金资助项目(No.Y1110082)
关键词
负电容电路
2.4GHz频段
带宽
功耗
negative capacitance circuit
2.4 GHz band
bandwidth
power consumption
