摘要
低温共烧陶瓷电容元件在微波多芯片组件设计中具有重要地位,其模型是系统仿真的关键。根据电容的物理结构特点,提出了一个可重构的高频电容模型,并给出其模型参数的计算公式。最后用ADS对双层电容和四层电容等效电路模型的S参数和用三维电磁场仿真软件的仿真结果做了对比,结果表明,其双层电容等效电路模型可以准确到4 GHz,其四层电容等效电路模型可以准确到2 GHz。采用等效电路的仿真时间比三维电磁场仿真软件约快60倍。
LTCC （low temperature co-fired ceramics） capacitor is very important in the design of microwave multi-chip module （MCM） which is a crucial step for system simulation. The reconstructed high frequency capacitor model was established and the calculative formulas of this model parameters were given. The equivalent circuit model based on two-layer and four-layer capacitor S parameters in ADS was compared with the result of 3 D electromagnetic filed simulation software, which indicates that two-layer model of the equivalent circuit can be accurate to 4 GHz, and the four-layer model of the equivalent circuit is 2 GHz, the equivalent circuit simulative time is 60 times more than that of 3 D electromagnetic filed simulation software.
出处
《半导体技术》
CAS
CSCD
北大核心
2008年第1期83-85,共3页
Semiconductor Technology
基金
国家重大科技预研资助项目(51323030301)
