应用于5GHz 0.18μm CMOS差分低噪声放大器的差分平面螺旋电感设计  

A Differentially-Driven Planar Spiral Inductor Design for 5GHz 0.18μm CMOS Differential LNA

作　　者：王占仓[1] 方穗明[1] 高风[1] 王占伟[1] 

机构地区：[1]北京工业大学嵌入式重点实验室,北京100022

出　　处：《微波学报》2007年第B08期107-111,共5页Journal of Microwaves

摘　　要：针对射频应用的5GHz 0.18μm CMOS差分低噪声放大器,本文提出了一种差分平面螺旋电感的设计方法。通过对提出的电感模型进行参数计算和分析,可以实现差分电感的高准确度物理设计。与此同时,本文还提出几种对于该设计的优化方法:Q值迭代优化、耦合系数近似等。最后,通过Momentum工具进行物理建模和电磁场仿真。测试结果表明应用该设计的低噪声放大器的性能符合指标要求。A differentially-driven spiral inductor design for a 5GHz 0.18μm CMOS differential LNA application is provided in this paper. Through a hand-calculated parameter analysis based on a lumped-element model, the physical design of inductor is achieved with high accuracy. Also, several optimization methods such as beta iteration, Q value iteration, and coupling coefficient approximation are proposed. Finally, by means of Momentum tool, physical modeling and EM simulation are implemented to verify this design. A LNA with this design is verified to obtain satisfactory performance.

关 键 词：差分螺旋电感 CMOS Q值 耦合系数 差分低噪声放大器 

分 类 号：TN722.3[电子电信—电路与系统]