Trade-offs in Specific CMOS RF Communication Circuits

The design trade-off in the front-end of the transceiver,such as LNA,mixer,local oscillator and PA,is concerned. The advantages and limitations of the circuit topologies and key parameters of the state-of-the-art CMOS transceiver building blocks are discussed in order to gain more insight about a specific block design. A normalized formula of the figures of merit for each building block is also proposed to evaluate the overall performance of various circuits for fair comparison.     

模拟集成电路设计中虚零点补偿方法的探讨

作为对极点分裂和极点零点对消等频率补偿方法的补充,本文从系统极零点的角度介绍了一种通过在反馈网络中引入虚零点来实现负反馈放大器频率补偿的方法;对虚零点补偿原理、实现虚零点的方法以及与不同反馈网络相对应的实现虚零点的器件类型等进行了探讨;并基于EDA仿真软件,验证了用虚零点实现频率补偿的有效性。