The other problem is how to make active LC filters automatically tunable. Tuning an active LC filter in the GHz range automatically is a design challenge. While they are relatively insensitive to analog component accuracy, there are very important situations where their design goals cannot be achieved without additional calibration or correction procedures. The proposed techniques will be illustrated with practical and numerical examples. Mixed-Signal Analog integrated circuits for portable wireless applications are constantly increasing in complexity.
Handset manufacturers hope to reduce battery cell usage in order to reduce weight, cost and size.
Lower supply voltage requirement becomes a major driver for creative analog designers. Besides reduced voltage supply, power consumption is the other paradigm. We will present a new technique to directly generate equivalent-circuit models from device simulation. All the circuit elements have a clear physical interpretation. Applications to one-dimensional pn junctions and bipolar transistors will be presented.