ABSTRACT
In this chapter, the authors look at some of the problems related to distributed effects, specifically delay and signal misalignment. They examine coupling, looking at problems such as noise and change of performance. Applications of coupling have been shown, which include multiturn, multilayer transformers and injection-locked oscillators. Coupling can result in noise and change of performance. Coupling between digital and analog sections on the same integrated circuit can occur due to switching noise being injected into the common substrate, or on to power supply lines. Modern integrated radio frequency circuits can include a large number of inductors, so coupling between them may be significant. This can apply to wireless circuits as well as wireline circuits where inductors could be used in clock and data recovery circuits, laser modulator/driver, or to provide peaking, for example, in limiting amplifiers.
