Distributed amplifier: Difference between revisions

Jump to navigation Jump to search
No edit summary
No edit summary
Line 57: Line 57:
made from L-C sections.  This, in turn, is based on the notion that a transmission
made from L-C sections.  This, in turn, is based on the notion that a transmission
line can be modeled as a series of L-C sections.
line can be modeled as a series of L-C sections.
In a properly designed and constructed distributed amplifier, the input signal
passes by (and is applied to) the inputs of each of the stages, and is finally
absorbed by a terminator, which has the characteristic impedance of the input
transmission line of distributed amplifier.  In practice, there are several limits
that apply to the distributed amplifier technique.  One of these is the real component
of the input impedance of many amplifying devices.  The real component necessarily causes
energy loss in the transmission line, which limits the number of stages.