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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. |