TABLE OF CONTENTS For this section, we assume that networks are linear and time invariant. Time invariant signifies that the network is constant with time. Linear signifies the output is a linear function of the input. Doubling the input driving function doubles the resultant output. The network may be uniquely defined by a set of linear equations relating port voltages and currents.
Consider the network in Figure 1-1A terminated at the generator with R g, terminated at the load with R l, and driven from a voltage source E g [1]. E l is the voltage across the load.
The quantity E avail is the voltage across the load when all of the available power from the generator is transferred to the load.
| (1.1) |  |
For the case of a null network with R l = Rg,
| (1.2) |  |
since one-half of E g is dropped across R g and one-half is dropped across R l. For the case of a non-null network, dividing both sides of the equation 1.1 by E l gives
| (1.3) |  |
We can then define the voltage transmission coefficient as the voltage across the load, E l, divided by the maximum available voltage across the load E avail, or
| (1.4) |  |
This voltage transmission coefficient is the "voltage gain" ratio. For the...
