3. Derive an expression for the voltage gain V2N¡ between the input and output ports of the network below. Your answer should be in terms of s-parametetrs, IL, and Is. [5] (Z0) IN OUT

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3. Derive an expression for the voltage gain V2/N¡ between the input and output ports of the network below.
Your answer should be in terms of s-parametetrs, TL, and Is.
[5]
ーゆ
Vz
(20)
S IN
OUT
4. At a signal frequency of 1 GHz, a two-port has S-0.6, S21-2, S12-0.25, and S22-0 as defined with a 50
Ohm impedance reference.
a) If the 2-port were directly connected to 50 Ohm load, and a 50 Ohm generator with 10 mW available
power, what would be the power dissipated in the load ?
b) If the load is an open circuit (infinity Ohms), then what is the input impedance ?
c) If you were to load the 2-port, without matching or stabilization clements, with a 150 Ohm load, is it
possible to seleet a generator impedance which would cause the 2-port to oscillate ?
d) If you were to load the 2-port. without stabilization clements, in 50 Ohms, and then impedance-match the
input to a 50 Ohni generator with 10mW available source power, what would be the power in the load?
Transcribed Image Text:3. Derive an expression for the voltage gain V2/N¡ between the input and output ports of the network below. Your answer should be in terms of s-parametetrs, TL, and Is. [5] ーゆ Vz (20) S IN OUT 4. At a signal frequency of 1 GHz, a two-port has S-0.6, S21-2, S12-0.25, and S22-0 as defined with a 50 Ohm impedance reference. a) If the 2-port were directly connected to 50 Ohm load, and a 50 Ohm generator with 10 mW available power, what would be the power dissipated in the load ? b) If the load is an open circuit (infinity Ohms), then what is the input impedance ? c) If you were to load the 2-port, without matching or stabilization clements, with a 150 Ohm load, is it possible to seleet a generator impedance which would cause the 2-port to oscillate ? d) If you were to load the 2-port. without stabilization clements, in 50 Ohms, and then impedance-match the input to a 50 Ohni generator with 10mW available source power, what would be the power in the load?
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