deeplearner
Newbie level 4
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Let say there are 50ohm receiving antenna, 50ohm transmission line, and common source LNA. (or in high speed wire-line link, TX's output driver having 50ohm output impedance, 50ohm transmission line, and a common source amp in RX)
If you design the LNA so that only the small input gate capacitance becomes high input impedance without input matching, there is an advantage that the input signal voltage at the gate is doubled by the total reflection, so why not use this design?
If you design the LNA so that only the small input gate capacitance becomes high input impedance without input matching, there is an advantage that the input signal voltage at the gate is doubled by the total reflection, so why not use this design?
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