Question

A section of transmission line of 50 ohm characteristic impedance and 3x10^8 m/s propagation velocity carries simultaneously 300 MHz and 150 MHz signals. The line is terminated in a parallel connection of two sections of the same line, both sections terminated in 50 ohm resistance designated A and B. A 50 cm long open-circuited section is connected 50 cm from the connection to the driving line across the line terminated in resistance A. A 50 cm long short-circuited section (of the same line) is connected 25 cm from the junction with the driving line across line terminated in resistance B.

Which of the A and B resistances will receive the 300 MHz and 150 MHz signals? Note: All lines and line sections in this problem at 50 ohm, 3x10^8 m/s lines.

Answer 1