ECE 391 - Final Project - Spring 2022
By signing below, I certify that I understand that all acts of cheating or other misconduct on this
final project will be subject to disciplinary action.
Last Name, Last 6 of ID:
This section to be filled in by grading TA’s only.
Shunt Stub Match Score: /25
Series Lumped Match Score: /25
Quarter Lambda score: /15
Total Score: /65
�r = 2.3
Z0 = 50Ω
ZL and frequency of operation is determined by the last six digits of your OSU student
ID in the following manner:
Your load ZL:
Frequency of operation is:
1. Develop a shunt stub match at the closest position to the load for your particular ZL and frequency
such that the impedance looking into T1 is 50Ω. Create solutions with both open and short-circuited
stubs. Create and run a spice simulation showing proper operation.
(a) [5] Distance from load to match point ”B”(in lambda and meters)
(b) [5] Length of short-circuit matching section (in lambda and meters)
(c) [5] Length of open-circuit matching section (in lambda and meters)
(d) [10] Run an ngspice simulation showing co
ect operation for each case. Include the plot of Zin
and the netlist you used.
2. Develop a series match solution using a lumped element (L or C) at the two closest positions to the
load for your particular ZL and frequency such that the impedance looking into T1 is 50Ω. Create
and run a spice simulation showing proper operation.
(a) [5] Distance from load to match point (in lambda and meters)
(b) [5] The element and its value for making the match in the closest position
(c) [5] The element and its value for making the match in the next closest position
(d) [10] Run an ngspice simulation for each case showing co
ect operation. Include the plot of Zin
and the netlist you used.
3. Develop a quarter-wave match solution at the closest position to the load for your particular ZL and
frequency such that the impedance looking into T1 is 50Ω.
(a) [5] Distance from load to the matching section (in lambda and meters)
(b) [5] The length and Z0 value for Zm for the quarter-wave matching section.
(c) [5] Run an ngspice simulation showing co
ect operation. Include the plot of Zin and the netlist
you used.