# ECE486

Microwave Engineering I: Passive Circuit Design
Fall 2015
Designation:
Elective
Catalog Data:

ECE 486 -- Microwave Engineering I: Passive Circuit Design

Description: Review of transmission line theory; microstrip lines and planar circuits; RF/microwave network analysis; scattering parameters; impedance transformer design; filter design; hybrids and resonators.

Grading: Regular grades are awarded for this course: A B C D E

Course Fee: \$47

Prerequisite(s):
ECE 381A
Textbook(s):

Pozar, David M. Microwave Engineering. 3rd Ed. Wiley. 2004.
Students will have access to secured D2L site for more course information.

Course Learning Outcomes:

By the end of this course, students will:

1. Have practice with foundational aspects of microwave engineering through homework and problem analysis. The student will develop quality and critical thinking checks necessary for extended study and mastery of selected subjects in microwave engineering well beyond the extent of the semester-long class.
2. Have 15 or more hours of hands-on experience in microwave engineering (engineering, design, analysis) EDA tools.
3. Be exposed to the historical aspects that relate to the current state of the art and future technology advances in microwave engineering.
4. Become mindful of some non-microwave engineering aspects (manufacturability, consumer demand, constraints in materials) that influence future technology advances and contributions in research and industry.

Course Topics:
1. Identify the wave equation and basic plane wave solutions.
2. Identify TEM, TE and TM waves.
3. Identify the parallel plate waveguide and its associated electromagnetic fields and current distributions.
4. Calculate the attenuation in a parallel plane waveguide.
5. Identify the rectangular waveguide, explain its operation and list the electromagnetic field distributions of its dominant modes.
6. Calculate the attenuation in a rectangular waveguide.
7. Identify the coaxial line, explain its operation and list the electromagnetic field distributions of its dominant modes.
8. Calculate the attenuation and characteristic impedance of a coaxial line.
9. Identify the stripline and explain its operation and list the electromagnetic field distributions of its dominant modes.
10. Identify the microstrip line and explain its operation and list the electromagnetic field distributions of its dominant modes.
11. Interpret the effective dielectric constant of a microstrip line.
12. Apply the effective dielectric constant, attenuation and impedance formulas for a microstrip line design.
13. Identify the different wave velocities and explain the dispersion effect.
14. Describe the lumped element circuit model for a transmission line.
15. Identify and describe the different transmission line parameters.
16. Identify the Telegrapher equations.
17. Calculate the current and voltage distribution of a terminated lossless transmission line.
18. Calculate the input impedance, reflection coefficient and standing-wave ratio of a terminated lossless transmission line.
19. Explain how the Smith Chart works.
20. Design single stub matching networks.
21. Design double stub matching networks.
22. Calculate the input impedance, reflection coefficient, voltages, current and delivered power in a transmission line with generator and/or load mismatches.
23. Explain the equivalent voltage and current concept for microwave frequencies.
24. Distinguish between the different types of impedance in a transmission lines.
25. Formulate the impedance and/or admittance matrix of an arbitrary microwave network.
26. Describe the properties of a lossless and/or reciprocal microwave network.
27. Describe the concept of the scattering matrix.
28. Apply the scattering matrix to characterize various passive microwave circuits.
29. Distinguish between regular and generalized scattering matrix.
30. Explain how the s-parameters of a 2-port microwave network can be measured.
31. Identify the transmission matrix and apply it to characterize various microwave circuits.
32. Apply the appropriate relationships to transform from one type of matrix to another.
33. Design lumped element matching networks.
34. Design quarter-wave transformers and describe their operation.
35. Describe the theory of small reflections.
36. Apply the theory of small reflections to design.
37. List the basic properties of dividers and couplers.
38. Design a Wilkinson power divider and list its properties.
39. Design a quadrature hybrid and list its properties.
40. Design coupled-line couplers and describe their operation.
41. Describe the basic operation of a vector network analyzer.
42. Describe the insertion loss method technique for designing filters.
43. Identify the different filter transformations.
44. Design a low pass filter using stubs.
45. Design a stepped impedance low-pass filter.
46. Design a coupled line bandpass filter.
47. Identify potential limitations in the circuit fabrication process.
48. Perform microwave measurements for the passive circuit of the design project.
49. Explain differences between simulated and measured data of a passive microwave circuit.
Class/Laboratory Schedule:

Two, 75-minute lectures per week

Relationship to Student Outcomes:

ECE 486 contributes directly to the following specific Electrical and Computer Engineering Student Outcomes of the ECE department:

• an ability to apply knowledge of mathematics, science and engineering (High)
• an ability to design and conduct experiments, as well as to analyze and interpret data (Medium)
• an ability to design a system, component or process to meet desired needs within realistic constraints such as economic, environmental, social, political, ethical, health and safety, manufacturability and sustainability (Low)
• an ability to function on multi-disciplinary teams (Low)
• an ability to identify, formulate, and solve engineering problems (Medium)
• an ability to communicate effectively (Medium)
• an ability to use the techniques, skills and modern engineering tools necessary for engineering practice (High)
Prepared by:
Dr. Kathleen Melde
Prepared Date:
3/16/16

University of Arizona College of Engineering