Module 2D: Learning Materials -- RF Filter Stepped Impedance Design
To-Do Date: Feb 4 at 11:59pm- Module 2 (Weeks 2,3): Overview & Instructions
- Module 2A: Learning Materials -- LP RF Filter Design Lumped Elements
- Module 2: Assignment 2a Lumped Element LP Filter Design (20 pts)
- Module 2: Tutorial -- RF Filters (20 points), Discussion
- Module 2b: Learning Materials -- HP, BP, BS RF Filter Design
- Module 2: Assignment 2b Converting LP Filter Design to HP, BP, BS (20 pts)
- Module 2C: Learning Materials -- RF Filter Design Stub Design
- Module 2: Assignment 2c Converting Lumped Element Designs to Stub Filter (20 pts)
- Module 2D: Learning Materials -- RF Filter Stepped Impedance Design
- Module 2: Assignment 2d Converting Lumped Element Designs to Stepped Impedance Filter (20 pts)
- Module 2 -- Filters: Muddiest Point Discussion (10 pts)
- Module 2: Class Feedback (10 pts) , Assignment
- Extra Credit: Attend a Career Event (20 points), Assignment
Introduction
In this module, we will be learning about RF filters and how to design them using the Insertion Loss method.
2A: We will begin with the basics of lumped element filters, which are applicable at lower frequencies as well as RF frequencies. We will review low pass, high pass, band pass, and band stop filters, and how to implement low pass filters with maximally flat (Butterworth), equal ripple (Chebyshev), and Elliptic designs.
2B: We will then learn how to convert the LP designs to HP, BP, BS designs, still with lumped elements.
2C: Next, we will learn how to convert the lumped element designs to distributed designs using stubs and 2D: stepped impedances. Finally, we have information on practical implementation issues.
Learning Materials
Readings
- Microwave Engineering by David M. Pozar -- Chapter 8.6 Download Chapter 8.6
- Planar Microwave Engineering by Thomas Lee (textbook, see Canvas online Bookshelf) -- Parts of Chapter 23
- RF Circuit Design by Chris Bowick -- Chapter 3 (has detailed tables for Butterworth and Chebyshev filters)
Material/Lecture content
Supporting Material
Review: What are S-parameters?
Review: What are ABCD Parameters?
Review: Review: What are Z-Parameters?
Review: Converting between ABCD, S, Z parameters
Review: dB
Review: Finding Microstrip width and wavelength
Filter Design Calculators (check your work with these)
Dr. Furse's Filter Design Cookbook
Class LIVE VIDEO Meetings
We'll meet Tuesday and Thursday 1230-145. Use the Zoom link to the left. If you can't find the link under upcoming meetings, it will be under Previous meetings. Use the same zoom link for every class and office hours.
Notes for Today: Stepped Impedance Filters.pdf Download Stepped Impedance Filters.pdf
PPT to take notes on:2D Stepped Impedance Filterss.pdf Download 2D Stepped Impedance Filterss.pdf
Useful handout to print out 2D Handout for Class.docx Download 2D Handout for Class.docx
eActivities
You can access the activities by clicking "next" below or through the navigation links at the top of the page.
This module is 2 weeks long. Earn 100 total points for this module from some combination of the following:
- Module 2: Assignment 2d Converting Lumped Element Designs to Stepped Impedance Filter (20 pts)
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Module 2: Tutorial -- RF Filters (20 points, plus 10 points extra credit)
- Note: You may do up to three tutorials, provided they are significantly different. (For instance, designing with Butterworth and then with Chebyshev is too similar, but designing with Butterworth, and then converting from LP to HP, is significantly different.) You can get credit for multiple tutorials simply by adding additional posts to this discussion board.
- Module 2 -- Filters: Muddiest Point Discussion (10 pts)
- Module 2: Class Feedback (10 pts)