Linear RF- and Microwave-Circuit Simulation using Ansoft Designer SV
"Ansoft Designer SV" is a limited, but free version of the famous Designer for education purposes. It is well known since 2 years, but You do not find a lot of teaching material for it's usage. But this shall change with this tutorial, because the teaching follows a well known princicple: as many as possible projects and circuit examples will help the user or beginner to gain experience as quickly as possible.
So please do not hesitate to start, but never ignore any chapter: in this case You will miss important informations when tackling the next tasks. And if You are interested in special items: at the beginning of every project You can find the intended "teaching goals". So have fun with modern microwave CAD!
Here you can download the tutorial as pdf file
Caution: since June 2010 the software is no longer available from the Internet or the Ansoft homepage. If you
anyway want to work with: Here you can download the necessary DesignerSV050610.exe file (caution: 113MB..)
Page 4 / Project 1
Design of a 100 MHz Chebyshev Lowpass Filter (series inductor and parallel capacitor version)
opening of a and working with a project.
Successfully working with the Filter Designer Tool.
Page 7 / Project 2
Impedance Matching using a Lambda / 4 -Microstrip-Line (on a FR4-
a) Working with Circuit Design Projects
b) Usage of Microstrip Lines, Microwave Ports and lumped
c) Correct Working with the Microstrip Calculator
d) Preparation and Execution of Simulations
e) Showing the results in the Smithchart or as a Rectangular Plot
f) Using Data Markers in the result plot
Page 17 / Project 3:
Impedance Matching using a Lambda / 4 -Microstrip-Line (with a
not in the proposal window listed substrate)
Using any substrate for the board
Page 21/Project 4:
Impedance Matching using a Lambda / 4 - Line (= Grounded Coplanar
Usage of other Line Types and other substrates
Page 24/Project 5:
Travelling around sharp corners and afterwards turning in the
a) Using "Bends"
b) 2D- and 3D-Layouts
Page 28/Project 6:
Working with S-Parameter-Files (of the GaAs-FET ATF34143)
a) Working with N-ports
b) Simulating with S-Parameter-Files
c) First Meeting with the Noise Figure "NF" and the Stability Factor
Page 32/Project 7:
Improving the Stability of the ATF34143-Amplifier (from Project 6)
a) Using N-Ports with reference points
b) More stability for Transistor Amplifiers
Page 35/Project 8:
Creating and saving the S-Parameter-File for a selfmade circuit
Page 37/Project 9:
Analyzing a 1 GHz - Microstrip-LPF
Microstrip Lines and Steps in combinations
Page 43 /Project 10:
Optimizing the LPF of Project 9
a) Using Local Variables
b) Working with the "Accumulate"- Function
Page 50 / Project 11:
Complete Design of a 1575 MHz - Microstrip edge coupled
a) Design of such a filter type with the integrated Filter Designer
b) Successfully using coupled lines
Page 57 / Project 12:
Optimizing the 1575 MHz - BPF (Project 11) using the
Network - Analyzer Measurements of the manufactured Prototype
Here You find all documents (data sheets, application notes, S-Parameter-Files) for the GaAs-FET "ATF34143", used in the projects.
And Here You can download the Ansoft Software from my homepage.
If You are searching for a missing or special part's S-Parameter-File, click here and have a look at my "S-Parameter-CD" with thousands of collected files...
Have fun, and if there are any questions or problems or circuits to be designed, do not hesitate to send me a mail.
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