Design Example - Waveguide Low pass filter
- Apr 21
- 1 min read
In this blog series I am going to make some design examples.
In this example we will look at the paper titled:
"A Compact Design of High-Power Spurious-Free
Low-Pass Waveguide Filter"
Which can be downloaded from ResearchGate: https://www.researchgate.net/publication/224176341_A_Compact_Design_of_High-Power_Spurious-Free_Low-Pass_Waveguide_Filter
The Simulation file is actually fairly compact! We need only something like 70 lines of code effectively to generate this mode!
Due to the large sweep range in the paper (10GHz to 40GHz) and high Q-factor, this simulation is really difficult to model with vectorfitting. Thus a very large frequency sweep has to be performed. To reduce the RAM usage, we will use harddisk caching to run it!
The results look really promising!
We can also make an animation. We have to set the view to isomatric (C key on the keyboard) and then look from the Y-direction to really see the field through the thick collection of geometry lines:
You can download the file to run this simulation and process it below!
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