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thank you very much volker_muehlhaus
I wanna ask one more thing, since there are walls at the input and output, what should be the length of lead lines (50 ohm lines), they also affect the results.
I think my problem is due to box resonances, I made the box very large and made the top of the box free space and the response is almost OK. However, I must use a box and when I use a very narrow box, the lines are coupled to the walls and if I use a large box then cavity resonances occur. What...
Is this design for a project? if you will use this filter, you better change the substrate for the ease of manufacturing and what topology are you using for this filter?
Hi,
I am trying to design an edge coupled microstrip bandpass filter, for linear analysis I used Genesys's synthesis tools but when I put the values into Sonnet, the output is very bad. Although I care the box resonances in sonnet, there are some resonances around my pass band. Do you have any...
I am not sure how to adjust the tap position since when I used a higher value than the pormgrams suggested the result is better and also I cannot tune the screws exactly.
Does anyone know about this filter?
Hi,
I am trying to design an interdigital bandpass filter with round rods and tried two synthesis sofwares
1- An excel software in rfshop.com
2- intfil.exe
both of them are free on the internet
However, when i used the results of these sofwares in CST, the simulation results are very very...
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