microstrip discontinuity

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okik

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How can I compensate T-junction discontinuity? I need advice on how to do it easily and especially correctly. Because my designed filter not working properly due to T-junction discontinuity.
Thanks for any advice
 

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okik said:
View attachment 189353

View attachment 189354
for calculation to microstrip form --> substrate - Er=2.33 and h=1.27 mm, Zhigh=155.9, Zlow=40.73, cutoff freq=694MHz
Click to expand...


I wonder about your Schema. Which do you use design program for this schema? I saw the CST result. But your schema offers every notch branch's frequency. Is there a filter design program that shows this automatically?
 

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Yigit Yalcinkaya said:
I wonder about your Schema. Which do you use design program for this schema? I saw the CST result. But your schema offers every notch branch's frequency. Is there a filter design program that shows this automatically?
Click to expand...
Designed scheme is from software Nuhertz Filter Solutions
 
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