Dear Researchers,

I have designed a SIW MMR filter using comb slot (acting as open stub). In the mode chart, the position of TZ (transmission zero) esp at upper stop band is changing with the length of stub. What can be the reason/explanation for this?? what can be the technical reason why the TZs is dependent on the stub length ?

Kindly share your wisdom

ThanksRegards

Nitin

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