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Problem with ADS automatic layout generate function

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alperuslu

alperuslu

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Hi i designed top-c coupled bandpass filter with transmission line stubs and SMT capacitors. I dont know anything about layout and for this reason i used ADS's automatic layout generate function. When i converted my design by this way and simulated with Momentum i got results that are very very bad.Instead of filter I tried with very simple matching network which includes SMT capacitor and parallel open stub i got again exreme results from Momentum.Is there any special consideration for connecting lumped elements with distributed elements in layout or how can i correct my error?I uploaded both circuits schematic and layout & simulation results.

Thanks in advance

 

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