Thread: Combline filter design with ADS.


Permlink Replies: 1 - Pages: 1 - Last Post: Apr 9, 2012 6:45 PM Last Post By: eyeung
lindlt

Posts: 3
Registered: 02/06/12
Combline filter design with ADS.
Posted: Mar 20, 2012 11:40 PM
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Hi

I'm designing a combline filter in ADS using stripline and microstrip. Can someone please tell me why stripline need a 3 layer substrate (MLSUBSTRATE3) and microstrip a 2 layer substrate (MLSUBSTRATE2)?

Thanks

eyeung

Posts: 50
Registered: 01/22/09
Re: Combline filter design with ADS.
Posted: Apr 9, 2012 6:45 PM   in response to: lindlt in response to: lindlt
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Stripline Comb-line filter from the ADS passive circuit design guide is based on the multi-layer transmission line library. Stripline by definition has top and bottom ground planes, adding the signal layer in the middle so there are three metal layers in total. That is why stripline comb-line filter needs the 3 metal layer substrate of MLSUBSTRATE3.

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