AnsweredAssumed Answered

Simulating a Combline filter with ADS.

Question asked by lindlt on Feb 7, 2012
Latest reply on Mar 20, 2012 by GIRI

Like • Show 0 Likes0
Comment • 4

Hi,

I want to simulate a combline filter using ADS. I've calculated its physical dimensions, that is, the dimensions of the resonator bars. I would like to know how to insert these dimensions in ADS for the simulation and to produce a layout? Must I insert the dimensions when creating a substrate?

Thanks.

No one else has this question

Outcomes

4 Replies

jasong Mar 10, 2012 6:47 AM
Mark Correct
Correct Answer
Hi lindit,

Since you mentioned 'resonator bars' it sounds like you are designing a combline in a cavity. I don't know that ADS can simulate it, since ADS is a circuit simulator and uses models for mostly printed circuit media, lumped elements, etc. I would think you need a 3D electromagnetic simulator like EMpro or Ansys HFSS.
Like • Show 0 Likes0
Actions
- GIRI @ jasong on Mar 11, 2012 10:40 PM
  Mark Correct
  Correct Answer
  Try this if it is a cavity. I used via holes as the 'bars' and substrate can be air. The definition would look odd but I have used it before with fairly decent first cut approximation. For more precise estimate, obviously, you have to go for EmPro.
  
  On the other hand, if your question is not about cavity, please rephrase it.
  Like • Show 0 Likes0
  Actions
  - lindlt @ GIRI on Mar 20, 2012 10:43 PM
    Mark Correct
    Correct Answer
    Actually I'm now trying to simulate the combline filter using stripline and microstrip and using the passive design guide option. However I don't know why the stripline substrate need to be a 3 layer one (MLSUBSTRATE3) and the microstrip substrate a 2 layer one (MLSUBSTRATE2). Do you know or have an idea why it is so?
    
    Edited by: lindlt on Mar 20, 2012 11:42 PM
    Like • Show 0 Likes0
    Actions
    - GIRI @ lindlt on Mar 20, 2012 11:45 PM
      Mark Correct
      Correct Answer
      May be because there is no 2 layer stripline and 3 layer microstrip?!!
      Like • Show 0 Likes0
      Actions

Simulating a Combline filter with ADS.

Outcomes

Related Content

Recommended Content