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converting CPWG/ CPW (coplanar waveguide in ADS) to gerber

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sanketpatel2020

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Hi! Greetings!

I am used to generate mictrostrip to layout and then export to gerber in ADS.
However, I am first time dealing with CPWG lines. I can see CPWG converted in the layout with center conductor (line width W) and thin ground lines at distance (Gap=G) apart.
I can see the same once I export the layout to gerber.

However my doubt is why the outer ground lines are so thin and not the typical PCB layout lines where we have center conductor and a gap, and a ground everywhere else (the way it should look like as shown in the attached image "Expected").?

Please guide me in this regard.

what_I_am_getting:



Expected like this:
 

sanketpatel2020 said:
I can see CPWG converted in the layout with center conductor (line width W) and thin ground lines at distance (Gap=G) apart.
Click to expand...

Not sure which ADS element you have used. The thin line might be there to indicate the gap width, and the electrical model assumes a wide, large ground. My interpretation is that you must add the ground manually, outside that gap indicated by the thin line.

sanketpatel2020 said:
why the outer ground lines are so thin and not the typical PCB layout lines where we have center conductor and a gap, and a ground everywhere else
Click to expand...

ADS does not know how wide you want the ground polygons - there can be other objects and the ground polygon must not overlap them.
 

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