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msmulski
Joined: 11 Dec 2007
Posts: 2
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 31 Jan 2008 3:00 pcb footprint microwave filter |
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I have created a pcb symbol in Allegro that has two pins and looks like a short at DC. I basically connected pin1 to pin2 with a piece of copper. At DC this looks like a short but at microwave frequency this is filter. When I load this into Allegro, it complains that I shorted two nets. Is there a workaround for this issue? This must be a common problem for microwave designs (filters, antennas, resonators etc).
Thanks for you help,
Michal
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majnoon
Joined: 11 Dec 2002
Posts: 272
Helped: 27
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31 Jan 2008 15:10 Re: Microwave filter footprint in Allegro |
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Which version of Allegro is???
There are few ways to do this,
If your two pins connection do not make a exotic looking pad then creat just one pin for this part the same shape as it is connected. Another one is keep your current way and in schematic connect two pins together.
Regards,
M
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taymoor2000
Joined: 05 Jun 2006
Posts: 42
Helped: 3
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03 Feb 2008 7:46 Re: Microwave filter footprint in Allegro |
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| You can assign one pin as connect pin and the other pin as mechanical pin,and connect the two pins
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03 Feb 2008 7:46 Ads |
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Schallhofer
Joined: 10 Jul 2007
Posts: 28
Helped: 1
Location: Itzehoe
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04 Feb 2008 9:41 Microwave filter footprint in Allegro |
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Net_Short Property on Pin; Signal1:Signal2
Design your Pins a little longer as the "line to line" property is,
no hug, bubble to shove and fire.
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