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Creating a Mitred Microstrip 45 degree bend in Cadence Allegro without using the Analog RF Option

craigswanson

Is there a skill file that will take an 8 mil trace on a 45 degree bend and create a mitered trace?  If not, how difficult would it be to write a skill file to do this?  I don't have any skill experience.

Width (W) of 8 mils and substrate thickness (h) of 4 mils.
 
When laying out microstrip transmission lines an abrupt bend of 90° can cause a significant portion of the signal on the strip to be reflected back towards its source. This results in only a portion of the signal passing through and causes un-necessary reflections in the system which degrades performance. Mitering the bend is one of the ways in which the reflections can be reduced. A 90 degree bend in a transmission line adds a small amount of capacitance to the transmission line, which causes a mismatch. A Mitered bend reduces some of that capacitance, restoring the line back to it's original characteristic impedance. This calculator below helps calculate the dimension of the mitre bend.
Thanks,
Craig
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