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characteristic impedance calculator (Read 3857 times)
vp1953
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characteristic impedance calculator
Apr 05th, 2011, 5:00pm  
Hi

I am wondering if there are any calculators out there that will provide the width for a 50 ohm transmission line, for different FR4 board thicknesses.

Thank you in advance.
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apprentice
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Re: characteristic impedance calculator
Reply #1 - Apr 5th, 2011, 8:00pm  

AWR microwave office - txline
Agilent ADS - line cal
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vp1953
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Re: characteristic impedance calculator
Reply #2 - Apr 6th, 2011, 9:50am  
Hi Apprentice,

Thanks very much!
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loose-electron
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Re: characteristic impedance calculator
Reply #3 - Apr 8th, 2011, 2:06pm  
There are online calculators on some PCB sites for this

Go do some searching, its out there
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rfcooltools.com
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Re: characteristic impedance calculator
Reply #4 - Apr 18th, 2011, 5:50pm  
vp1953,

You can use the rfcooltools for this by placing a series t-line component between two ports and playing around with the Height , Er and Width.  It is pretty basic.  I have not implemented loss tangent yet but that effect is usually a second order effect for most applications.

http://rfcooltools.com
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