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March 1997

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Subject:
Re: Design-Microstrip
From:
[log in to unmask] (Doug McKean)
Reply To:
[log in to unmask]
Date:
Sat, 29 Mar 1997 13:48:58 -0500
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text/plain
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text/plain (34 lines) 
Ron Yanuszewski wrote:
> 
> Technetters:
> 
> IPC-D-330, para. 4.2.5.1, the formula for a microstip is:
> 
> Zo = 87•ln [5.98 H/(0.8W + T)]/(Er + 1.41)0.5 [ohms].  
> What does the [ohms] mean or contribute?

Ohms is a measure of electrical resistance. 
Higher ohms, higher resistance. 

Functionally it means that electrical energy is lost in 
the form of heat. 

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