Author - Mark Kolber

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Mark Kolber	Write for Microwaves & RF

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September 2009 [Components]
Gauge The Effects Of Coplanar Ground Planes
Controlling the impedance (Z) of transmission-line signal traces is an important step in designing printed-wire boards for RF and high-speed digital circuits. Proper impedance matching minimizes unwanted reflections and maintains signal integrity. There are many tools available to the PWB designer to analyze the impedance of the standard PWB geometries. Unfortunately, most of these tools do not address the use of coplanar grounds when calculating...