> > Capacitance of a parallel plate capacitor (or parallel copper planes)
> > is given as:
> >
> >       C = Eo x Er x A
> >           -----------
> >                D
> >
> > Where:
> >        C  = capacitance in Farads      (F)
> >        Eo = permittivity of free space (8.854 x 10exp-12) (F/m)
> >        Er = relative permittivity  (typically FR-4 is 4.6 at 1 MHz)
> (no units)
> >        A  = area of the plates (or planes) (m x m)
> >        D  = distance between plates (or planes) (m)
> >
> > This equation neglects fringing effects.
> ------------------------------------------------------------------------------------------------------------
>
> Also assume that:
>
> D << length (for "A" dimension)
>
> D << width (for "A" dimension)
>
> Er >> Eo
>
>
> From "Transmission Line Design Handbook"
> by Brian C. Wadell
> A book all designers of RF and high speed circuits should invest in.
> It includes formulas for all types of printed devices.
> spiral inductors, capacitors, resistors, T junction, Y junction,
> microwave bends etc.
>
> Raymond Smith
> Sr. PCB Designer
> Tellium
> Oceanport, N.J. 07757
> [log in to unmask]
>


Hey
Do you have an ISBN number for the for mentioned book??? Please?

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