Multilayered printed circuit board with controlled 100 ohm imped

Wave transmission lines and networks – Plural channel systems

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174 685, 333238, 361410, H01P 512

Patent

active

045609624

ABSTRACT:
A printed circuit board of six planar layers has the layers separated by a dielectric of epoxy glass. The two central layer planes form a ground plane and a voltage plane. The two external planes and the internal planes involve series of microstrip signal lines of specially calculated widths and dielectric separations to provide an essentially 100 ohm characteristic impedance for the signal lines in reference to the ground and voltage planes.

REFERENCES:
patent: 4047132 (1977-09-01), Krajewski
patent: 4434321 (1984-02-01), Betts

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