Printed circuit boards for countering signal distortion
View Patent ↗Printed circuit boards for countering signal distortion are disclosed that include: a conductive pathway on a printed circuit board between a transmitter and a receiver, the conductive pathway comprised of traces and vias connected together for conductive transfer of a signal from the transmitter to the receiver; a parasitic element on the printed circuit board, the parasitic element having a parasitic effect that distorts the signal; and one or more passive elements mounted adjacent to the conductive pathway without connecting to the conductive pathway, the passive elements having a corrective effect to reduce the distortion from the parasitic effect on the signal.
1. A printed circuit board for countering signal distortion, the printed circuit board comprising:
a conductive pathway on a printed circuit board between a transmitter and a receiver, the conductive pathway comprised of traces and vias connected together for conductive transfer of a signal from the transmitter to the receiver;
a parasitic element on the printed circuit board, the parasitic element having a parasitic effect that distorts the signal; and
one or more passive elements mounted adjacent to the conductive pathway without connecting to the conductive pathway, the passive elements having a corrective effect to reduce the distortion from the parasitic effect on the signal.
2. The printed circuit board of claim 1 wherein:
the parasitic effect is a parasitic capacitance; and
the corrective effect is a corrective inductance.
3. The printed circuit board of claim 1 wherein:
the parasitic effect is a parasitic inductance; and
the corrective effect is a corrective capacitance.
4. The printed circuit board of claim 1 wherein one of the passive elements comprises a trace.
5. The printed circuit board of claim 1 wherein one of the passive elements comprises a microstrip.
6. The printed circuit board of claim 1 wherein one of the passive elements comprises a trace in series with an inductor.
7. The printed circuit board of claim 1 wherein one of the passive elements comprises a trace in series with a capacitor.
8. The printed circuit board of claim 1 wherein one of the passive elements is mounted adjacent to the conductive pathway between the transmitter and the parasitic element.
9. The printed circuit board of claim 1 wherein one of the passive elements is mounted adjacent to the conductive pathway between the receiver and the parasitic element.
10. The printed circuit board of claim 1 wherein each passive element provides a portion of the corrective effect to reduce the distortion of the parasitic effect on the signal.
11. A method of countering signal distortion on a printed circuit board, the method comprising:
transmitting a signal, by a transmitter to a receiver, along a conductive pathway on a printed circuit board, the conductive pathway comprised of traces and vias connected together for conductive transfer of the signal from the transmitter to the receiver;
distorting, by a parasitic element on the printed circuit board, the signal through a parasitic effect; and
reducing, by a passive element mounted adjacent to the conductive pathway without connecting to the conductive pathway, the distortion of the signal through a corrective effect.
12. The method of claim 11 wherein:
the parasitic effect is a parasitic capacitance; and
the corrective effect is a corrective inductance.
13. The method of claim 11 wherein:
the parasitic effect is a parasitic inductance; and
the corrective effect is a corrective capacitance.
14. The method of claim 11 wherein one of the passive elements comprises a trace.
15. The method of claim 11 wherein one of the passive elements comprises a trace in series with a capacitor.
16. A method of countering signal distortion on a printed circuit board, the method comprising:
providing a conductive pathway on a printed circuit board between a transmitter and a receiver, the conductive pathway comprised of traces and vias connected together for conductive transfer of a signal from the transmitter to the receiver;
providing a parasitic element on the printed circuit board, the parasitic element having a parasitic effect that distorts the signal; and
reducing, by a passive element mounted adjacent to the conductive pathway without connecting to the conductive pathway, the distortion of the signal through a corrective inductance.
17. The method of claim 16 wherein:
the parasitic effect is a parasitic capacitance; and
the corrective effect is a corrective inductance.
18. The method of claim 16 wherein:
the parasitic effect is a parasitic inductance; and
the corrective effect is a corrective capacitance.
19. The method of claim 16 wherein one of the passive elements comprises a trace.
20. The method of claim 16 wherein one of the passive elements comprises a trace in series with a capacitor.