Apparatus and method for semi-circular routing for transmission line signals

Patent metadata

Field	Value
Publication number	US-9742464-B2
Application number	US-201514802434-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Jul 17, 2015
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

An information handling system includes a stripline transmission line, the stripline transmission line including a plurality of conductors, each one of the conductors having a mitigation conductor section and a non-mitigation conductor section. The mitigation conductor section includes a first linear section having a first side surface and a second side surface, and a plurality of substantially semi-circular stubs extending from the first side surface of the first liner section. The mitigation conductor section is configured to mitigate near end cross talk between the mitigation conductor section and adjacent conductors.

First claim

What is claimed is:

1. An information handling system, comprising:
a first device;
a second device; and
a stripline transmission line coupled to the first device and to the second device, the stripline transmission line comprising:
a plurality of conductors, each one of the conductors having a mitigation conductor section and a non-mitigation conductor section, the mitigation conductor section including:
a first linear section having a first side surface and a second side surface; and
a first plurality of semi-circular stubs extending from the first side surface of the first liner section,
wherein the conductors are single ended conductors for single ended signaling;

wherein the mitigation conductor section is configured to mitigate near end cross talk between the mitigation conductor section and adjacent conductors.

2. The information handling system of claim 1 , wherein the mitigation conductor section is further configured to match the impendance of the mitigation conductor section and the non-mitigation conductor section.

3. The information handling system of claim 1 , wherein the first device is a double data rate memory device and the second device is a memory controller.

4. The information handling system of claim 3 , further including a processor coupled to the memory controller.

5. The information handling system of claim 1 , the stripline transmission line further comprising:
a second plurality of conductors, each one of the second conductors having a second mitigation conductor section and a second non-mitigation conductor section, the second mitigation conductor section including:
a second linear section having a third side surface and a fourth side surface; and
a second plurality of semi-circular stubs extending from the third side surface of the second liner section,

wherein the second conductors are differential conductors for differential signaling.

6. The information handling system of claim 1 , further comprising a printed circuit board coupled to the first device and to the second device, wherein the mitigation conductor section is within a trace region of the printed circuit board that requires mitigation.

7. The information handling system of claim 1 , further comprising a printed circuit board coupled to the first device and to the second device, the printed circuit board comprising the stripline transmission line.

8. The information handling system of claim 1 , wherein the mitigation conductor section further comprises a second plurality of semi-circular stubs extending from the second side surface of the first liner section, wherein the second plurality of semi-circular stubs is configured to further mitigate near end cross talk between the mitigation conductor section and the adjacent conductors.

9. A transmission line comprising:
a plurality of conductors, each one of the conductors having a mitigation conductor section and a non-mitigation conductor section, the mitigation conductor section including:
a first linear section having a first side surface and a second side surface; and
a first plurality of semi-circular stubs extending from the first side surface of the first liner section,
wherein the conductors are single ended conductors for single ended signaling;
wherein the mitigation conductor section is configured to mitigate near end cross talk between the mitigation conductor section and adjacent conductors.

10. The transmission line of claim 9 , wherein the transmission line is a stripline transmission line.

11. The transmission line of claim 9 , wherein the transmission line is an embedded microstrip transmission line.

12. The transmission line of claim 9 , wherein the transmission line is a microstrip transmission line.

13. The transmission line of claim 9 , wherein the mitigation conductor section is further configured to match impedance of the mitigation conductor section and the non-mitigation conductor section.

14. The transmission line of claim 9 , wherein the mitigation conductor section further comprises a second plurality of semi-circular stubs extending from the second side surface of the first liner section, wherein the second plurality of semi-circular stubs is configured to further mitigate near end cross talk between the mitigation conductor section and the adjacent conductors.

15. The transmission line of claim 9 , further comprising:
a second plurality of conductors, each one of the second conductors having a second mitigation conductor section and a second non-mitigation conductor section, the second mitigation conductor section including:
a second linear section having a third side surface and a fourth side surface; and

a second plurality of semi-circular stubs extending from the third side surface of the second liner section, wherein the second conductors are differential conductors for differential signaling.

16. A stripline transmission line comprising:
a plurality of conductors, each one of the conductors having a mitigation conductor section and a non-mitigation conductor section, the mitigation conductor section including:
a first linear section having a first side surface and a second side surface; and
a first plurality of semi-circular stubs extending from the first side surface of the first liner section,
wherein conductors are single ended conductors for single ended signaling;

wherein the mitigation conductor section is configured to mitigate near end cross talk between the mitigation conductor section and adjacent conductors.

17. The stripline transmission line of claim 16 , wherein the mitigation conductor section is further configured to match the impedance of the mitigation conductor section and the non-mitigation conductor section.

18. The stripline transmission line of claim 15 , further comprising:
a second plurality of conductors, each one of the second conductors having a second mitigation conductor section and a second non-mitigation conductor section, the second mitigation conductor section including:
a second linear section having a third side surface and a fourth side surface; and
a second plurality of semi-circular stubs extending from the third side surface of the second liner section, wherein the second conductors are differential conductors for differential signaling.

19. The stripline transmission line of claim 16 , wherein the mitigation conductor section is within a trace region of a printed circuit board that requires mitigation.

20. The stripline transmission line of claim 16 , wherein the mitigation conductor section further comprises a second plurality of semi-circular stubs extending from the second side surface of the first liner section, wherein the second plurality of semi-circular stubs is configured to further mitigate near end cross talk between the mitigation conductor section and the adjacent conductors.

Assignees

• Dell Products Lp

Inventors

• Mutnury Bhyrav M
• Vasa Mallikarjun

Classifications

• H01P3/081

  Microstriplines · CPC title

• H04B3/32 Primary

  Reducing cross-talk, e.g. by compensating · CPC title

• H01P3/08

  Microstrips; Strip lines · CPC title