the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth, etc.

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Optimizing differential vias for high speed serde......


I have been doing some 3D simulations of differential vias usingHyperlynx.3D EM solver. I have found......

asked by joel lastest answer by bertsimonovich

6 years 6 months 1 day

0

votes

3

answers
2388 views

signal via to ground to ground via spacing more c......


Hi All,The spacing between a signal via and ground short via, or (on a four layer board) a bypass ca......

asked by doug lastest answer by buenos

6 years 6 months 2 days

0

votes

2

answers
1092 views

error messages in IBIS Model


Hello All,I am using TC1793 Infineon Microcontroller IBIS model for SI simulation.After integrating ......

asked by Nachiket.Wawoo lastest answer by lgreen22

6 years 6 months 8 days

0

votes

5

answers
2380 views

Terminating unused DQs of DDR3


Hi,This is with regard to termination of DQs of DDR3 components.Please read the text from micron..........

asked by thulasi.ramu lastest answer by weirsi

6 years 8 months 11 days

0

votes

2

answers
2226 views

Slots in power and ground planes


Looking for a good reference or explanation on how slots in power andground planes cause EMI problem......

asked by joel lastest answer by weirsi

6 years 10 months

0

votes

1

answers
1092 views

Inserion loss of fr4 , 50 ohm trace .


Hi friends ,We are designing a dual band receiver ( 2.4 Ghz & 5.5 Ghz ) on a Fr4 substrate . The len......

asked by sunil_bharadwaz lastest answer by weirsi

6 years 10 months 4 days

0

votes

28

answers
2374 views

Free Margin


I've been pondering a few past and recent discussions about particular SIdesign techniques. I know ......

asked by scott

6 years 10 months 6 days

0

votes

0

answers
1699 views

reference plane cutout under DC blocking capacito......


Hi all, I believe reference plane cutouts under the DC blocking capacitor padsfor high speed signa......

asked by bala89si lastest answer by weirsi

6 years 10 months 8 days

0

votes

13

answers
2585 views

Signals crossing power plane splits


Hi all, We might have discussed about this subject here, but, I would like to getmore perspective o......

asked by bala89si lastest answer by weirsi

6 years 10 months 12 days

0

votes

1

answers
1929 views

Co-Planar Waveguides With Ground Plane Beneath


Hello,We are simulating an RF bandpass filter using both Mentor Graphics (MG) and AWR Microwave Offi......

asked by Darren.OConnor lastest answer by weirsi

6 years 11 months

0

votes

2

answers
934 views

LVPECL termination and offset crossing


Hi all,I have some questions on the LVPECL termination techniques.DC path toground is needed to enab......

asked by balaseven lastest answer by olaney

6 years 11 months 12 days

0

votes

9

answers
1726 views

GND vs Power as reference


(I've changed the "Subject" title a bit...)I think that if I was "dead wrong", no one in the entire ......

asked by jeff.loyer lastest answer by shengli.lin.sl

6 years 11 months 25 days

0

votes

24

answers
2694 views
6 years 11 months 25 days

0

votes

0

answers
2387 views

effect of finite ground plane on strip line


Hi, I am trying to figure out the space required from the edge of the planeto the strip line trac......

asked by kbmanick lastest answer by Gert.Havermann

7 years 1 month 8 days

0

votes

1

answers
1565 views

USB grounding issue


Hi All,We have a externally facing High Speed USB port and are experiencing what looks like a ground......

asked by SSantangelo lastest answer by tianqi.lee

7 years 1 month 21 days

0

votes

2

answers
1849 views

Return current of a trace in stripline


Hi Experts, We discussed a lot regarding path of return current before and this isregarding the pat......

asked by bala89si lastest answer by weirsi

7 years 1 month 24 days

0

votes

16

answers
2094 views

Why is shield grounding necessary for Inpair Skew......


Hi, I am interested in in-pair skew. Hoping another expert could help! :) Does anyone know why groun......

asked by jsven006 lastest answer by weirsi

7 years 1 month 28 days

0

votes

3

answers
1467 views

Effect of shielding on characteristic Impedance


Hi,Can anyone explain how a nearby quiet trace can effect the trace impedance in stripline. I want t......

asked by Naresh.Dhamija lastest answer by Gert.Havermann

7 years 2 months 19 days

0

votes

1

answers
2240 views

Ethernet Chassis ground for a battery powered boa......


hi, expertshope this will not a garbage email for youi am faced with a multilayer and battery power ......

asked by emcesd lastest answer by weirsi

7 years 5 months 8 days

0

votes

1

answers
1553 views

Ground stitching vias for EMI control


Hi all, I recently came across a thumb rule in a book for Faraday shield orGround Fencing to contro......

asked by bala89si lastest answer by weirsi

7 years 5 months 21 days

0

votes

3

answers
1370 views
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