a decrease in signal in a communications system

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Common mode and differential mode return loss usi......


Hi All,My spice simulator does not support s-parameter port simulation.So, I am using equations to f......

asked by rohitprodigy

4 years 7 months 21 days

0

votes

0

answers
2003 views

DSR-3241 soldermask Dk and Df?


Hello,I was wondering if anyone happens to know the dielectric constant and losstangent for DSR-3241......

asked by fisayo.adepetun lastest answer by fisayo.adepetun

4 years 8 months 5 days

0

votes

2

answers
2879 views

Generic vs. specific stackups for PCB designers


I have a question targeted at the design and signal integrity engineersâ??perspective, not PCB fabri......

asked by jeff.loyer lastest answer by buenoshun

4 years 8 months 18 days

0

votes

2

answers
3822 views

redriver issue


Hi all,I think redriver is an old and still difficult topic.we approach in simulation, redriver can ......

asked by zhangjun5960 lastest answer by zhangjun5960

4 years 9 months 7 days

0

votes

9

answers
4229 views

Impact of pad cap on return loss


Hello Experts,I am designing a package for a 12 Gbps Serdes.The package layout is showing a differen......

asked by amit.j.kumar lastest answer by al

4 years 10 months 22 days

0

votes

6

answers
3304 views

Free Transmission Line Calculator


Hi,I've recently returned to consluting work and have the opportunity torelease some tools I develop......

asked by tim lastest answer by michael.huang

4 years 10 months 29 days

0

votes

4

answers
3119 views

[SI-List]: S parameters for Multi-point Topology


Hi All,I am extracting S parameters of multi-point topology where a traces startsfrom controller and......

asked by ah.vinod lastest answer by ah.vinod

4 years 10 months

0

votes

12

answers
2648 views

Experiences with Nelco N4000-13 EPSI


Hi :)Anyone with experiences in designing with Nelco N4000-13 EPSI materials?(Datasheet - http://www......

asked by droolia.gillard lastest answer by mervin.jacob

4 years 10 months 16 days

0

votes

5

answers
2002 views

[SI-LIST]: NEXT unaffected by channel losses


Hi All,Have a basic question on crosstalk NEXT.The magnitude of the near-end crosstalk is dependent ......

asked by ah.vinod lastest answer by scott

4 years 11 months 1 day

0

votes

2

answers
2202 views
5 years 27 days

0

votes

7

answers
2647 views

critical insetion loss at 4GHz for PCIe 3


Hi experts,I have a question that "PCI Express® Base Specification Revision 3.0" hasno illustration......

asked by zhangjun5960 lastest answer by stevenzhaozhenwei

5 years 6 days

0

votes

2

answers
2033 views

DF of cable's dielectric


Dear Sir/Ms.We have two questions about the high speed twinAx cable. Hope someone can kindly help me......

asked by Echo.Ma lastest answer by leeritchey

5 years 11 days

0

votes

1

answers
2068 views

RO4350B vs Megtron6


Hi SI communityI'm wondering if someone can share with me his experience on PCB lossesmeasurement fo......

asked by cristian.gozzi lastest answer by cristian.gozzi

5 years 2 months 12 days

0

votes

5

answers
2093 views

Re: Phase or Frequency drift when hitting a cable


IvanMicrophonics are a known issue with coaxial cable. You can see this in acable by hooking it up t......

asked by tom lastest answer by krhoads

5 years 2 months 20 days

0

votes

1

answers
1892 views

[SI-LIST]: Differential Signal S Parameters


Hi All,I was extracting 4 port S parameters for differential signal on FR4 PCBtrace referenced to gr......

asked by ah.vinod lastest answer by ah.vinod

5 years 2 months 22 days

0

votes

4

answers
3033 views

tight coupling vs EMI


Hello experts,For high frequency signals, it becomes important to widen the traces to reduce inserti......

asked by amit.j.kumar lastest answer by leeritchey

5 years 3 months 20 days

0

votes

4

answers
2759 views

TDR & Impedance rise in lossy interconnects


Hello,When running a TDR measurement on a lossy channel such as long backplane Ialways see a positiv......

asked by bbakshan lastest answer by bbakshan

5 years 4 months

0

votes

5

answers
2130 views

Origin of Return Loss In SERDES Spec's


Experts,I have a few questions about why and the way in which return loss is spec'd in various stand......

asked by kowal_edward2007

5 years 4 months 8 days

0

votes

0

answers
2129 views

Convert S-parameter to ABCD matrix and extract ma......


Hi,I am trying to extract loss tangent and dielectric constant of a materialfrom S-parameter. I foun......

asked by vinaysmail lastest answer by istvan.novak

5 years 4 months 9 days

0

votes

3

answers
2136 views
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