Consider a high-speed PCB trace routed with two 90-degree corners versus one with smooth 45-degree bends. What is the expected effect on signal integrity?

medium🧠 Conceptual Q13 of 15

PCB Design - Advanced Routing Techniques

AThe 90-degree corners cause signal reflections and degrade integrity more than 45-degree bends

BThe 90-degree corners improve signal speed compared to 45-degree bends

CThere is no difference in signal integrity between the two

D45-degree bends cause more noise than 90-degree corners

Step-by-Step Solution

Solution:

Step 1: Understand effect of sharp corners on signals
Sharp 90-degree corners cause impedance discontinuities leading to reflections and signal degradation.
Step 2: Compare with 45-degree bends
Smoother 45-degree bends reduce reflections and maintain better signal integrity.
Final Answer:
The 90-degree corners cause signal reflections and degrade integrity more than 45-degree bends -> Option A
Quick Check:
Sharp corners = more reflections [OK]

Quick Trick: Avoid sharp corners to reduce signal reflections [OK]

Common Mistakes:

MISTAKES

Thinking sharp corners speed up signals
Believing no difference between corner types
Assuming 45-degree bends cause more noise

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More PCB Design Quizzes

Consider a high-speed PCB trace routed with two 90-degree corners versus one with smooth 45-degree bends. What is the expected effect on signal integrity?

Step 1: Understand effect of sharp corners on signals

Step 2: Compare with 45-degree bends

Final Answer:

Quick Check:

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