Stripline's characteristic impedance

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SUMMARY

The discussion centers on the effects of varying the width (W), substrate thickness (b), relative permittivity (epsilon_r), and dielectric thickness (t) on the characteristic impedance (Z0) of a stripline. It is established that increasing W generally decreases Z0, while increasing b and epsilon_r tends to increase Z0. The impact of t on Z0 is more complex and requires further analysis. Participants emphasize the importance of understanding transmission line construction and the relevant equations governing these relationships.

PREREQUISITES
  • Understanding of stripline geometry and its components
  • Familiarity with characteristic impedance (Z0) calculations
  • Knowledge of dielectric materials and their properties
  • Basic principles of transmission line theory
NEXT STEPS
  • Research the mathematical formulas for calculating characteristic impedance in striplines
  • Explore the effects of varying dielectric constants on transmission line performance
  • Learn about the impact of substrate thickness on signal integrity
  • Investigate simulation tools for modeling stripline behavior, such as HFSS or CST Studio
USEFUL FOR

Electrical engineers, RF designers, and students preparing for exams in transmission line theory and stripline design.

peripatein
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THIS IS NOT A HW/COURSEWORK QUESTION!

I am simply revising for an exam and am trying to better understand the behavior of the stripline as shown in the file attached. What would be the effect on the characteristic impedance, as W/b/epsilon_r/t increases (each separately)?
 

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peripatein said:
THIS IS NOT A HW/COURSEWORK QUESTION!

I am simply revising for an exam and am trying to better understand the behavior of the stripline as shown in the file attached. What would be the effect on the characteristic impedance, as W/b/epsilon_r/t increases (each separately)?

I may still move this to the Homework Help forum, but I'm not sure yet. Part of posting there is writing the Relevant Equations and showing your Attempt at a Solution. You have done neither so far. Please show us what you know so far about transmission line construction (including the definition of Zo), and tell us what you think about the variations in dimensions and characteristics, and their effect on Zo...
 

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