Relationship between SNR and shielding effectiveness

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SUMMARY

The relationship between shielding effectiveness and Signal-to-Noise Ratio (SNR) is complex and requires a two-step approach. First, calculate the shielding efficiency, typically expressed in decibels (dB), before determining its impact on SNR. The discussion emphasizes the importance of understanding the specific modulation scheme and type of noise present in the channel to accurately compute SNR. For practical applications, aluminum foil is suggested as a shielding material for a dome covering both transmitter and receiver.

PREREQUISITES
  • Understanding of shielding effectiveness and its measurement in decibels (dB)
  • Knowledge of Signal-to-Noise Ratio (SNR) calculations
  • Familiarity with modulation schemes used in communication systems
  • Basic principles of noise in electronics
NEXT STEPS
  • Research methods for calculating shielding efficiency in dB
  • Learn about different modulation schemes and their impact on SNR
  • Explore the effects of various types of noise on SNR calculations
  • Study practical applications of aluminum foil as a shielding material in electronics
USEFUL FOR

Electronics engineers, communication system designers, and anyone involved in optimizing signal integrity in noisy environments.

e0ne199
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Hello everyone, I have a question regarding shielding effectiveness and how it relates to SNR. Do you know what equation should be used to calculate SNR based on shielding effectiveness? Let's say the shield is an aluminum foil made into a dome covering transmitter and receiver inside. A general equation is really ok for me, as long as it is understandable. Your answer is really appreciated, thx before.
 
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I don't think that is a question with an easy answer
Are you only considering "noise" due to interference? If so, what is the spectra?
How are you quantifying "shielding efficiency"? The attenuation in dB?

At the very least you need to split the question into two, i.e. calculate the shielding efficiency first, and then consider what that means for your SNR.
Generally speaking, this is not trivial.
 

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