EM Waves Generated by an LC Circuit?

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SUMMARY

The discussion centers on the generation of electromagnetic (EM) waves by a series LC circuit operating at its resonant frequency. It is established that the frequency of the generated EM waves corresponds to the resonant frequency of the circuit, while the wavelength is determined by the physical dimensions of the circuit and the properties of the inductor and capacitor. The electric (E) and magnetic (B) fields of the EM waves are always in phase, contrary to the initial assumption that they might be 180 degrees out of phase. The conversation highlights the complexities of transitioning from circuit behavior to EM wave propagation, emphasizing the role of current distribution and the importance of antenna design for effective radiation.

PREREQUISITES
  • Understanding of LC circuits and their resonant frequency
  • Familiarity with electromagnetic wave propagation principles
  • Knowledge of Maxwell's equations and their implications
  • Basic concepts of antenna design and impedance matching
NEXT STEPS
  • Study the relationship between resonant frequency and wavelength in LC circuits
  • Learn about the implications of Maxwell's equations on EM wave behavior
  • Explore antenna design principles, focusing on impedance matching and radiation efficiency
  • Investigate the effects of current distribution in conductors on EM radiation
USEFUL FOR

Electrical engineers, electronics hobbyists, and anyone interested in the principles of electromagnetic wave generation and antenna design will benefit from this discussion.

  • #31
Great discussion! Thank you all. My main takeaway is that electrical circuits, LC in particular, are much more complicated than indicated in Wikipedia entries. 😂
 
  • Love
Likes Tom.G

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