The Current Structure on a Half-wave Dipole - Lesson 2
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- čas přidán 25. 06. 2024
- This lesson discusses the current structure that forms on a half-wave dipole driven by a sinusoidal source, which is approximately sinusoidal. When the antenna is driven at exactly the half-wave frequency, the current magnitude forms a standing half-sinusoid along the length of the dipole, with nulls at either end of the dipole and a maximum at the center. This course was created for Ansys Innovation Courses by Dr. Kathryn Leigh Smith, assistant professor, University of North Carolina-Charlotte, in partnership with Ansys.
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This series on antennas is the best I've found anywhere, please keep them coming! Really unlocking my understanding of some of these concepts I've only read about before. Thank you!!
Thanks! I'm glad you like the videos!
Just Perfect , Really !
@ 2:56 With a target-frequency of 5 GHz the wavelength is 0.06 m. Thus, the half-wave dipole antenna is only 3 cm. long.
en.wikipedia.org/wiki/Dipole_antenna#/media/File:Half_%E2%80%93_Wave_Dipole.jpg
Well done !!! Best explanation
Good video!!!
Well, in a short Period of time to give all the necessary information, good Job done!!
Thank you!
Does the charge concentrate at the ends or uniformly over the polar length?
I love you
Great explanation
Thank you!
Thanks, can you please explain transmission line model for microstrip antenna
better than books. thank you
You're welcome! Thank you for the feedback!
Viva prep done. Thanks ma'am 😁
Thank you!
I have a question: Can we connect the two ends of a dipole antenna with a wire which is set up along the dipoles?
Thanks for the lesson!
Is there an easy visual explanation of why an antenna being physically too short for a given frequency is iess efficient, but still able to generate a transmission on that frequency? Maybe a sinewave shown on graph and some kind of pushing force behind the wave (until the element ends, but the wave is still created beyond that point?)
Does anyone know how significant the gap in between the two poles is? For example, how big can this gap get before it has a negative consequential impact on the efficency of the antenna, and what those consequences be, as I assume this gap is included as part of the effective antenna length