Increase Near Field Coverage & Power Use: Can It Be Done?

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Discussion Overview

The discussion focuses on the potential to increase the coverage and power usage of the near field effect, particularly in relation to the size of the transmission source and the wavelength involved. Participants explore the feasibility of saturating specific areas with electromagnetic fields and the implications of power requirements for such experiments.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions whether the saturation point of the near field effect can be increased to cover a 20'x30' area, considering a wavelength of seventy-five feet.
  • Another participant suggests that the near field's size is related to both the wavelength and the size of the source, implying that a larger wave source would be necessary for a larger near field.
  • A different participant discusses the relationship between the transmission antenna size and frequency, mentioning specific dimensions for coils and questioning the feasibility of saturating a ten-foot square chamber with a specific power requirement.
  • There is a mention of the possibility of repeating experiments at varying distances with more powerful radio frequency generators (RFG) and larger transmission and receiving antennas.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between the size of the source and the near field effect, indicating that the discussion remains unresolved with multiple competing perspectives on the feasibility of the proposed experiments.

Contextual Notes

Participants have not reached a consensus on the necessary conditions for achieving the desired saturation of the near field effect, and there are unresolved assumptions regarding power requirements and antenna sizes.

Robert D
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My apologies in advance if I chose the wrong prefix.

Can saturation point of the near field affect be increased in coverage\distance? I know it says one wavelength, but if that wavelength is seventy five feet? Is it possible to to saturate an area of say 20'x 30'? and if so, would the power usage simply be too great to accomplish this?

Thank you for your time

Robert D
 
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If I understand the matter correctly, I think the main problem you will run into is that not only is the near field effect a function of the wavelength, but also the size of the source. That is, the near Field's size is on the same order of magnitude in size as the source. So, for a 10x10 meter near field, you'd need a very large wave source.
 
Forgive me, I am just starting my to research this matter.

Are you talking the size of the transmission antenna, as I understand this it's directly related to the frequency, so a 13.56Mhz would create a coil totaling 72' +- of wire. The 20'x 30' I threw out was arbitrary, but if I used this wavelength and say transmission & receiving coils of 3' dia (roughly 8 wrapped coils), would it be possible to saturate a chamber ten foot square? I'm guessing I'd need an RFG somewhere in the range of 5Kw's or higher if it's possible at all.

Ultimately what I am trying to find out is can this experiment be repeated at varying distances if you used a more powerful RFG and spread the transmission and receiver antennas out to wider coils?

John Kanzius video: https://youtu.be/4fYc_MRG2wM

Thank you for any help and opinions.

Robert
 
Last edited:
Thank you, I actually answered my own question about an hour after my second post on this subject.
 

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