Superposition of magnetic fields

AI Thread Summary
The superposition principle can be applied to magnetic fields, allowing for the analysis of multiple interacting fields. In the context of magnetically coupled loop antennas, the interaction between the transmitter and receiver antennas, along with the coupling coils, creates complex magnetic fields. The challenge arises from the close spacing of the antennas and coils, leading to overlapping magnetic fields that must be visualized. While superposition is effective in free space, its application may differ in various media. Understanding these interactions is crucial for accurately visualizing the magnetic field lines at the receiver position.
temujin
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Hi

a short question: can I use the superposition principle for magnetic fields?


reegards
tem
 
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Of course you can. Do you have a specific problem in mind?
 
yes, I do...
(hard to explain without circuit diagrams but)

I am working with magnetically coupled loop antennas. In my tests I have one transmitter antenna+a receiving antenna. Then a coupling coil consisting of 2 coil connected with a wire, so that one of the coils interfaces with the rx the other with the tx.)

Tx antenna generates an alternating magnetic field, current is induced in the1st coupling coil, magnetic field is created in the 2nd coupling coil and finally a voltage is induced in the rx coil. :-)

Problem is that rx antenna+the 2 coils in the coupling coils are closely spaced, so that all the magnetic fields interact.

I need to visualize the magnetic field lines at the rx position, but I am not sure how to do it since there are incident magnetic fields and induced ones.

t.
 
Superposition will work in free space, but not necessarily inside a medium.

Claude.
 

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