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Effect of Static Magnetic Field on EM in Near Field - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


dsp_lms
 Post subject: Effect of static Magnetic field on EM in near field
Posted: Thu Jul 21, 2005 7:03 pm 
 
Lieutenant

Joined: Tue Jun 07, 2005 10:56 am
Posts: 2
Location: Canada
Hi All
I want to know how
A Fixed magnet (which casues its own static magnetic field) will affect any other Electromagnetic (radio) signal especially when we are trying to carry energy/information using magnetic component of EM wave which is typical for near field applictions.


Best Regards


 
   
 
Guest
 Post subject:
Posted: Mon Jul 25, 2005 9:33 am 
As long as we are concerned only by the antennas, I don't think a DC field will have any impact. Antenna are resonnant circuit, and so are also the receiving networks, a DC field will be mostly rejected.

Would the situation you describe be a problem we would have a serious issue with the earth magnetic field.


 




Posted  11/12/2012

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