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RF Exposure from Small Transmitting Loops
I am curious as to whether RF exposure concerns are greater for a
small transmitting loop [like the MFJ tuned loop] compared to a dipole radiating the same power. It would seem that close to the loop, the RF power density may be greater [than it would be at the same distance from the dipole apex] since the radiating volume is smaller. Can I just assume that the power is evenly distributed on the surface of a sphere having a radius equal to my distance from the loop antenna, calculate the power density on the sphere surface, and use that number for evaluation - or are there some near-field considerations not captured using this approach? Thanks, -JJ |
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