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 MIL-HDBK-419A
Figure 8-4. Wave Impedance versus Distance from Source
8.3.2.1 Low Impedance Field.
A loop, or magnetic dipole, antenna produces an EM wave which is predominantly magnetic in the near field
where r is the distance from the antenna and is the wavelength of the EM field. For such magnetic
(low impedance) EM fields, the reflection loss can be approximated as follows:
(8-8)
where
8-10
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