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Wave Impedance for near and far field examples

Discuss the nature of the wave impedance at a distance of 1 metre
from the following devices:

(i) A microwave oven operating at a frequency of 2.45 GHz.
(ii) A radio-frequency heat-sealer operating at 27 MHz.
(iii) The field coil of a 'deactivation pad' operating at 60 kHz. The
pad is used in retail stores to demagnetise the tags attached to
merchandise to prevent theft.

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The nature of the electromagnetic wave impedance at a distance of 1 metre
from the following devices is ...

Solution Summary

The nature of the electromagnetic wave impedance at a distance of 1 metre
from the following devices is discussed:

(i) A microwave oven operating at a frequency of 2.45 GHz.
(ii) A radio-frequency heat-sealer operating at 27 MHz.
(iii) The field coil of a 'deactivation pad' operating at 60 kHz. The
pad is used in retail stores to demagnetise the tags attached to
merchandise to prevent theft.

$2.19