Explore BrainMass
Share

Wave Impedance for near and far field examples

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

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.

© BrainMass Inc. brainmass.com October 25, 2018, 6:14 am ad1c9bdddf
https://brainmass.com/physics/electric-magnetic-fields/wave-impedance-for-near-and-far-field-examples-452846

Solution Preview

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
See Also This Related BrainMass Solution

Waveguides & Cut-off Frequency Examples

Explain what a waveguide is, the cut-off frequency and give examples in everyday use.

View Full Posting Details