Designing at Frequencies Below 100 MHz

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  • Author: Gary Breed
Depending on what reference’s definition you choose, the “radio frequency” or “high frequency” part of the electromagnetic spectrum may begin as low as 10 kHz. (And there are applications of radio communications below 10 kHz.) From these lowest frequencies up to approximately 100 MHz, similar design techniques are used, which are much different than those used for design above this frequency range. In this frequency range, component behavior is predictable, and at the lower range may often be assumed to be ideal, since parasitic reactances, losses and other frequency dependent effects are small.