Passive Whip Antennas Useful in High RF Environments

April 16, 2015

As an antenna gets very short with respect to a wavelength, its resistance component becomes very low, and its (capacitive) reactance increases substantially. Therefore, the antenna has very high impedance and needs to be tuned. When the amount of inductive reactance added in series with the antenna is equal to the capacitive reactance at the desired frequency, a large increase in signal level will occur; the antenna is now resonant.

Read more at: http://www.radioworld.com/article/passive-whip-antennas-useful-in-high-rf-environments/275634


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