Abstract

The electric component of the strength of an electromagnetic field at low frequencies (30 Hz-300 kHz) is measured by means of electrically short antennas. Geometrically balanced dipole antennas have gained the widest use. A characteristic of short dipole antennas at low frequencies is an increase in their electric unbalance. As is shown in [I], an electrically unbalanced antenna will respond not only to the field strength E but also to its potential r relative to ground. Therefore, the reading of a field-strength meter (FSM) from such an antenna will be determined by the expression

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