Novel Cave Radio Antenna uses Small Ceramic Tiles
BCRA: British Cave Research Association
Open access under a Creative Commons CC-BY-NC licence.
Induction loop antennas are often inefficient due to skin and proximity effects, self-capacitance and tuning losses. However, an electric field antenna will generate a magnetic field which, in some circumstances, can exceed the field strength available from a loop antenna of similar mass and power dissipation. The main difficulty is in achieving efficiency at a small size. David Gibson explains how this may be achieved using high-permittivity ceramic tiles.
This is the final version of the article. Available from BCRA via the URL in this record.
Vol. 71, pp. 14-15