Title :
Trees performing as radio antennas
Author :
Ikrath, K. ; Kennebeck, W. ; Hoverter, R.
Author_Institution :
US Army Electronics Command, Fort Monmouth, NJ, USA
fDate :
1/1/1975 12:00:00 AM
Abstract :
Radio transmission and reception experiments conducted in a tropical jungle are described. The performance of conventional whip antennas is compared with the performance of trees utilized as antennas in conjunction with hybrid electromagnetic antenna couplers (HEMAC´s). The trees were found to outperform the whip in some cases by up to 20 dB.
Keywords :
Antennas; Radio propagation terrain factors; Tropical regions; Vegetation; Couplers; Electromagnetic coupling; Hafnium; Impedance; RF signals; Radio frequency; Radio transmitters; Spirals; Vegetation; Wire;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1975.1141017
