Title :
Closed form expression for input impedance of VLF small antenna located on Earth surface
Author :
Gogoi, A.K. ; Raghuram, R.
Author_Institution :
Assam Eng. Coll., Guwahati, India
Abstract :
A closed form expression for input impedance of a very low frequency small loop antenna located on the Earth surface is presented. The derivation uses an exact expression obtained via Sommerfeld integral representation for the magnetic vector potential of a horizontal current element radiating over a dissipative half space.
Keywords :
antenna radiation patterns; electric impedance; integral equations; loop antennas; Earth surface; Sommerfeld integral representation; VLF small antenna; antenna radiation; closed form expression; dissipative half space; exact expression; horizontal current element; input impedance; magnetic vector potential; radiation resistance; self reactance; underground mine communication; very low frequency; Computer aided engineering; Conductors; Earth; Educational institutions; Immune system; Inductance; Magnetic flux; Surface impedance; Surface resistance; Time varying systems;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631483
