Premium
Excitation of an infinite antenna above a dissipative earth
Author(s) -
Chang David C.,
Olsen Robert G.
Publication year - 1975
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs010i008p00823
Subject(s) - excitation , physics , loop antenna , antenna (radio) , current (fluid) , dissipative system , dipole antenna , mathematical analysis , antenna factor , mathematics , computer science , telecommunications , quantum mechanics , thermodynamics
The antenna problem consisting of exciting an infinitely long horizontal thin wire with an arbitrary distribution of impressed electric field along the axis of the wire is discussed. The special case of excitation by a delta function voltage source is solved. The current on the antenna is found as a sum of two residue (discrete) contributions and two branch integration (continuous) contributions. The far field and orthogonality properties of both the discrete and continuous modes are discussed. Finally, expressions are given for the current on the antenna. From this current the input conductance of the antenna can be obtained.