The Beverage Wave Antenna: Currents, Charges and Admittances Volume II. Experimental Measurements,
Abstract
This report presents the results of an experimental and theoretical investigation of the circuit properties of horizontal-wire antennas placed over an imperfectly conducting half-space. Particular emphasis is given to the Beverage wave antenna, a special type of horizontal-wire antenna placed in close proximity to the earth. Earlier work has generally assumed a free-space wave number on the wire, thus neglecting the effect of the half-space. The present study has carefully investigated experimentally the effect of the half-space on the properties of the antenna (current, charge and input admittance) and has included this effect in all theories discussed. The theoretical analysis, appearing in Part I of Vol. I, involves several aspects. The theory of King, Shen and Wu for horizontal wires over an imperfectly conducting half-space was verified experimentally. Discrepancies observed in certain cases were attributed to end effects, not accounted for in the theory. Two semi-empirical theories were subsequently developed which included contributions due to end effects. Both provided good agreement with the measured data. The theory of King was extended to include the Beverage wave antenna and comparison with measured results proved quite acceptable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1977
- Accession Number
- ADA044651
Entities
People
- Robert M. Sorbello
Organizations
- Harvard University