HORIZONTAL END-LOADED VLF TRANSMITTING ANTENNA,
Abstract
A comparison is made of the theoretical and experimental performances of small, easily constructed, VLF transmitting antenna. It is a horizontal end-loaded multiple-dipole antenna which takes advantage of the earth's conductivity. Radiation efficiency, input impedance, bandwidth, and long range field strength measurements were made; phase and amplitude stabilities of the radiated field were measured during rainstorms; and multiple-frequency resonance tuning was investigated. The radiation efficiency of the experimental dipole is modest but is increased considerably by the addition of parallel dipoles. The bandwidth is a very high (25%), and the power radiation capability is far above that of any other type of VLF transmitting antenna. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0839107
Entities
People
- E. W. Seeley
- W. K. Moision
Organizations
- Naval Air Weapons Station China Lake