NEAR FIELD MEASUREMENTS ON A LOGARITHMICALLY PERIODIC ANTENNA
Abstract
Near-field measurements on a triangular-tooth log periodic antenna reveal that two waves exist on the structure. A transmission line wave travels from the apex to the active region of the antenna and excites currents in the teeth in this region. These currents in turn launch a radiated wave which accounts for the far-field pattern characteristics of the antenna. The antenna is shown to exhibit a pronounced degree of increased directivity. Near-field measurements made through one period of operation show smooth variations of the field distributions with frequency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1962
- Accession Number
- AD0278588
Entities
People
- Claes T. Elfving
- Raymond E. Franks
- Ross L. Bell
Organizations
- Sylvania Electric Products