CIRCULAR ARRAYS OF BEVERAGE ANTENNAS FOR HIGH FREQUENCY DIRECTION FINDING.
Abstract
Modification of the AN/FRD-10 channel watcher as a D/F receiver and indicator for use with a Beverage array and a 180 input diode commutator is now 100 per cent complete. Plans were initiated in July to make bearing studies on the 112 meter Beverage array (112 meter long an tennas spaced 2 degrees), however, a requirement to use the commutating system for specialized tests outside the United States necessitated postponement of these data. Bearing studies will be resumed as soon as the equipment is returned to Southwest Research Institute. Analysis of results obtained on the crossed-over array in dicate that experimental investigation of a crossover design may be conveniently carried out at the 112 meter site which now consists of noncrossed-over antennas. This investigation will be concerned with methods of isolation for frequencies above 10 mc in the crossover region. Equations have been derived and programmed for the Institute's digital computer to calculate both azimuth and elevation patterns for various circular sector arrays o Beverage antennas. This program is ready for use and patterns will be completed during the coming interim period. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 23, 1963
- Accession Number
- AD0417897
Entities
People
- Douglas N. Travers
- Paul E. Martin
Organizations
- Southwest Research Institute