YAGI ANTENNA STUDY
Abstract
An experimental study of the near fields of yagis was undertaken. Quantities measured were the surface wave phase velocity, longitudinal and transverse field decay; excitation efficiency, tolerance effects, ohmic losses, and behavior near the source. Particular emphasis is given to long maximum gain yagis (up to 3OO lambda in length) and how the above quantities enter to limit the gain. A partially empirical theory is developed from the extensive measured data which gives a simple picture of the fields around a yagi suitable for computing far field patterns without the errors of the Hansen-Woodyard theory. This theory would be applicable to other parasitic linear, endfire antennas.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 06, 1960
- Accession Number
- AD0238120
Entities
People
- Alan F. Kay
Organizations
- Control Data Corporation