COMPACT CHAMBER FOR IMPEDANCE AND POWER TESTING OF VHF WHIP ANTENNAS.
Abstract
The report summarizes the accomplishments on a program to develop a compact test chamber suitable for production testing of VHF vehicular antennas. A compact test chamber consisting of a 12 foot long aluminum cylinder, 1 foot in diameter and lined with Eccosorb NZ-1 ferrite material was developed. This chamber was calibrated with respect to open-field antenna characteristics. Results from an extensive evaluation are presented which attest to the usefulness of the chamber in meeting production and/or field test and alignment requirements. Investigations of the reflectivity characteristics of a number of absorbing materials, the effects of absorbing materials in the near-field of antennas, and the effects of ground plane size on antenna characteristics are described and results from these programs are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1968
- Accession Number
- AD0676846
Entities
People
- Bernard M. Jenkins
- Charles W. Stuckey
- William R. Free
Organizations
- Georgia Tech