FEASIBILITY OF DESIGN OF OMEGA ANTENNAS BY FERRITE-LOADING TECHNIQUES
Abstract
Ferrite-loading techniques for transmitting antennas were investigated extensively for application to the design of VLF, LF, and HF radiators. In a previous technical report the theoretical analysis of linear loading was developed. Experimental verifications conducted at H.F. (2 to 26 mcs) provided excellent agreement with the theoretical calculations. On the basis of these results, a design of transmitting antenna system for Omega application was developed. This consisted of a cage-type structure built with 500-ft ferrite-loaded monopoles, supported by means of 500- or 650-ft towers. To provide a check of the validity of the extrapolation, an experimental investigation of a low-frequency antenna representing approximately a 10-to-1 model of the proposed Omega system was undertaken. After a thorough study of ground-plane techniques and requirements, a site was selected at Nutley, NJ. and a 100-fthigh vertical monopole using ferrite-loading techniques was built. Permission for the erection of the required 100-ft towers was granted. Although, at the date of the writing of this report, the investigation of the properties of this transmitting system is not completed, a wealth of experimental results of great technical significance was obtained.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1965
- Accession Number
- AD0360988
Entities
People
- A. M. Passalaqua
- G. Rakowsky
- L. M. Vallese
Organizations
- ITT Corporation