Effect of HF Heating Array Directivity Pattern on the Frequency Response of Generated ELF/VLF.
Abstract
Directivity patterns at 3.17 MHz and 5.1 MHz are calculated for the HF antenna array at the high power HF heating facility at the Arecibo Observatory in Puerto Rico. The pattern was calculated using pattern multiplication and method of moment techniques. The calculated pattern is shown to be a good approximation to an experimentally measured pattern in one plane of the array. A simple model was used to approximate the effect of the pattern on the frequency response of ELF/VLF signals generated by the HF heating. The frequency response was determined at two ELF/VLF receiver sites. Results show that ELF/VLF generated by side lobes of the HF pattern have sufficient strength to create a ELF/VLF generated by side lobes of the HF pattern have sufficient strength to create a ELF/VLF interference pattern at receiving locations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1983
- Accession Number
- ADA126809
Entities
People
- A. J. Ferraro
- Bruce Long
- Hwang Sheng Lee
- Kenneth J. Carroll
- Roger Allshouse
Organizations
- Pennsylvania State University