HIGH TEMPERATURE ANTENNA INVESTIGATION AND DEVELOPMENT.
Abstract
This quarterly report summarizes engineering effort investigating the design of antennas which are suitable for prolonged operation at a temperature of 2000 F or higher. A niobium S-band waveguide asshas been ordered, and it will be used as an open-ended waveguide an tenna mounted in a ground plane. A ceramic window will be used to seal the aperture. A two-inch thick foamed concrete radome was made, and silicon carbide heating elements were inserted through it. An input of about 3 kw to the heating elements was sufficient to heat a stainless steel S-band waveguide with an alumina window mounted in a ground plane to a temperature of 2000 F. VSWR measurements were made on this (unmatched) assembly over a temperature range of 70 to 2000 F. The VSWR of 6.0 at room tempera ture increased to 6.8 at 2000 F. Work continues on the study of materials whose characteristics may be useful in this program. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1963
- Accession Number
- AD0426802
Entities
People
- G.f. Buranich
Organizations
- Calspan