Accession Number : AD0434826


Title :   HIGH TEMPERATURE ANTENNA INVESTIGATION AND DEVELOPMENT.


Descriptive Note : Quarterly interim engineering rept. no. 4,


Corporate Author : CORNELL AERONAUTICAL LAB INC BUFFALO N Y


Personal Author(s) : Buranich,Godfrey F


Report Date : 31 Mar 1964


Pagination or Media Count : 24


Abstract : This report summarizes the investigations for developing antennas which are suitable for prolonged operation at a temperature of antennas was experimentally verified. Aluminum, stainless steel and graphite ground planes were interchanged with no significant change in the antenna pattern gain. Stubs made of copper, tantalum, stainless steel, niobium, graphite and Boride Z - a material made of zirconium diboride and 10% molybdenum disilicide - were interchanged and these also produced no change in radiation pattern gain. Brass models of the stub and scimitar antennas have been made. Fabrication work is progressing on a niobium wave guide slot antenna and on helical antennas of stainless steel, nichrome and tantalum. Refractory materials and their available protective coatings are expected to be suitable for use up to 3000 F. Stainless steel and niobium stub antennas have been made. Radiation pattern gains of these assemblies have produced the same gain as that of the brass model. The model antennas will be housed within a concrete radome while undergoing high temperature tests. Radiation tests have been made through this radome and they have shown that satisfactory high temperature electrical tests of antennas can be made using such a radome. (Author)


Descriptors :   HIGH TEMPERATURE , SCIENTIFIC RESEARCH , SLOT ANTENNAS , DIPOLE ANTENNAS , SPIRAL ANTENNAS , HELICAL ANTENNAS , SLOT ANTENNAS , TANTALUM , NIOBIUM , STAINLESS STEEL , ALUMINUM , S BAND , PHYSICAL PROPERTIES


Distribution Statement : APPROVED FOR PUBLIC RELEASE