The conical horn‐reflector antenna was selected for the satellite communication ground station because of its broadband and low‐noise properties. Prior to the construction of the full‐size antenna, theoretical and model studies of its electrical characteristics were undertaken. These studies consisted of computing gain and radiation patterns for two modes of excitation, constructing of model antennas and measuring them. Results of these studies are presented in this paper together with results of the measurements of the full size antenna at Andover, Maine.
Thermally induced cracks can occur at the interface between land and PTE barrel, hence, a measure of electrical continuity of the interface connection is important in product quality assessment and reliability projection. Series circuits with poor resolution are generally used to monitor circuit integrity during thermal tests. A much more sensitive method of measuring the interface directly is described.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.