Time–Domain Propagation Measurements of the NASA Space-Power Facility

Robert T. Johnk; John D. Ewan; Paul M. McKenna; Ronald L. Carey; Nicholas DeMinco

Abstract: This report describes a recent measurement effort conducted by the Institute for Telecommunication Sciences at a chamber located at the NASA Space Power Facility (SPF) in Sandusky, Ohio. The report describes the chamber and the measurement system, and provides some selected time– and frequency-domain results. A detailed description of the measurement procedures and post-processing is provided. The results obtained indicate that the SPF chamber exhibits robust reverberant behavior. The flexibility and efficiency of time–domain measurements is also demonstrated.

Keywords: antenna; impulse; biconical; chamber; decay time; direct pulse; discone; electromagnetic; finite-difference time-domain; fast Fourier transform; joint time-frequency analysis; log-periodic; oscilloscope; reverberation; ultra wideband

(10-471.pdf)

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

Back to Search Results