Input admittance of a circular waveguide aperture covered by a dielectric slab.
Circular waveguide aperture input admittance covered by dielectric coating derived from integral transforms and compared with measurements
Bailey, M. C.↗
SEARCH · Search NASA
Results for “SWIFT”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
The input admittance of a rectangular waveguide-fed aperture under an inhomogeneous plasma - Theory and experiment.
Input admittance of waveguide-fed rectangular aperture under flowing and stationary inhomogeneous plasmas, noting dependence on various plasma properties
Cockrell, C. R.↗
The admittance of a parallel-plate waveguide aperture illuminating a metal sheet.
Admittance of parallel plate waveguide aperture with infinite flange illuminating metal sheet, using wedge diffraction theory and integral transform method
Burnside, W. D.↗
Particle acceleration by electrostatic waves with spatially varying phase velocities.
Acceleration of charged particles in strong DC magnetic field by electrostatic waves with spatially varying phase velocities integrated numerically on IBM 360/65
Gary, S. P.↗
Radiation characteristics of a cavity-backed cylindrical gap antenna.
VHF cavity backed cylindrical gap antenna input tuning impedance and equatorial radiation patterns controlled by cavity adjustments
Campbell, T. G.↗
Admittance of a waveguide-fed aperture loaded with a dielectric plug.
Waveguide fed rectangular aperture antenna with dielectric plug load, describing admittance resonant perturbation due to excited TE mode
Swift, C. T.↗
High temperature ion source
Modified Nielsen-type ion source produces temperatures up to 1500 degrees C and permits obtaining a plasma from low vapor-pressure materials. Design minimizes thermal stresses. Dual-filament discharge chamber achieves the high temperature and provides independent control of the heating and electron emission functions.
Swift, R.↗
A theoretical investigation of electromagnetic waves obliquely incident upon a plasma slab
Electromagnetic wave obliquely incident upon plasma slab considered as boundary value problem
Swift, C. T.↗
Experimental investigation of a plasma covered, axially slotted cylinder antenna
Equatorial patterns measurement of plasma covered axially slotted cylindrical antenna, describing discharge tube, facility and Langmuir probe survey of tube electron density
Castellow, S. L., Jr.↗
Energy dependence of the 4610- and 4765-A lines of Ar/plus/ excited in low-energy He/plus/ plus Ar collisions
Energy dependence and threshold behavior of ion Ar lines excited in low-energy He ion-Ar collisions
Lipeles, M.↗
Waveguide antennas illuminating a metal sheet
Admittance measurements of rectangular or circular waveguide fed aperture antennas illuminating displaced metal plate
Bailey, M. C.↗
Apollo 12 lunar module impact - Laboratory simulation and possible downrange ballistic effects
Apollo 12 lunar module impact laboratory simulation, investigating possible downrange ballistic effects and cratering process
Johnson, S. W.↗
Scorpius XR-1 - Some X-ray and optical observations /1969 May/
Simultaneous X ray and optical observations of Scorpius XR-1, comparing rocket data from various flights
Burginyon, G. A.↗
RAM C-3 S-band diagnostic experiment
RAM C-3 S band diagnostic antenna systems and calculations of electron density profiles
Beck, F. B.↗
Kinetic theory of electromagnetic waves obliquely incident upon a plasma slab
Kinetic theory of electromagnetic waves obliquely incident upon plasma slab considered as boundary value problem
Crownfield, F. R., Jr.↗
A note on scattering from a slightly rough surface
Bistatic radar scattering cross section from slightly rough perfectly conducting infinite surface, using Fourier transform
Swift, C. T.↗
Wave-plasma interaction models useful for calculation of signal loss during reentry
Explore the source record for details and available documents.
Evans, J. S.↗
Laboratory and field evaluation of an underwater sand height gage
An underwater sand height gage was investigated. This instrument consisted of two transducers, one screened and one unscreened. Laboratory experimentation included static and dynamic tests with three test sands--fine, medium, and coarse. Field tests were conducted at Rudee Inlet, Virginia Beach, Virginia. Test results showed a linear response to up to 10 inches of sand loading. Deviation observed in identical tests appeared to be due to variation in the density of sand. Density differences reflected varying packing styles which, in turn, were a consequence of grain size and flow regime. Further evaluations of the sand height gage reflect this instrument's potential.
Swift, D. J. P.↗