Self-imaging Nd: YAG waveguide laser with 58% slope efficiency
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waveguide laser optical communications↗
SEARCH · Engineering Papers
Results for “WAVEGUIDES”
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.
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Compensation of Gravity Induced Structural Deformations on a 34-Meter Beam Waveguide Antenna
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NASA Deep Space Network (DSN) Dep Space Stations (↗
Improved Blind Pointing of NASA's Beam-Waveguide Antennas for Millimeter Wave Operation
NASA's Deep Space Communications Network (DSN) consists of three complexes of large antennas located at Goldstone, California, Madrid, Spain, and Canberra, Australia.
pointing beam-waveguide antennas millimeter wave↗
High speed 34-m beam waveguide antennas potential uses (orbital debris)
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beam waveguide antennas orbital debris 34-m↗
Fiber Optic Reference Frequency Distribution to Remote Beam Waveguide Antennas
FTS support of DSS 24 for tracking unmanned spacecraft and supporting scientific experiments.
fiber↗
Fiber Optic Reference Frequency Distribution to Remote Beam Waveguide Antennas
In the NASA/JPL Deep Space Network (DSN), radio science experiments (probing outer planet atmospheres, rings, etc.) and very long-base interferometry (VLBI) require ultra-stable, low phase noise reference frequency signals at the user locations.
deep↗
The Characterization of a 34-Meter Beam-Waveguide Antenna at Ka-band (32.0 GHz) and X-band (8.4 GHz)
New antennas for the NASA Deep Space Network (DSN) have been built to replace the aging antennas of older designs for deep space communications.
new↗
First-Order Grating Coupling Coefficients in Asymmetric Three-Layer Waveguides for Transverse Electric Modes
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Jin Huang↗
On the deduction of the reflection factor and of waveguide equation for distorted surfaces with the help of impedance-type boundary conditions <k vyvodu koeffitsienta otrazheniya i vonovodnogo uravneniya polyusov dlya iskrivlennykh poverkhnostey s p
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Kalinin, Yu. K.↗
Interaction of electrons with the field of the wave ho1 in a circular waveguide
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Gilinskiy, I. A.↗
Effects of dielectric covers over cross slots in a rectangular waveguide
Dielectric cover effects on radiation properties of cross slots in rectangular antenna
WAVE RADIATION↗
Higher-order-mode effects on the aperture admittance of a rectangular waveguide covered with dielectric and plasma slabs
Fourier integration of electrical impedance expressions for nonlossy dielectric and lossy plamas
Cockrell, C. R.↗
A simple method for measuring the attenuation constant of waveguides
Silver conductive lacquers in microwave region
Klausmann, E.↗
The application of semiconductors to quasi- optical and waveguide isolators for use at millimeter wavelengths
Utilization of anisotropic effects in semiconductor plasmas for development of millimeter wavelength isolators
Hayes, R. E.↗
A study of dielectric-covered shunt slots in a waveguide
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Croswell, W. F.↗
Gain and saturation intensity measurements in a waveguide CO2 laser.
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Degnan, J. J.↗
Computational methods for studying acoustic propagation in nonuniform waveguides.
A variational technique is used to model sound transmission through a nonuniform duct segment consisting of an axial variation in wall admittance or cross sectional area. The method involves the Ritz minimization of functionals which have the governing equations as stationary conditions. The variational method is verified by application to segments of variables-separable geometry for which eigenfunction expansion techniques offer an alternative solution procedure, and by comparison with the results of stepped duct approximations to the nonuniformity. Quantitative data are presented which indicate the boundary condition matching to be a suitable measure of the accuracy of the transmitted field.
Beckemeyer, R. J.↗