Further experiments on ion-cyclotron-wave generation in the RF self-sustained mode.
Ion cyclotron wave generation in RF self sustained mode improved by installing grid structures in plasma near magnetic mirrors
Hettel, H. J.↗
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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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RF voltage breakdown in coaxial transmission lines.
RF voltage breakdown in air for 50 ohm coaxial transmission line configuration
Woo, R.↗
Flight and laboratory tests of an ''L-band'' telemetry RF system.
Laboratory and flight tests of airborne solid state UHF telemetry transmitter, discussing miniaturized coaxial hardware from RF power conservation viewpoint
Borek, R. W.↗
Improved antenna pattern recorder provides visual display of RF power
Antenna pattern recording system has a discretionary signal level monitor which senses a specified minimum level occurring between sampling intervals. This enables RF power and percent coverage to be calculated more accurately.
Lipin, R., Jr.↗
Technique for lowering the noise figure in RF amplifiers
Low-level RF amplifiers are operated at noise figures at or near the theoretical minimum, while maintaining high-gain stability. Formulas for the minimum amplifier noise figure value are derived from the analytical noise-figure expression involving the parameters of the equivalent circuit representing the actual system.
Bellomo, A. F.↗
Aerial RF noise measurement in urban areas at UHF frequencies
Aerial RF noise measurements in urban areas at UHF frequencies
Anzic, G.↗
RF radiation hazards to space station personnel
RF radiation hazards to space station personnel
Inman, R. A.↗
Apollo communication systems support. Task 8b-RF sputtering system, task 8c-high ohms/square resistive films Final report
RF sputtering system and techniques for sputtering high ohms/square resistive films to form thin film resistors used in Apollo communication systems
Source record↗
RF Voltage Breakdown in Coaxial Transmission Lines Final Report
RF voltage breakdown in coaxial transmission lines
Woo, R.↗
Rf-sputtered cadmium sulfide 'thin crystals'
RF-sputtered CdS thin films structural and electrical characteristics from X ray diffractometer tracings, reflection electron diffraction and X ray double crystal spectrometry
Lagnado, I.↗
Lamb shift with circularly polarized rf-field in foil-excited H beam
Time and power dependent Lamb shift resonance shapes measurement with circular polarized RF field in beam foil excited H atoms
Andrae, H. J.↗
Experimental investigations of simulated-fuel containment in RF heated and unheated two-component vortexes
Simulated-fuel containment in RF heated and unheated two-component vortexes for application to nuclear light bulb engine
Jaminet, J. F.↗
Experimental investigation of a high-intensity RF radiant energy source to simulate the thermal environment in a nuclear light bulb engine
High intensity RF radiant energy source to simulate thermal environment in nuclear light bulb engine
Roman, W. C.↗
Arc protection system for high-power RF amplifiers
Protective system prevents damage or destruction of high-power RF amplifiers by arcs which may occur in output transmission line. Advantages of system are listed.
Chernoff, R. C.↗
A 10.6 micron laser-receiver RF subsystem
One of the problems inherent in the use of optical communication systems is the exceedingly high Doppler shift which can be expected. With the recent development of stable, linear, octavebandwidth, voltage-tunable oscillators, this problem has been solved. A laboratory tracking receiver which is capable of tracking a 1-GHz frequency shift at rates up to 12 MHz/s with subsequent coherent data demodulation was designed and tested. This work demonstrates that the design and fabrication of an RF subsystem, utilizing coherent demodulation of data, for wideband communications systems is now both feasible and practical.
Santarpia, D. E.↗
RF quantity gauging system
The modifications, calibration, and tests of the RF liquid mass gaging system, Benedix Type X1625027, are given. Also given are test methods, test results, and optimum performance of the system.
Source record↗
High power microstrip RF switches.
Description of a microstrip-type single-pole double-throw switch, which uses only two PIN diodes, eliminates usual dc blocking capacitors, and has demonstrated an RF power handling capacity greater than 100 W CW at S-band. The insertion loss is less than 0.25 dB, and the input-to-off port isolation is greater than 36 dB over a bandwidth larger than 30 MHz.
Choi, S. D.↗
RF to digital converter
Converter can be used for automatic spectrum analysis. Automatic gain amplifier digitizes RF amplitude, and amplifier gain is measured by binary counter. Amount of gain corresponds to signal level and is proportional to count in counter. System can be used to calculate AM and FM modulation index and other parameters of pulse-modulated FM waves.
Flanders, T. E.↗