Compensating bandwidth switching transients in an amplifier circuit Patent
Phase locked demodulator with bandwidth switching amplifier circuit
Hoffman, L. A.↗
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Digital memory sense amplifying means Patent
Digital magnetic core memory with sensing amplifier circuits
Milligan, G. C.↗
Spacecraft Integrated Parametric Amplifier Development
Integrated solid state C band parametric amplifier for use in space shuttle communication receiver
Dalle Mura, P. H.↗
Microwave traveling wave tube amplifiers for space communications systems
High power microwave traveling wave tube amplifiers for space shuttle communications and tracking systems
Kendall, B. M.↗
Experimental verification of the design of an axial injection crossed-field amplifier
Design of S band axial injection cross field amplifier for satellite borne transmitter
Mcdowell, H. L.↗
A high power, high efficiency crossed-field amplifier
Design concepts providing high plate efficiency in high power injected beam crossed field amplifier capable of CW operation with conduction or liquid cooling
Herriott, R. W.↗
Optimum efficiency of a cascade of low-gain amplifiers
Low gain microwave amplifier cascade DC to RF conversion efficiency analysis
Steinbrecher, D. H.↗
EEG electrode-amplifier harness
Astronaut electrode-amplifier helmet harness for cable and radiotelemetry acquisition of EEG, EGO, EMG and blood pressure data on noninterference basis
Adey, W. R.↗
Output pulse amplitude from lithium-drifted detector-amplifier combination under conditions of carrier diffusion and bulk and surface recombination
Output pulse amplitude from lithium-drifted detector-amplifier combination under conditions of carrier diffusion and bulk and surface recombination
Tuzzolino, A. J.↗
A versatile pulse amplifier
Versatile pulse amplifier for use with scintillation counters, surface barrier detectors, proportional counters or channel electron multipliers
Lampton, M.↗
Integrated parametric amplifier module with self-contained solid-state pump source
Integrated S band microstrip parametric amplifier modules with self contained Gunn effect pump oscillator for space flight applications
Allen, C. M.↗
Possibility of a unidirectional laser amplifier produced by monochromatic optical pumping of a coupled Doppler-broadened transition
Unidirectional gas laser amplifier using monochromatic optical pumping of coupled Doppler broadened transition
Feld, M. S.↗
A Differential ECG Amplifier with Single-Ended Output
Three-stage amplifier is used for ECG measurements which require conversion of differential input to single-ended output. Circuit may be useful in biological telemetry for amplification of signals from specimen-implanted sensors.
L Katchis↗
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.↗
S-band microcircuit power amplifier
Research, design, development, and fabrication of a two-stage, solid-state, microcircuit power amplifier operating in the 2.25 GHz region of the S-band are summarized. Output is typically 7.0 watts for an input of approximately 400 mw. Input stage is an MSC 3001 transistor; output stage is an MSC 3005 transistor. Input VSWR is 1.4:1.0, or less. Efficiency of 33.3 percent or more is achieved. Second and third harmonic suppression is 30 db. Operating power is 28 VDC. The entire unit has a length of 3.80 inches, a width of 2.08 inches, and a height of 1.00 inch.
Mcgann, W. E.↗
A wide-band Gunn-effect CW waveguide amplifier.
Broad-band CW amplification with Gunn diodes in waveguide circuits has been obtained, with power gains typically between 10 and 15 dB and half-power bandwidths of more than 1 GHz. It is found that amplifier performance can be modeled with fair accuracy using a rough characterization for the diode parameters.
Sene, A.↗
Isolated output for class-D dc amplifiers
Transformer-coupled output stage is used with pulse-width modulated class-D dc amplifiers. Circuit is comprised of two channels corresponding to negative and positive input signals. Amplitude of secondary-current triangular pulse is function of duration of driving pulse. Therefore, circuit converts pulse-width modulated driving signal to pulse-amplitude modulated signal.
Honnel, M. A.↗
Development of an engineering model traveling wave tube amplifier for space communication systems
A design has been made of a 100 watt traveling-wave tube amplifier for use in space communication applications. The features of very high overall efficiency and heat rejection of waste heat at low thermal densities were predominant in the design concept. The design concept was proven by building a series of tubes, operating at efficiencies up to 50%. These tubes utilized heat pipe cooling and heat distribution such that 150 watts of waste heat was rejected at a density of less than 1.5 watts per square inch. A power supply to convert a 28 volt primary line of the needs of the TWT was built and operated at 85% efficiency.
Eallonardo, C. M.↗