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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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At least 505 records · Page 28

All sources NASA NTRS DOE OSTI

NASA NTRS1968

Research and experimental study for the development of a 1000 watt CW space environment S-band power amplifier

One thousand watt continuous wave space environment S band power amplifier development

Abraham, W. G.↗

NASA NTRS1968

An Integrable IF Amplifier of High Stability

Use of phantom zeros to achieve gain reduction for pole Q in integrable intermediate frequency amplifiers

Kerwin, W. J.↗

NASA NTRS1967

Input Impedance Display of One-Port, Reflection-Type Amplifiers

Smith chart extended into negative resistance and admittance region of one port reflection type amplifiers for input impedance display

Blume, Hans-Juergen C.↗

NASA NTRS1968

An integrated-circuit direct-coupled amplifier.

Integrated circuit direct coupled amplifier design and performance noting reliability, small volume and weight requirement, wide bandpass, etc

Wenzel, G. E.↗

NASA NTRS1968

Microelectronic parametric amplifier.

Integrated S band parametric amplifier design and fabrication using microstrip techniques, describing times four multiplier

Block, A.↗

NASA NTRS1968

Gain and noise considerations in integrated circuits R.F. feedback amplifiers.

Equivalent noise circuit applicable to active RF feedback amplifier

Bellomo, A. F.↗

NASA NTRS1968

An integrable IF amplifier of high stability.

Stable integrable IF voltage amplifier with increased HF capability by gain reduction, showing network realizations for lumped and distributed RC circuits

Kerwin, W. J.↗

NASA NTRS1969

Self-shielding printed circuit boards for high frequency amplifiers and transmitters

Printed circuit boards retaining as much copper as possible provide electromagnetic shielding between stages of the high frequency amplifiers and transmitters. Oscillation is prevented, spurious output signals are reduced, and multiple stages are kept isolated from each other, both thermally and electrically.

Galvin, D.↗

NASA NTRS1969

Field Effect Transistor /FET/ circuit for variable gin amplifiers

Amplifier circuit using two FETs combines improved input and output impedances with relatively large signal handling capability and an immunity from adverse effects of automatic gain control. Circuit has sources and drains in parallel plus a resistive divider for signal and bias to either of the gate terminals.

Spaid, G. H.↗

NASA NTRS1969

Accurate nine-decade temperature-compensated logarithmic amplifier

Transistor-driven temperature-stable amplifier with logarithmic operating characteristics permits presentation of the entire range of the reactor without range switching. This circuit is capable of monitoring ion chamber currents over spans of 8 or 9 decades and is used in nuclear reactor instrumentation. Application is found in materials under ultrahigh vacuum.

Bobis, J. P.↗

NASA NTRS1968