Stories
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Briefs: Electronics & Computers
A multichannel dielectric-resonator oscillator (DRO), built as a prototype of a local oscillator for an X-band transmitter or receiver, is capable of being electrically tuned among and within...
Articles: Electronics & Computers
30 Years of Electronics & Semiconductors
In celebration of the 30th Anniversary of NASA Tech Briefs, our features in 2006 highlight a different technology category each month, tracing the past 30 years of the technology, and continuing with a glimpse into the future of where the technology is headed. Along the way, we include insights from industry...
Briefs: Electronics & Computers
A waveguide power-amplifier module capable of operating over the frequency range from 80 to 150 GHz has been constructed. The module comprises a previously reported power amplifier packaged in...
Briefs: Electronics & Computers
A single-chip CMOS-based (complementary-metal-oxide-semi-conductor-based) transmit/receive (T/R) module is being developed for L-band radar systems. Previous T/R module implementations required multiple chips...
Briefs: Electronics & Computers
Devices called “solid-state ferroelectric-based sources” (SSFBSs) are under development as sources of electrons, ions, ultraviolet light, and x-rays for diverse applications in...
Briefs: Electronics & Computers
Two electronic communication-and- control systems have been proposed as means of modifying the switching of traffic lights to give priority to emergency vehicles. Both...
Briefs: RF & Microwave Electronics
System for Better Spacing of Airplanes En Route
An improved method of computing the spacing of airplanes en route, and software to implement the method, have been invented. The purpose of the invention is to help air-traffic controllers minimize those deviations of the airplanes from the trajectories preferred by their pilots that are needed to...
Briefs: Energy
Lightweight, Flexible, Thin, Integrated Solar-Power Packs
Lightweight, flexible, thin, one-piece, solar-power packs are undergoing development. Each power pack of this type is a complete, modular, integrated power-supply system comprising three power subsystems that, in conventional practice, have been constructed as separate units and connected to...
Briefs: Physical Sciences
Electronic heat-transfer devices of a proposed type would exploit some of the quantum-wire-like, pseudo-superconducting properties of single-wall carbon nanotubes or, optionally, room- temperature-...
Briefs: Information Technology
A method of estimating and correcting for the effect of polarization leakage on the response of a heterodyne optical interferometer has been devised. In a typical application in which a...
Briefs: Electronics & Computers
Optoelectronic oscillators (OEOs) of a proposed type would be based partly on the use of fiber-optic linear or ring resonators in place of the long fiber-optic delay lines that have...
Briefs: Electronics & Computers
Arrays of photon-counting detectors and associated digital signal processors have been proposed for receivers in optical communication systems in which the optical signals...
Briefs: Electronics & Computers
Software for Analyzing Telecommunication Link Performance
The Telecom Forecaster Predictor (TFP) is a multi-mission computer program for analyzing deep space telecommunication links. Analysts use the TFP for link planning, performance prediction, and post-pass trending analysis. For each mission, multiple users access a controlled set of TFP...
Briefs: Electronics & Computers
An experimental traveling-wave photomixing device generates narrow-band electromagnetic radiation at frequencies up to a few terahertz. The device is, potentially, a prototype of...
Briefs: Electronics & Computers
An operator interface is undergoing development along with other subsystems of a robot that would assist in caring for elderly and disabled patients. This development has been initiated in...
Briefs: Energy
Modulated (as opposed to steady) light can be used in the optical transmission of power to remotely located sensor circuitry in a system like that described in the preceding article,...
Briefs: Photonics/Optics
The figure schematically illustrates a prototype general-purpose, microprocessor-based sensor and control system in which power, data, and control signals are transmitted via optical...
Briefs: Materials
Microbridges that constitute the superconducting-transition sensory elements of electron-diffusion-cooled hot-electron bolometers can now be fabricated in increased yield and quality....
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