Electrical, Electronics, and Avionics

Amplifiers

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Application Briefs
Defense

Analysis of On-Chip Heat Distribution in the Design of RF Power Detectors and Transistor Arrays

The simulation of electromagnetic (EM) and thermal properties of semiconductor and substrate materials has been demonstrated to be particularly...

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Briefs
Photonics/Optics

Analysis of Analog Photonic Links Employing Multiple-Channel (Arrayed) Receivers

Analog optical links are finding increased application in commercial and military systems ranging from radio-over-fiber applications, antenna remoting, and optical...

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Briefs
Photonics/Optics

Photonic Recirculating Delay Line for Analog-to-Digital Conversion

Aconventional analog fiber-optic link can be augmented with a recirculating optical delay loop so as to realize an optically assisted analogto- digital converter (ADC) that...

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Briefs
Photonics/Optics

Reduced Power Laser Designation Systems

This work contributes to the Micropulse Laser Designation (MPLD) project to develop a six-pound eye-safe micro-pulse laser system to locate, identify, range, mark, and designate stationary and moving targets. MPLD uses laser pulses of much lower energy and higher repetition rates than in existing laser...

Briefs
Photonics/Optics

Effect of Laser Noise on an Analog RF/Photonic Link

Aset of equations has been formulated to enable quantification of several aspects of the performance of an analog photonic communication link as affected by laser noise. A procedure for...

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Application Briefs
RF & Microwave Electronics

Portable Antenna Helps Hurricane Survivors Communicate

Victims of Hurricane Katrina found peace of mind in the aftermath thanks to an inflatable antenna that enabled emergency satellite communications for displaced Mississippians.

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Application Briefs
RF & Microwave Electronics

Microwave RF Amplifier Boosts Communications Power

When you watch TV or use a cell phone, amplifiers make the signal stronger or the voice clearer. A hybrid, high-powered microwave amplifier from Aria Microwave Systems of Teaneck, NJ enables...

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Briefs
RF & Microwave Electronics

Design Study of a C-Band Crestatron

A design study of a crestatron that would operate in the frequency range from 3 to 6 GHz (which overlaps with the C band) has been performed. The basic crestatron concept was developed during the 1950s....

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Briefs
Photonics/Optics

Compact Megawatt Infrared Free-Electron Laser Amplifier

A proposed high-gain free-electron laser (FEL) amplifier, conceived primarily for use in a maritime environment, would be capable of average output power of the order of a megawatt at one...

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Briefs
Photonics/Optics

Apparatus Generates CE-Phase-Stable Two-Cycle Optical Pulses

A n apparatus that includes two optical parametric chirped pulse amplification stages has been built as a means of generating few-cycle, common-envelope (CE)-phase-stable, high-energy...

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Briefs
Electronics & Computers

Improved Magnetic Sensor Based on Giant Magneto-Impedance

A low-power, highly stable electronic sensor circuit for measuring a small change in the ambient magnetic field with high sensitivity exploits the giant magneto-impedance (GMI) effect,...

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Briefs
Electronics & Computers

Front-End Mixed-Signal Receiver on a Chip

A mixed-signal receiver on a chip (RoC) now undergoing development is intended to be a prototype of the front ends of lightweight, compact, low-power, relatively inexpensive heterodyne radio receivers...

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Briefs
Electronics & Computers

Microwave Sources Utilizing Linear Induction Accelerators

Progress has been reported in a continuing effort to develop pulsed, high-power microwave signal sources based on (1) oscillators in the form of relativistic magnetrons containing...

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Briefs
Electronics & Computers

Low-Cost Transmit/Receive Module for Satellite Control and Communications

A multidisciplinary team led by AFRL scientists is developing a geodesic dome phased-array antenna (GDPAA) for a proposed future Air Force (AF) technology demonstration.1...

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