Keyword: Capacitors

Articles: Aerospace

Maintaining technological superiority remains critical for national defense forces. Many face informal adversaries that are adept at harnessing today’s sophisticated civilian technologies, like mobiles, M2M...

Briefs: Defense

Stretchable electronic devices, including solar cells, light-emitting diodes, batteries, and textile supercapacitors, have been developed to retain...

Articles: Aerospace

For the defense industry, NAND Flash, with its lack of moving parts, has made it the common storage medium for a variety of field applications. With its small size, low power usage, high...

Articles: Sensors/Data Acquisition

Researching fault location techniques for the oil industry requires data on the complex permittivity of the polyamide Rilsan at microwave...

Articles: RF & Microwave Electronics

As a vertical market, “defense electronics” encompasses a huge range of systems, from portable communications to transportation, avionics, and shipborne radar. While the power...

Articles: Aerospace

While often used interchangeably, power and energy are not the same. Energy is the capacity to perform and power is the rate at which that capacity is exercised — the...

Briefs: Electronics & Computers
CMOS-Memristor Hybrid Nanoelectronics

The memristor is the fourth fundamental passive electronic device in addition to the resistor, capacitor, and inductor. By integrating with complementary metal oxide semiconductor (CMOS) devices, memristors show promise for development of revolutionary new nanoelectronic computing architectures with...

Articles: Electronics & Computers

Input filter caps need to be able to supply a quick burst of energy and to suppress noise generated in the switch circuit. Important considerations for the input filter cap...

Briefs: Electronics & Computers

In order for the batteries used by soldiers to provide peak power, an increase in battery size and weight is necessary, which is becoming a burden. A light, compact alternative to...

Articles: RF & Microwave Electronics

While power architectures of defense electronics are extremely diverse, all have common operational demands: they must be robust (shock, vibration, temperature...

Briefs: Electronics & Computers

An embedded magnetic memory technology was developed to be integrated into a Complementary Metal Oxide Semiconductor (CMOS) circuit fabrication process to provide radiation-hard...

Articles: RF & Microwave Electronics

Unmanned aerial vehicles, or UAVs, are used in many applications to gather intelligence without risking human lives. These aircraft, however, have limited flight time because of their reconnaissance...

Briefs: Electronics & Computers

Low-power sensors are important to the Army for monitoring infrastructure of the lifecycle of an operation. Isotope batteries can power and operate compact, low-power sensors for...

Briefs: Materials

Wide bandgap semiconductors (e.g., silicon carbide) will enable operation of military systems at temperatures above 150 °C, which eases thermal...

Briefs: Physical Sciences
Reducing Thicknesses of PbZrₓTi₁₋ₓO₃ Films in Capacitors

A document describes experiments performed to determine effects of reducing the thicknesses of films of lead zirconate titanate (PbZrxTi1-xO3, wherein 0<x<1) used as ferroelectric dielectric layers in some capacitors. The fabrication of...

Briefs: Information Technology

A study was performed to evaluate the accuracy achievable in the use of submodeling in finite-element modeling of the mechanical response of a structural system that includes...

Briefs: Electronics & Computers

A novel high-temperature, high-voltage power electronics capacitor incorporates materials of construction and electrical components that have been initially designed as a segment of...

Briefs: Electronics & Computers

The electromechanical, RF, and charging properties of an "air-gap" capacitive switch enable it to be utilized in high-cycle life testing. Monitoring both high-speed and low-speed switching...

Briefs: Materials
Oxide and Nitride Films for Tunable Capacitors and HEMTs

A report describes research on thin oxide films intended for use as variable-high-permittivity dielectrics in advanced tunable capacitors and on thin nitride films as starting materials for advanced high-electron- mobility transistors (HEMTs). In this research, a custom...

Briefs: Electronics & Computers

A DC-to-DC power converter, nominally rated for a power of 180 W, an input potential of 28 V, an output potential of 270 V, and a maximum operating temperature of 200°C has been...

Briefs: Test & Measurement

Life tests have demonstrated the longevity of an electrostatically actuated capacitive switch of a microelectromechanical systems (MEMS) type suitable for handling radio signals having...

Briefs: Electronics & Computers

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)...

Briefs: Electronics & Computers

Techniques to compensate for the effects of parasitic inductances and capacitances have been developed as part of an effort to improve the performances of low-pass filters in electronic...

Briefs: Electronics & Computers

The Air Force (AF) is evolving from a Cold War-era force with a large, containment- focused infrastructure to a smaller, more responsive and affordable Air and Space Expeditionary Force. In support of this transformation,...