Keyword: Radio frequency

Briefs: Nanotechnology
Synthesis of fiber-metal laminates is performed using RF plasma spray deposition.
Articles: Sensors/Data Acquisition
Water-sensing smartphone screens, a NASA-developed RF switch, and an ultrasound patch.
Briefs: RF & Microwave Electronics
The sensor could provide a way to detect communication signals over the entire radio frequency from 1 to 100 GHz.
Technology Leaders: Sensors/Data Acquisition
Low-power radio design is enabling new connected IoT products for consumer, commercial, industrial, and medical markets.
Articles: Mechanical & Fluid Systems
A cryptographic ID tag, a high-reliability NASA switch, and a stretchable thermoelectric generator...
Briefs: Communications
Laser Radio Transmitter
This device transmits data via a semiconductor laser, opening the door to ultra-high-speed WiFi.
Briefs: Test & Measurement
Applications include homeland security, vehicle anti-collision systems, telecommunications systems, and industrial instrumentation.
Briefs: Test & Measurement
In some cases, radio frequency signals may be more useful for caregivers than cameras or other methods to collect health and behavioral data.
Briefs: Energy

A new wireless transceiver was developed that boosts radio frequencies into 100-gigahertz territory, which is quadruple the speed of the upcoming 5G, or fifth-generation, wireless communications...

Briefs: RF & Microwave Electronics
Technique Locates Robots and Humans in GPS-Challenged Environments

An algorithm enables localization of humans and robots in areas where GPS is unavailable. The Army needs to be able to localize agents operating in physically complex, unknown, and infrastructure-poor environments. This capability is critical to help find dismounted soldiers and...

Briefs: Electronics & Computers

A current-steering digital-to-analog converter (DAC) was developed that achieves improved switching times (up to 75% faster) in high-speed (gigahertz), high-resolution (8-14...

Briefs: Imaging

Innovators at NASA’s Glenn Research Center have developed a hybrid telescope antenna system — Teletenna — to deliver high-data-rate communication over great distances. Teletenna has...

Briefs: Data Acquisition

Today, more than 8 billion devices are connected around the world, including medical devices, wearables, vehicles, and smart household and city technologies. Those devices are vulnerable to...

Facility Focus: Medical

The Air Force Research Laboratory (AFRL), headquartered at Wright-Patterson Air Force Base in Ohio, was formed in October 1997 through the consolidation of four former Air Force laboratories and the Air Force...

Briefs: Aerospace

NASA's Langley Research Center has developed a SansEC Sensor technology for use with aerospace fuel delivery systems. The SansEC technology is a...

Briefs: Medical

Engineers at the University of California San Diego have developed a miniature, ultra-low power injectable biosensor that could be used for continuous, long-term...

Articles: Lighting

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Aerospace

For decades, mass spectrometers have offered a relatively fast and highly sensitive way to analyze and detect chemical compounds. But their bulky size has been a hindrance, limiting the in-field potential of the...

Briefs: Energy
High-Power Solid-State Power Amplifier System

NASA Marshall Space Flight Center (MSFC) has developed a High-Power Solid-State Power Amplifier System that combines 1-KW modules (16 amps total) to generate up to 16KW of radio frequency (RF) power from 230 MHz. The NASA device is a first step toward increasing the power of solid-state power amp...

5 Ws: Sensors/Data Acquisition
Who

Manufacturers of smaller and smarter computer chips for consumer electronics such as smartphones and tablets, and 3D chips for brain-inspired computing applications.

Briefs: Imaging
MorphoHawk Mathematic Morphology Software for Image and Data Analysis

Computers and automated systems have accelerated productivity and improved quality and reliability for nearly everything, and are destined to take on increasing roles as time moves on. One major limiting factor for automated systems is their inability to categorize and...

Facility Focus: Data Acquisition

The explosion of the first Soviet atomic bomb in August 1949, followed by the Soviet development of bombers that could traverse the Arctic Circle, created a...

Briefs: Communications
Zero-Power Radio Receiver

There are several different types of wireless radio frequency identification (RFID) tags that are truly zero-power radios. Currently, most unpowered wireless RFID tags only have a range of a few meters. There are longrange, low-powered tags that draw energy either from a battery or some other form of localized power. A...

Briefs: Imaging

WiFi signals are everywhere. Unmanned aerial vehicles (UAVs, or drones) are expected to become a larger part of everyday life. A new methodology was developed for high-resolution,...

Articles: Software

As new concepts need to be investigated, and a wide range of operating conditions has to be considered, the design of new products and processes must push the limits of...

Briefs: Communications

Many industrial and commercial plants, government and private research facilities, and industrial facilities perform potentially dangerous processes. Automated warning and alarm systems alert personnel to...

Briefs: Communications
Wideband Retroreflector

There are many known methods of retransmitting radio wave signals intra-building and inter-building, as well as ground-to-aircraft or ground-to-satellite. Some techniques modulate the reflection coefficient of an antenna. Prior art has used frequency multiplication or field effect transistor (FET) mixing to modulate the...

Articles: Photonics/Optics

Achip-scale optical device, developed by a team from the University of Sydney’s Australian Institute for Nanoscale Science and Technology (AINST), achieves radio frequency signal...

Briefs: Electronics & Computers

Tufts University engineers have invented a chip-sized, high-speed modulator that operates at terahertz (THz) frequencies at room temperature and at low voltages without consuming DC...