Keyword: Radio frequency

Articles: Sensors/Data Acquisition
Some of the hardest to detect cyber-attacks are wireless, including man-in-the-middle attacks and rogue access points.
Briefs: Robotics, Automation & Control

Researchers have developed a robot that uses radio waves, which can pass through walls, to sense occluded objects. The robot, called RF-Grasp, combines this powerful sensing with more traditional computer vision...

Briefs: RF & Microwave Electronics

Inside every cellphone lies a tiny mechanical heart, beating several billion times a second. These micromechanical resonators play an...

Briefs: RF & Microwave Electronics
This robotic arm fuses data from a camera and antenna to locate and retrieve items buried under piles and completely out of view.
Briefs: Imaging
This method could help firefighters find victims inside buildings and could track hypersonic objects such as missiles and space debris.
Briefs: Energy
Synthesis of fiber-metal laminates is performed using RF plasma spray deposition.
Articles: Manufacturing & Prototyping
Water-sensing smartphone screens, a NASA-developed RF switch, and an ultrasound patch.
Technology Leaders: Electronics & Computers
AI will only reach its full potential when it can be fed with a constant stream of data from a plentitude of diverse sources.
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: Semiconductors & ICs
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: Electronics & Computers
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: Robotics, Automation & Control
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: Aerospace

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: RF & Microwave Electronics

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: Aerospace

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: RF & Microwave Electronics

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

Briefs: Sensors/Data Acquisition

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...

Briefs: Test & Measurement

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...

Articles: Photonics/Optics

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 innovation.

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: Electronics & Computers
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: Data Acquisition
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: Sensors/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...