Electronics & Software

RF & Microwave Electronics

Briefs : RF & Microwave Electronics
RF System MATLAB Model Simulation Using a Variety of Data Sources

During the development of the Soil Moisture Active-Passive (SMAP) High-Power Amplifier (HPA), a power glitch was observed with the characteristic of producing small 0.1-0.3 dB jumps in power across temperature. In order to troubleshoot this glitch behavior, a nonlinear model that...

News : Aerospace
Flexible Skin Traps Radar Waves and Cloaks Objects

Iowa State University engineers developed a new flexible, stretchable, and tunable metamaterial skin that uses rows of small, liquid-metal devices to cloak an object from the sharp eyes of radar. By stretching and flexing the polymer meta-skin, it can be tuned to reduce the reflection of a wide...

News : Imaging
Micrchip Enables Palm-Sized Radar Camera

Scientists at Nanyang Technological University, Singapore (NTU Singapore) have developed a chip that allows new radar cameras to fit into the palm of your hand.

News : Test & Measurement
NASA Flight-Tests Sample Return Capsule

A prototype capsule that one day will return science experiments to Earth was tested by releasing it from a high-altitude balloon. Technology like this capsule could one day return biological samples and other small payloads from space in a relatively short time. The balloon was launched to an altitude of...

News : Test & Measurement
Crash Test Helps Improve Emergency Response

NASA’s Langley Research Center hoisted a Cessna 172 aircraft 100 feet into the air by cables and released it. The plane plummeted onto a slab of dirt in a violent but controlled experiment that will help NASA improve aviation emergency response times. The test is part of a push to bolster the...

Briefs : RF & Microwave Electronics
Microwave Radar Sensor Module

Existing implementations of continuous wave (CW) radar are not packaged appropriately for use as part of a heartbeat detection system for disaster search and rescue. They use separately packaged microwave components and laboratory test equipment, and require substantial skill to operate properly, including setup,...

Briefs : Electronics & Computers
E-Textile Interconnect

E-textiles have shown great promise within the microwave and antenna community to provide a low-mass, highly conformal option that integrates extremely well with fabric-based microwave devices and antenna platforms, but often not as well with more conventional devices.

News : Defense
Army Equips Stryker Unit With New Communications Technology

The Army's Stryker vehicle, designed to quickly move soldiers into a combat zone, is swift and mobile. Now its communications equipment will be, too.

Products : Test & Measurement
Vector Signal Analyzer

National Instruments (Austin, TX) introduced the PXIe-5668R 26.5-GHz microwave vector signal analyzer (VSA) and a 20-GHz continuous wave signal generator. The VSA delivers low noise floor, high linearity, and low phase noise, and delivers up to 765 MHz of instantaneous bandwidth. Engineers can analyze wide-bandwidth...

Articles : Communications
E-Textile Antenna Tuning Stitches

A variety of antenna tuning techniques exist for conventionally constructed antenna structures, such that when an antenna is converted from a design to an actual fabricated structure, slight adjustments can be made to the fabricated structure to match the performance expected from the design. For microstrip...

Briefs : Physical Sciences
A Continuous-Flow, Microfluidic, Microwave-Assisted Chemical Reactor

In industrial synthetic chemistry laboratories, reactions are generally carried out using batch-mode methodologies, stepwise reactions, and purifications to generate a final product. Each step has an associated yield of both the reaction itself and of the final purification...

News : RF & Microwave Electronics
Air Traffic Lab Answers Questions About Future Flying

The holiday season is upon us and that means crowded airports and delayed flights. Researchers at NASA's Langley Research Center are working to change that. They are conducting studies to help reshape the future of American air travel in a brand-new Air Traffic Operations Laboratory (ATOL)....

News : Nanotechnology
Foldable Material Can Support Many Times its Weight

Researchers at Drexel University and Dalian University of Technology in China have chemically engineered a new, electrically conductive nanomaterial that is flexible enough to fold, but strong enough to support many times its own weight. They believe it can be used to improve electrical energy...

News : Test & Measurement
Webb Telescope’s Heart Survives Deep-Freeze Test

After 116 days of being subjected to extremely frigid temperatures like those in space, the heart of the James Webb Space Telescope, the Integrated Science Instrument Module (ISIM) and its sensitive instruments, emerged unscathed from the thermal vacuum chamber at NASA’s Goddard Space Flight...

News : Materials
Sensor Uses Radio Waves to Detect Subtle Pressure Changes

Stanford engineers have invented a wireless pressure sensor that has already been used to measure brain pressure in lab mice with brain injuries. The underlying technology has such broad potential that it could one day be used to create skin-like materials that can sense pressure, leading...

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