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RF & Microwave Electronics

NASA CubeSats: Pushing the Boundaries of Technology

NASA’s Small Spacecraft Technology Program is on the countdown clock to advance communications and proximity maneuvering capabilities for CubeSats with the Integrated Solar Array and...

Briefs

Test & Measurement

Topology Control in Aerial Multi-Beam Directional Networks

In multi-beam directional networks, nodes are able to simultaneously transmit to all neighbors or receive from all neighbors. This spatial reuse allows for high throughputs, but in dense networks can cause significant interference. Topology control (i.e., selecting a subset of neighbors to...

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RF & Microwave Electronics

NASA Miniaturizes Century-Old Radio Sounder Technology

A century-old technology that scientists use to probe the ionosphere — the important atmospheric layer that can interfere with the transmission of radio waves — is getting smaller.

Application Briefs

Test & Measurement

NeXtRAD SDR Interface

Pentek, Inc.Upper Saddle River, NJ201-818-5900For more info click here NeXtRAD is a dual-band, dual-polarization, multistatic radar system under development at the University of Cape Town (UCT) in collaboration with...

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Aerospace

Cassini Stays in Touch with NASA's Radio Science Subsystem

After almost 20 years in space, NASA's Cassini spacecraft begins the final chapter of its remarkable story of exploration. From now until September, Cassini will undertake a set of...

Briefs

Imaging

Terahertz (THz) Radar: A Solution For Degraded Visibility Environments (DVE)

An accurate view of the physical world is frequently vital. For example, rotary wing aircraft pilots must have knowledge of the terrain in order to safely fly their...

Briefs

Aerospace

Development of an Optically Modulated Scatterer Probe for a Near-Field Measurement System

Near-field radiation patterns are useful in diagnosing antenna array defects, measuring far-field antenna patterns where the far-field is prohibitively...

Application Briefs

Defense

Submarine Radar Technology

Kelvin Hughes Enfield, UK +44 19 9280 5200www.kelvinhughes.com Kelvin Hughes recently announced that it has developed a way to bring all the benefits of its innovative SharpEye™ radar technology to submarines.

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Test & Measurement

Using High Bandwidth Oscilloscopes to Analyze Radar and Electronic Warfare Systems

Whether for multi-channel analysis, or for wider analysis bandwidth in a measurement, high bandwidth oscilloscopes offer an alternative to traditional spectrum...

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RF & Microwave Electronics

EMI Analysis Software Helps Telescope Group Simulate RFI Mitigation

Challenging Einstein’s seminal theory of relativity to the limits, how the very first stars and galaxies formed just after the Big Bang, the study of dark energy and the vast...

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Aerospace

A New Concept for Improving the Performance of Electrically Small Antennas

Using advances in the areas of multi-mode, closely coupled miniaturized radiators and artificially engineered materials, ultra-broadband, highly efficient, electrically...

Articles

RF & Microwave Electronics

Curled RF MEMS Switches For On-Chip Design

Microelectromechanical system (MEMS) switches are active components in most electronic equipment. Radio frequency (RF) MEMS are used in wireless personal communication devices, satellite communication,...

Briefs

Test & Measurement

SIRE: A MIMO Radar for Landmine and IED Detection

Low-frequency ultra-wideband (UWB) radar has garnered attention for the detection of landmines and improvised explosive devices (IEDs) in recent years. The low frequencies used by these radars...

Application Briefs

Electronics & Computers

Satellite System

301-428-5539 http://defense.hughes.com Hughes Network Systems, LLC (Hughes) recently unveiled a new HM Satellite System, engineered around its novel software-definable modem (SDM) technology and scrambled code multiple access...

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RF & Microwave Electronics

Making AESA Radar More Flexible

A modular, building-block approach brings greater design flexibility to Active Electronically Scanned Array (AESA) radar technology, simplifying system integration, and permitting rapid first-line repair with no...

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Test & Measurement

Developing Secondary Surveillance Radar Automated Test Equipment

Unlike primary radars, Secondary Surveillance Radar (SSR) calculates the range and azimuth of a target, such as an aircraft, using a bidirectional communication link to gather...

Application Briefs

Manufacturing & Prototyping

Mobile Networking for Aircraft

Persistent Systems, LLC New York, NY 212-561-5895 www.persistentsystems.com The Wave Relay® 5010 Integration Unit, a Mobile Ad Hock Networking (MANET) product from Persistent Systems, LLC, was recently tested by...

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Aerospace

Unmanned Ground Vehicle Communications Relays

The need for a high-bandwidth communication link to carry multiple video channels from a mobile robot (unmanned ground vehicle, or UGV) back to a control station requires using high-frequency RF...

Application Briefs

Defense

Emergency Locator Transmitter (ELT) Shipsets

McMurdo Group Lanham, MD 240-790-0600 www.mcmurdogroup.com McMurdo Group, a company that specializes in end-to-end search and rescue (SAR) and maritime domain awareness (MDA) solutions, was recently...

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RF & Microwave Electronics

Next-Generation Phased Radar Systems Lead to Hardware Improvements

Meeting the performance needs of the next generation of radar systems that will be deployed by the military is spurring the development of more efficient and sensitive hardware...

Articles

Software

New RF Strategies for Software Radio

Software defined radio system engineers can now exploit new technology to perform digital signal processing much closer to the antenna than ever before. Various strategies include the latest wideband data...

Technology Update

RF & Microwave Electronics

Small, Sensitive Antennas

Researchers create metamaterials by carefully designing and fabricating novel structures to exhibit patterns of electromagnetic properties—specifically, dielectric permittivity and/or magnetic permeability—at the micro-or nano-scale. This special spatial arrangement of elements ensures that the volumetric arrays...

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RF & Microwave Electronics

Enhancing Mission Readiness with Rugged Portable Instruments

To support warfighters in the field, engineers and technicians install, maintain, troubleshoot, and repair a wide range of mission-critical radar and communication systems. These...

Articles

Defense

Airborne Antenna Considerations for C-Band Telemetry Systems

It is fairly well known within the aerospace community that telemetry is moving from the traditional L-band and S-band frequency ranges up to C-band. It is widely understood that the...

Application Briefs

Defense

Software-Designed System Improves Wireless Test Speed and Coverage

As wireless standards become more complex, the number of operational modes for these devices increases exponentially. As progression continues to the latest WiFi standard, new...

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Aerospace

Optimizing DSP Techniques for Antenna Site Software Radio

Many applications can benefit from pushing software radio functions up the mast to the antenna as a viable alternative to traditional rack-mounted receiver systems. New technology offers...

Articles

Aerospace

Advances and Challenges in Developing Radar Applications

Radar is used to detect and/or track target objects and their attributes, such as range, speed, and other information obtained through signals at RF and microwave frequencies. The broad...

Articles

RF & Microwave Electronics

Software Defined Radio Enables Flexible Communications for NASA

Communication is key to just about any endeavor. NASA’s ability to update and modify communication capabilities to reflect the latest upgrades without impacts to mission time or...

Articles

RF & Microwave Electronics

The Basics of Multiple Input Multiple Output (MIMO) Radio Systems

This article introduces the rationale and techniques involved with MIMO (Multiple-Input Multiple-Output)-based communication systems. The communication impairments due to...