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50th Anniversary Issue Radar’s Range Extends Through Technology Radar concepts date back to some of electronics’ legendary figures, such as James Clerk Maxwell and Heinrich Hertz. — Nancy Friedrich 50th Anniversary Issue MUOS Heralds Future Of Military Satcom Today, nearly every person in America relies on satellites for one function or another. — Mark Pasquale 50th Anniversary Issue Cobra Judy Replacement: The Legacy Continues Cobra Judy was developed in the 1970s to provide the government with long-loiter, ballistic-missile data-collection capability in support of international-treaty monitoring activities. — October 2011 Defense-Minded Designers Convene at 48th AOC This annual event draws top suppliers of components, systems, software, and test solutions for electronic defense, plus thousands of attendees working on military designs. — Jack Browne September 2011 Advanced Radios Strengthen Battlefield Communications Battlefield radios are essential tools for tactical communications, but many older radios are simply wearing out. — Janine Love September 2011 Choosing Military Or COTS Components? Economic conditions can assert influence over electronic design strategies. At one time, the US government steered clear of commercial components or software in electronic defense systems. — Jack Browne September 2011 Military Electronics Still Fuels Industry Military applications have consumed RF/microwave components for as long as electronic equipment has been deployed on the battlefield. — Jack Browne June 2011 Airborne Radar Culls Maximum Performance From Its Parts Airborne radar has always been complex, given its weight restrictions, performance goals, and need for ruggedness and reliability. From today’s cutting-edge military aircraft to the smallest unmanned aerial systems (UASs), these radar systems also have faced ongoing miniaturization. As a result, airborne-radar systems can fit more functionality into tighter spaces. At the same time, they have maintained and even improved their broadband performance levels. In the... — Nancy Friedrich June 2011 Tracking The Evolution Of Radar Radar has as rich a history as any application area in this industry, dating to the early days of the last century. As with many early electronic systems, it was exclusively based on vacuum tubes in its early days, eventually making use of solid-state amplification as transistors developed as a viable alternative. In tracing the development of early radar systems into many different applications, the engineering ideas that attempted to overcome... — Jack Browne April 2011 Satellite Network Steps Up Warfighter Communications WITH A MULTITUDE OF WARFIGHTERS in what seems to be a never-ending array of locations, making sure they stay in contact has become more difficult than ever. Often, this situation is further challenged by rough terrain, which blocks line-of-sight (LOS) tactical radios. As a solution to this problem, Iridium Communications, Inc.’s Distributed Tactical Communications System (DTCS) leverages a global network ... — March 2011 GaN Devices Power 0.5-To-2.5-GHz Amp BROADBAND POWER of 100 W or more usually implies vacuumelectronics circuitry surrounding one or more traveling-wave tubes. But the model 8767 broadband Amplifier Technology Ltd. is a 100-W power amplifi er designed for applications from 500 to 2500 MHz, and based on solid-state gallium-nitride (GaN) transistors. It extracts all that output power from a package that is only 261 x 131 x 31 mm ... — Jack Browne March 2011 Space Fence Promises To Pinpoint Smaller Debris An increasing number of services and applications are relying on space-based technology. Examples include navigation, satellite broadcasting, and even medical research. Yet such services could be easily interrupted by collisions with space debris. To gain time to react to occurrences that might impact the nation’s space assets and missions, the US Air Force has awarded contracts to both Lockheed Martin and Raytheon for the next phase of Space Fence. The... — February 2011 JTRS Network Launches From Helicopter To Arm US Forces with simultaneous voice, data, and video communications, the airborne & maritime/fixed Station Joint Tactical radio System (AMF JTRS) forms a mobile, ad-hoc network. This secure (NSA Type 1), software-programmable, multiband/ multimode network is expected to be integrated into airborne, shipboard, and fixed-station platforms. Recently, for example, a Joint Tactical Radio Internet-Protocol (IP) communications network... — January 2011 SBIRS Geosynchronous Satellite Passes Milestone Test For example, the Space Based Infrared System (SBIRS) team—which is led by the US Air Force and Lockheed Martin—just completed the Final Integrated System Test (FIST) of the first geosynchronous (GEO-1) satellite. This program milestone verifies the spacecraft’s performance and functionality in preparation for delivery to the launch site. The goal of the SBIRS mission is to provide global, persistent, infrared surveillance capabilities to the US. The launch... — January 2011 Less Light Provides More Information WITH NEW THEORY and experimental techniques, optical communications and imaging systems could approach the limits of informationencoding efficiency. Reaching that level is the goal of Raytheon BBN Technologies, which has been awarded $2.1 million in funding by the Defense Advanced Research Projects Agency (DARPA) for two projects under the Information in a Photon (InPho) program. It plans to develop new sources of quantum-entangled light as well as novel... — December 2010 TriQuint Welcomes AFRL Contract TRIQUINT SEMICONDUCTOR has been awarded a Defense Production Act Title III gallium-nitride (GaN) manufacturing development contract by the US Air Force Research Laboratory (AFRL). TriQuint was awarded the contract based on its success and experience developing GaN technologies and products. The goal of the contract is to increase yield, lower costs, and improve time-to-market cycles for defense and commercial GaN integrated circuits (ICs). The contract is... — Dawn Hightower November 2010 Next Decade Will See Number Of New EO Satellites Double PARIS, FRANCE—Defense and security requirements will continue to drive the commercial Earth-observation (EO) satellite data market for the next 10 years. In addition, revenue growth will be fueled by the growing commercialization of the industry and the data needs of emerging EO nations and private enterprise, concludes Euroconsult’s report, “Satellite-Based Earth Observation, Market Prospects to 2019.” In the next decade, 230 EO satellites... — Dawn Hightower September 2010 Defense Electronics Supplement HAAD Passes Flight Test Hawaii, a popular vacation destination, is also a proving grounds for the latest defenserelated technologies. This past June, the Terminal High Altitude Area Defense (THAAD) radar was put through its paces at Hawaii’s Pacifi c Missile Range Facility in a test conducted by the Missile Defense Agency (MDA) and Lockheed Martin, the platform’s prime contractor. The THAAD radar, developed by ... — Jack Browne September 2010 Defense Electronics Supplement Raytheon And Boeing JAGM Team Hit Target During a recent test at the White Sands Missile Range in New Mexico, teams from Raytheon Co and Boeing Company completed the fi rst of three government-sponsored firings of the Joint Air-to-Ground Missile (JAGM) system. Using laser guidance, the JAGM hit an 8 x 8 ft. target from 10 miles. JAGM features a tri-mode seeker with laser; an infrared imaging... — Jack Browne September 2010 Defense Electronics Supplement Fiber Laser Takes Out Airborne Targets Raytheon Co. and a United States Navy team used a combined-beam fi ber laser weapon system to shoot down four unmanned aerial vehicles (UAVs) in fl ight during an over-the-water engagement. The UAVs were engaged and destroyed using the US Navy’s Laser Weapon System (LaWS) guided by Raytheon’s Phalanx Close-in Weapon System sensor suite. LaWS is made up of six industrial-grade high-power lasers that simultaneously focus a... — Jack Browne  prev. page
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