MEMs

Tiny UAS Could Be Warfighters’ Eyes in the Sky

The basic small-unit fighting capability of the Army is the squad. One of its weaknesses is broad-area situational awareness, particularly in unfamiliar environments, according to Col. Phil Cheatham, deputy branch chief of the Electronics and Special Developments Branch at the Maneuver Center of Excellence (MCOE), Fort Benning, Georgia. A likely solution? A nano unmanned aerial system (UAS) with reconnaissance capability called the Soldier Borne Sensor (SBS).

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Military Wide Band Amplifier

Lansdale Semiconductor, Inc. (Phoenix, AZ) has announced the continued availability of the ML1590/BGA military wide-band RF amplifier, National Stock Number (NSN) 5962-01-280-2203. The ML1590 is supplied in (8) lead metal cans to Standard Microcircuit Drawing (SMD) 5962-876570 integrated circuits (ICs), originally designed and built by Motorola/Freescale Semiconductor, Inc.

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50 GHz Handheld Combination Analyzer

Keysight Technologies, Inc. (Santa Rosa, CA) has added six millimeter-wave models to its family of FieldFox handheld analyzers. The flagship model is the industry’s first handheld combination analyzer to provide coverage to 50 GHz. Three combination-analyzer models cover 32, 44 or 50 GHz and provide spectrum analysis, vector network analysis, and cable and antenna testing in a rugged, portable unit. The three spectrum analyzer models cover the same frequency range.

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Axial and Radial Seals

Morgan Advanced Materials’ (Windsor, UK) Seals and Bearings business offers quality axial and radial seal components for applications with severe service conditions. Morgan’s components are highly thermally conductive and resist corrosion due to their rugged construction from carbon, graphite, and silicon carbon- based materials. They perform reliably under stress and can be tailored to best fit individual applications.

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31–36 GHz Receiver

Richardson RFPD (Geneva, IL), Inc. announced the availability and full design support capabilities for a new receiver from M/A-COM Technology Solutions. The XR1020-QH is a 31–36 GHz receiver with a noise figure of 3 dB and 14 dB conversion gain. It integrates a low noise amplifier, image reject mixer and LO buffer amplifier within a fully-molded, lead-free, 4-millimeter, 24-lead PQFN package. The image reject mixer eliminates the need for a bandpass filter after the LNA to remove thermal noise at the image frequency. I and Q mixer outputs are provided, and an external 90° hybrid is required to select the desired sideband. The XR1020-QH is suitable for point-to-point radio, SATCOM and military applications.

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720W AC-DC Switching Power Supplies

Acopian (Easton, PA) announced that the 1U Switching Regulated 720W ACDC Power Supply family is now RoHS Compliant and certified to UL Safety Standards UL 60950 (Information Technology Equipment), and UL 508 (Industrial Control Equipment). The power supplies feature single output voltages from 1V-135V, wide-adjust output voltages from 0V-5V to 0V-135V and current capabilities up to 70A. They offer 720W of output power and are available with an optional auxiliary output (to 180 watts). The Acopian power supplies accommodate the universal AC input voltage of 95 to 265 VAC, 49-420 Hz, single phase. They feature active power factor correction (PFC) of 0.99 typical at 115VAC, 60 Hz and full load to ensure operation in challenging AC environments and compliance with EN61000-3-2.

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RF Amplifier System

Empower RF Systems (Inglewood, CA) has begun shipping the Model 2180 RF amplifier system covering 1 to 2.5 GHz and delivering 2 kW CW of broadband output power in a 8U, air-cooled chassis. Features include: user selectable configuration and operation in three different modes - AGC (Automatic Gain Control), ALC (Automatic Level Control) and MGC (Manual Gain Control); modern and multi-faceted Monitoring and Control (M&C) user interfaces, including a Web browser, TCP/IP Ethernet, RS-485 interface and a front panel touchscreen display (optional IEEE-488 GPIB interface available); and enhanced ruggedness using the latest in high voltage RF transistors (GaN).

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12A POL DC-DC Converters

TDK Corporation (National City, CA) has introduced the 12 Ampere TDKLambda iCH series of POL (Point of Load) non-isolated DCDC converters. Accepting a wide range input of 4.5 to 14 VDC, the series can operate from either a 5 VDC or 12 VDC bus. The iCH series can provide output voltages from 0.7 to 8.5V, with efficiencies of up to 97%. A low internal power loss allows the iCH to deliver 12A output current, without forced air cooling, in ambient temperatures in excess of 70 °C.

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AdvancedTCA Chassis

Pixus Technologies (Waterloo, Ontario, Canada) now offers a 15U AdvancedTCA (ATCA) chassis that exceeds 400W/slot cooling capability and meets stringent NEBS requirements. The Pixus chassis leverages the original Kaparel design that used patented Ri- Cool II blowers for 275W/slot of cooling. Today’s 15U unit provides more air evacuation using the next generation of reverse impellar hot-plug cartridges. The new RiCool III blowers feature 185 CFM of airflow per fan with 71mm H20 of static pressure.

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Next Generation FPGAs for Electronic Warfare Systems

Designers of virtually all electronic warfare system applications exploit CPUs and FPGAs, each offering unique strengths and advantages for handling a wide range of tasks. This diversity arises from fundamental differences in the devices. FPGAs consist of hardware logic, registers, memories, adders, multipliers and interfaces connected together by the user to perform a specific function. CPUs consist of ALUs, instruction execution engines, cache memory, dedicated I/O and memory ports all connected in a fixed architecture, whose resources are driven by program execution.

Posted in: Articles, Aerospace, Defense, Architecture, Computer software / hardware, Electronic equipment, Defense industry
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