Electronics & Computers

Bringing RF into the Embedded World: It's Time

Embedded systems have been almost entirely digital throughout their long history, while RF and microwave technologies were separate subsystems with no effective interface between the two. For many reasons, this “RF/digital divide” should finally be connected.

Posted in: Articles, Aerospace, Defense, Board-Level Electronics, Computers, Electronic Components, Electronics, Electronics & Computers, RF & Microwave Electronics
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Maintaining Enterprise Resiliency Via Kaleidoscopic Adaption and Transformation of Software Services (MEERKATS)

This research investigates a new vision for increasing the resilience of computing clouds by elevating continuous change, evolution, and misinformation as first-rate design principles of the cloud's infrastructure. The work is motivated by the fact that today's clouds are very static, uniform, and predictable, allowing attackers who identify a vulnerability in one of the services or infrastructure components to spread their effect to other, mission-critical services. The goal is to integrate into clouds a new level of unpredictability for both their services and data so as to both impede an adversary's ability to achieve an initial system compromise and, if a compromise occurs, to detect, disrupt, and/or otherwise impede their ability to exploit this success.

Posted in: Briefs, Aerospace, Data Acquisition, Defense, Computers, Electronic Components, Electronics & Computers, Software
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New Products: September 2018 Aerospace & Defense Technology

Pin Fin Heat Sinks

Advanced Thermal Solutions, Inc. (ATS) (Norwood, MA) has a family of Pin Fin heat sinks designed as cost-effective solutions for systems with adequate airflow. The high aspect ratio design enables ATS Pin Fin heat sinks to provide low thermal resistance from base to fins in systems where the airflow measures 200-plus LFM (linear feet per minute). The cross-cut design also allows the Pin Fin heat sinks to be effective in systems where airflow is ambiguous.

Posted in: Products, Aeronautics, Aerospace, Aviation, Data Acquisition, Thermal Management, RF & Microwave Electronics, Data Acquisition, Detectors, Sensors, Software, Instrumentation, Measuring Instruments, Monitoring, Test & Measurement
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High-Performance Computing for the Next-Generation Combat Vehicle

The development of the Next-Generation Combat Vehicle (NGCV) will require technological advancements in many areas, including lethality, protection, autonomy, human–agent teaming, and electromagnetic capabilities. What ties all of these future capabilities together is the need for vast computational resources to support the artificial intelligence (AI) implicit in bringing these advancements to the battlefield. The operating environment of the NGCV will be such that communications will be severely limited, if available at all; systems will be under constant cyber-attack; and adversarial AI may be actively attempting to deceive all sensors — all occurring under severe size, weight, power, and time-available constraints. These factors, and more, are the motivation for developing a strategy of mobile High-Performance Computing (HPC) for the NGCV.

Posted in: Articles, Aerospace, Automotive, Communications, Computers, Video, RF & Microwave Electronics, Data Acquisition, Sensors
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Merging Antenna and Electronics Boosts Energy and Spectrum Efficiency

By integrating the design of antennas and electronics, researchers from the Georgia Institute of Technology have boosted the energy and spectrum efficiency for a new class of millimeter-wave transmitters, allowing improved modulation and reduced generation of waste heat.

Posted in: Articles, Aerospace, Electronics, Electronics & Computers, Energy, Energy Efficiency, Smart Grid, Antennas, RF & Microwave Electronics, Semiconductors & ICs
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Integrated Magneto-Optical Devices for On-Chip Photonic Systems

The magneto-optical (MO) oxide layer consists of (Bi,Y)3Fe5O12 or BiYIG, bismuth garnet. This material was selected because it has a better figure of merit than the CeYIG previously used, especially at lower wavelengths (1310 nm vs. 1550 nm). A top-down deposition process was developed in which BiYIG/YIG stacks are grown on the Si waveguide with YIG on top. The stack is annealed at 800°C/5 min to crystallize both layers, with the YIG templating the BiYIG leading to garnet phases rather than other oxides, and the BiYIG is directly on the Si waveguide. Initial attempts led to a film with Bi oxide phases, because the Bi was in excess and could not escape during the anneal as occurs in Si/YIG/BiYIG stacks. Hence the composition was adjusted to include slightly more Fe, which yielded films with only garnet peaks.

Posted in: Briefs, Aeronautics, Aerospace, Aviation, Electronic Components, Electronics, Electronics & Computers, Manufacturing & Prototyping, Materials, Optical Components, Optics, Photonics, Semiconductors & ICs
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Low Power Optical Phase Array Using Graphene on Silicon Photonics

Despite enormous advances in integrated photonics over the last decade, an efficient integrated phase delay remains to be demonstrated. This problem is fundamental – most monolithic thin film deposition relies on centro symmetric materials (such as silicon, silicon dioxide, silicon nitride), which by definition do not have an electro-optic effect. Such materials have been shown to be excellent transparent materials, however they are either optically passive, or rely on very small plasma dispersion effect or power-hungry thermo-optic effect for tunability. These phase change materials have losses associated due to heating or carrier injection in the waveguides. This research shows that graphene can be used to provide electro-optic properties to traditionally passive optical materials.

Posted in: Briefs, Aerospace, Electronic Components, Electronics, Electronics & Computers, Materials, Optical Components, Optics, Photonics
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New Products: August 2018 Aerospace & Defense Technology

Barometric Pressure Sensor

Bosch Sensortec (Reutlingen, Germany) has introduced a new high performance barometric pressure MEMS sensor, the BMP388. The BMP388 delivers outstanding altitude stabilization in drones, where accurate measurement of barometric pressure provides the essential altitude data for improving flight stability and landing accuracy. The new barometric pressure sensor is part of Bosch Sensortec's comprehensive sensor solution for drones, which includes the BMI088 Inertial Measurement Unit (IMU) for accurate steering and the BMM150 geomagnetic sensor for the provision of heading data.

Posted in: Products, Data Acquisition, Board-Level Electronics, Computers, Electronic Components, Electronics, Electronics & Computers, PCs/Portable Computers, Power Management, Power Supplies, Cameras, Imaging, Mechanical Components, Data Acquisition, Sensors
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Using Thermoplastics in Aerospace Applications

In August 2017, Qantas Airlines laid down the challenge to both Boeing and Airbus to offer an aircraft that can cross one of aviation's “last frontiers.” That “last frontier” was an aircraft capable of flying an economical passenger load non-stop for over 20 hours. This would allow Qantas to offer direct service from Sydney to London or New York. Weight reduction through the use of thermoplastics and other technologies would be the key to any chance of success in this endeavor.

Posted in: Articles, Aeronautics, Aerospace, Aviation, Thermal Management, Manufacturing & Prototyping, Composites, Materials, Metals, Plastics, Data Acquisition, Sensors
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Using Turbine Flow Meters for Aerospace Test and Measurement Applications

Turbine flow meters have long been a preferred technology for obtaining precise measurements of fluid flow in the aerospace industry. In addition to their high accuracy, they are recognized for exceptional turndown, repeatability and speed of response.

Posted in: Articles, Aerospace, Thermal Management, Fastening, Fluid Handling, Joining & Assembly, Machinery, Mechanical Components, Data Acquisition, Sensors, Instrumentation, Measuring Instruments, Test & Measurement
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