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Traveling-Wave Wide-Band Microstrip Antennas

Microstrip antennas that can be made to perform well over relatively wide frequency ranges but are mechanically and electrically simpler than prior such antennas have been invented. These antennas are designed to support traveling waves, in contradistinction to being designed traditionally to support standing waves. The exploitation of traveling waves to enable wideband operation is not new in itself; the novelty of the present invention lies in the electrical and mechanical antenna configuration for supporting traveling waves.

Posted in: Briefs, Physical Sciences, Antennas, Product development
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Spintronic Effects in Semiconductor Nanostructures

Progress has been made in calculation of spintronic effects in semiconductor nanostructures. The calculations contribute to the body of theoretical knowledge complementing recent experimental advances in generating, transporting, and detecting coherent spin-polarized populations of electron and nuclear spins in semiconductors. The experimental advances have demonstrated that spintronic effects could be harnessed as the basis of novel nanoscale devices. Theoretical advances are needed to understand and extend the experimental advances by enabling inference of previously unknown phenomena from results of experiments and incorporation of these phenomena into realistic models of operation and performance of spintronic devices, including devices that could be used in quantum computation.

Posted in: Briefs, Physical Sciences, Nanotechnology, Semiconductors
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Transceivers for Multi-Gigabyte Systems (Altera)

Altera Corp. (San Jose, CA) offers the high- density Stratix II GX family designed to provide up to 20 low-power transceivers operating between 600 Mbps and 6.375 Gbps with 127 Gbps of aggregate serial-link connectivity. The Stratix II GX FPGAs can be used to design and manufacture multi-gigabit interconnected sys- tems. Additionally, with the release of the EP2SGX30 and EP2SGX60 devices, Altera has completed the rollout of all Stratix II GX family members.

Posted in: Products, Products, Electronics & Computers
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Multi-Cores: The Gateway to Next-Gen SBCs and Blades

With the introduction of Intel Core microarchitecture into embedded systems, history could very well repeat itself. The company that invented the microprocessor in 1971 and created the very first micro-controller in 1976 is about to revolutionize the embedded space once again. By bringing the power of parallel processing to embedded developers in an open-standards-based building block architecture, Intel is hoping to break down the cost barriers while taking embedded systems performance to new levels that once were reserved only for expensive computer systems specifically designed for symmetric multiprocessing (SMP), while also accomplishing unrivaled levels of efficiency.

Posted in: Articles, Articles, Electronics & Computers, Architecture, Embedded software
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How to Design an Embedded RDBMS Search

As the cost of micro-disk and NAND Flash continue to drop, devices are storing more and more data. It is common now for a person's MP3 player to have more storage than their laptop. But this increase in storage capacity has not been matched with advances in the user interface. Typically, users still wrestle with a folder-based interface to find the data they want, searching by a few vendor-defined categories such as artist, album, and genre. But a new class of embedded database manage- ment systems (DBMS) is emerging to allow end users to search the way people think, rather than in this stat- ic manner. With a RAM footprint ranging from a few tens to a few hundred kilobytes, these products enable developers to deliver this sophisti- cated search on mobile devices. So how do they work? How do you write an embedded application to use a relational DBMS (RDBMS)? While there are a few kinds of DBMS, the relational model has tri- umphed over all the others, largely because it abstracts the data struc- tures so that applications don't have to know them. A relational database management system offers a standard, high-level query language that allows access to data by content, not by pointer or location and offset.

Posted in: Application Briefs, Application Briefs, Electronics & Computers, Architecture, Human machine interface (HMI), Data management
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Fanless Single Board Computer ( ADLINK Technology)

The NuPRO-796 from ADLINK Technology (Irvine, CA) is a half-size board computer featuring an AMD GeodeTM GX 533 processor. Fanless, the device has a 1.1 W CPU power consumption, and includes an on-board 128 MB memory on a single SODIMM slot, one UltraATA 66 IDE connector, and four Serial ATA connectors with RAID support. With several display options, it supports VGA/CRT monitors (1,600 ×1,200, 16 bbp at 85 Hz or 1,280 ×1,024, 24 bpp at 85 Hz), TFT LCDs, (1,280 ×1,024 bpp), and LVDS. Key I/O interfaces include an ACPI-compliant 10/1000BASE-T LAN port, four USB 1.1 ports (two USB ports on the faceplate, two by the pin header), and integrated audio controllers with an AC'97 interface. Operating temperature ranges from 0 to 60°C (storage temperature is -20 to 80°C).

Posted in: Products, Products, Electronics & Computers
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Beamforming System Eases Crowded Wireless Spectrum

Beamforming is critical to enable initiatives by the U.S. Federal Communications Commission (FCC) to increase spectrum capacity and provide additional cellular service and coverage through satellite and terrestrial systems. The key technology for this application is beamforming, which electronically steers data streams to and from a satellite via a combination of an array of antennas on the satellite and very sophisticated, ground-based computational engines.

Posted in: Articles, Articles, Electronics & Computers, Antennas, Telecommunications, Waveguides, Satellites
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SOA in Practice: Model-Driven Repositories Fill the Gap Between Concept and Implementation

In the past, network-based applications were pretty simple. A networked server ran a monolithic application that users accessed via a basic GUI (graphical user interface). Today, organizations struggle to develop feature-rich, network-based applications while also facing business pressure to minimize timescales, maximize quality, and work with legacy systems hosted on different platforms.

Posted in: Articles, Articles, Electronics & Computers, Design processes, Architecture, Human machine interface (HMI)
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PCI, PCI-X, and PMC Boards (VMETRO)

VMETRO (Houston, TX) has released the VirtexTM-5 LX FPGA-based PCI/PCI-X and PMC board-level products. Designed for high-performance general-logic applica- tions, the Virtex-5 is the second generation of Xilinx FPGA to use the ASMBLTM (Advanced Silicon Modular Block) column- based architecture that enables Xilinx to fabricate four FPGA platforms with varying feature mixes suitable to different appli- cation areas.

Posted in: Products, Products, Electronics & Computers
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Graphics Display Processor (GE Fanuc Embedded Systems)

GE Fanuc Embedded Systems (Albuquerque, NM) offers the 3U VPX MAGIC1 Rugged Display Processor, an integrated sub- system consisting of the 2.0 GHz Intel Core Duo processor-based SBC340 sin- gle board computer and GRA110 graphics processor. The MAGIC1 rugged subsystem lets system designers develop and deploy more sophisticat- ed display applications than has previ- ously been possible. The graphics dis- play processor supports VAPS, GL Studio, and iData display software, and targets embedded training, digital mapping, and vehicle display applications. The MAGIC1 is the first of several planned system-level 3U VPX platforms from the company, each designed to serve specific functional needs.

Posted in: Products, Products, Electronics & Computers
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