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LTE vs. WiMAX – A Test Perspective

June 29, 2010 4:43 pm | Comments

By Graham Celine, Azimuth Systems The marketing battle between WiMAX and LTE is raging in an effort to declare which is the best solution, and vendors and service providers are racing to put stakes in the ground to claim the first or most predominant network delivering wireline speeds. However, the true challenge still lurks in the background and has yet to raise its head: which technology will work better, which will provide more throughput, which will offer better range and which will deliver more flexible mobility? The ability to put each of these technologies through their paces and comprehensively test and benchmark the performance of the network is pivotal to the success of either technology’s rollout.

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Highest Efficiency Solar Panels to Date Feature New BOOST™ Cell Technology

June 17, 2010 11:47 am | Comments

Evergreen Solar, Inc., a manufacturer of String Ribbon™ solar panels with its proprietary silicon wafer technology, recently unveiled its upcoming line of higher efficiency solar panels featuring its newly developed BOOST™ Cell Technology, at Intersolar 2010 in Munich, Germany.   The new ES-D and ES-E series of panels for residential and commercial markets feature Evergreen’s new Boost cell technology that uses micro wires instead of conventional bus-bars to reduce cell shading, improve current collection and ultimately increase the overall panel efficiency.

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Siemens to Provide HVDC Link for German Offshore Wind Farms

June 17, 2010 10:05 am | Comments

Siemens Energy and Prysmian Powerlink will connect two North Sea offshore wind farms to the German grid using a high voltage direct current (HVDC) link for transpower. The order awarded to the BorWin2 consortium is worth more than €500 millio. The Veja Mate and Global Tech 1 offshore wind farms, which will have a combined power generating capacity of 800 MW, will be connected to the grid via a submarine cable link carrying HVDC.

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National Semiconductor Reaches Deals with GESolar & QC Solar

June 17, 2010 10:03 am | Comments

National Semiconductor Corp. recently announced that it has reached new deals related to its SolarMagic technology with Green Energy Solar (GESolar) and QC Solar. SolarMagic monitors and maximizes the energy harvest of each individual PV panel through a combination of advanced algorithms and leading-edge mixed-signal technology.

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After Record-Breaking 2009, US Wind Markets Face a Growth-Constrained 2010

June 17, 2010 10:03 am | Comments

Following a record-breaking year of capacity additions in 2009 - with 9.8 GW of wind projects installed - the US wind market finds itself confronting a growth-constrained 2010 and a near-term market landscape wrought with increased competition, according to a new market study, US Wind Power Markets and Strategies: 2010-2025 from IHS Emerging Energy Research.

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EPA Honors Three Universities for Significant Energy Savings

June 17, 2010 10:03 am | Comments

WASHINGTON- The U.S. Environmental Protection Agency (EPA) is recognizing three universities with the Combined Heat and Power (CHP) awards for generating power and thermal energy while saving energy, lowering greenhouse gas emissions and decreasing air pollution, which can reduce impacts on the public’s health.

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Substantial Energy Efficiency Provisions in Lugar Energy Bill a ‘Solid Foundation,’ says Alliance

June 17, 2010 10:03 am | Comments

Washington, D.C., -- A new energy bill introduced by Sen. Richard Lugar (R-Ind) wisely uses energy efficiency as the core of its provisions, the Alliance to Save Energy said today. The Lugar Practical Energy and Climate Plan focuses on money-saving efficiency policies designed to create long-term energy savings for cars and trucks, new buildings and appliances, existing homes and commercial buildings and industry.

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Company Reaches Milestone by Shipping Enough Product for 15,000 Megawatts of Wind Power

June 17, 2010 10:03 am | Comments

DEVENS, Mass.,(BUSINESS WIRE) -- American Superconductor Corporation, a global power technologies company, announces in conjunction with Global Wind Day 2010 that it has achieved a significant milestone by supporting the production of more than 15,000 megawatts (MW) of wind power worldwide with its proprietary power electronic solutions.

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GPS Based Timing and Synchronization Solutions for WiMAX

June 16, 2010 4:40 pm | Comments

Ken Hartman, Connor-Winfield With the recent surge in popularity of WiMax wireless broadband solutions for home and business, the best and brightest WiMax equipment providers are busy investigating and implementing the newest technologies available for their next generation products.

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WiMAX and the Effects of Multipath

June 14, 2010 1:05 pm | Comments

By Ray Chadwick, Berkeley Varitronics Systems, Inc. WiMAX signals suffer from the effects of multipath and exhibit broadband fading characteristics that are very apparent in the spectrum of the received WiMAX signal (see Figure 1). It’s not a trick; OFDM modulation does not eliminate fading and is not always received with a flat spectrum.

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WiMAX and LTE: Closer than You Think

May 19, 2010 11:04 am | by Joe Cozzarelli, Senior Director Broadband RF Products and Glenn Eswein, Director Of Product Marketing, Broadband RF Business, ANADIGICS | Comments

After three years of deliberation, the IEEE802.16m air interface definition will be ready for prime time in the next few months. This critical step toward creating true 4G cellular technology based on WiMAX is important enough to earn compliant products a new name: WiMAX 2. Further proof came last month, when an impressive subset of the WiMAX community created the WiMAX 2 Collaboration Initiative to "improve the economics of mobile broadband" and "to create a better value chain for service providers.

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Why Do Executives Need to Know About Telecom Expense Management?

May 5, 2010 10:36 am | Comments

By Kevin Donoghue, President of Telesoft What is Telecom Expense Management? Getting wireless costs under control is becoming an ever-increasing concern for business executives in the midst of our struggling economy. Now more than ever, business use of telecom services is continually increasing, often resulting in over spending and overbilling due to inefficient processes.

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Solutions for Nonlinear Characterization of High-Power Amplifiers

April 22, 2010 5:20 am | Comments

By Keith Anderson, Agilent Technologies click to enlarge Figure 1. NVNA block diagram. High-power RF amplifiers are used in telecommunications, biomedical, and military systems. With output power levels ranging up to 1kW, these amplifiers are typically designed to operate near or into compression in order to provide the maximum output power possible.

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The Emergence of JESD204A in Data Converters and Low Power FPGAs in Wireless Infrastructure Equipment

April 14, 2010 12:12 pm | Comments

The increasing data throughput demands on base stations have led to increased radio unit component cost and power, with associated printed circuit board and interface complexities, as well as heightened signal integrity concerns.

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LTE is Coming – Are We Ready this Time?

April 12, 2010 7:33 am | Comments

Nancy Maas Editor-in-Chief The 2010 Mobile World Congress, produced by the GSMA organization, will open on February 15th in Barcelona, Spain. Those who are fortunate enough to attend this event will be able to witness first hand what the future holds for the mobile broadband industry.

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