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High Temperature MLVs and Low Capacitance MLVs Improve Auto Designs and Reliability

December 14, 2009 11:47 am | Articles | Comments

With recent technical advancements, MLVs can now be used throughout the growing number of modules and interfaces in under hood automotive applications. By Ron Demcko, AVX click to enlarge Figure 1. Integration Capacitor Charge Calculations.

Build Agility through Wireless Networks Designed Right

October 15, 2009 9:33 am | Articles | Comments

Designing a wireless data network without fully accounting for the mix of applications, the types of client devices and number of users risks reduced performance. By Dr. Roger Skidmore, Motorola click to enlarge Figure 1.

Protecting Chinese 3G Base Stations

October 15, 2009 9:02 am | Articles | Comments

Judicious use of the appropriate protective circuits and devices in cellular base stations can greatly improve reliability and ensure required compliance with YD5098-2005. By Teddy To, China, Littelfuse Inc. click to enlarge Figure 1.

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WiMAX 101 The Evolution of WiMAX

October 14, 2009 9:18 am | Articles | Comments

With networks built around an infrastructure of base stations and subscriber stations like WiMAX, the size of the infrastructure and the number of deployments is a key consideration. John Schwartz, Digi International It is always interesting whenever a new standard is adopted or starts to gain some ubiquity in the marketplace.

State-of-the-Art IC: Transmitter in Ultrasound Devices

October 14, 2009 9:18 am | Articles | Comments

Lower voltage IC technologies now enable ultrasound receiver chips with unprecedented high gain and low noise numbers. By Ismail Oguzman and Arash Loloee, Texas Instruments click to enlarge Figure 1. Typical block-diagram of a complete medical ultrasound system.

Bringing the Real World into the Lab for 4G Wireless Testing

October 2, 2009 8:51 am | Articles | Comments

Failure to test base-station or mobile device receivers under realistic conditions can add significant risk in terms of support costs, churn, and operational costs. By Arashk “Ash” Mahjoubi-Amine, Spirent Communications click to enlarge Figure 1.

Challenges of LTE Basestation and Handset Testing

August 13, 2009 7:18 am | Articles | Comments

With the pressure on infrastructure equipment vendors to deliver quickly to market, structured, incremental and flexible test programs are essential for the development integration, verification and optimization of LTE infrastructure. By Phil Medd and Nick Carter of Aeroflex Test Solutions click to enlarge Figure 1.

Smart Design Strategies for the Wired and Wireless Network

August 4, 2009 6:52 am | Articles | Comments

Planning and designing an integrated wired/wireless network before construction begins pays big dividends later. By Ahmet Tuncay, Trapeze Networks and Paul Kish, Belden. click to enlarge Figure 1. Additional cabling from wiring closet switches to Wi-Fi mounting locations in ceilings should be accounted for in the initial cabling plan, leaving a 15- to 20-foot service loop at the end as wiggle room in case AP locations later require adjusting.

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Radio Channel Emulation Challenges in 3GPP LTE

June 26, 2009 6:55 am | Articles | Comments

Securing product performance in the field by using laboratory channel emulation can give a competitive edge to companies that use these solutions. By Janne Kolu, Elektrobit Corporation click to enlarge Figure 1. Emulation of a radio channel in the laborotary conditions.

Next-Generation Wireless Sensing is Moving Forward

May 27, 2009 7:31 am | Articles | Comments

With the integration of MEMS technology in the remote, motion signatures can be digitized for the game control. By Michelle Kelsey, Freescale Semiconductor The evolution of gaming is on its way - Freescale's accelerometer, MCU and radio portfolio enables an ideal chip set for low power with high integration.

It's in the Tag: The Importance of Considering Power Efficiency when Choosing a Real Time Location System

May 27, 2009 7:31 am | Articles | Comments

For a location system to deliver a return-on-investment, a critical mass of assets must be tagged for tracking. By Steve Jackson, RadarFind Corporation Figure 1. Status switches on RTLS tags. While more organizations are realizing the value of investing in a real time location system, demonstrating the return-on-investment is critical to garner broad support.

Electronic Packaging RF SiPs Demand Early Packaging Focus

April 8, 2009 6:48 am | Articles | Comments

By considering packaging in the early stages of product development, design teams can determine the best architecture for their particular application. By Ralph Ebbutt, Maxtek Components Corp. click to enlarge Figure 1 - An example of a system-on-chip (SoC) device.

Femto Mass Market Mobilization

March 16, 2009 7:03 am | Articles | Comments

By Todd Mersch, Continuous Computing So here we are in the second half of 2008 — why are femtocells not more widely deployed in our homes? When are we finally going to get five bars in the family room? And what’s keeping us from quicker YouTube downloads in our kitchens? click to enlarge Figure 1.

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Designing Handsets with Modularity

March 6, 2009 6:55 am | Articles | Comments

By Danny Tseng, Cypress Semiconductor Designing a platform with modularity in mind is one approach that can shorten design time as well as enable easier feature upgrades. click to enlarge Figure 1. Architecture modularization of a mobile handset.

Low Cost FPGA-Based HD/SD SDI Transceivers

February 25, 2009 10:46 am | Articles | Comments

The recent advent of low-cost FPGAs equipped with high-performance transceivers and DSP blocks will greatly reduce the build and deployment costs of a video broadcast system. By Shakeel Peera, Lattice Semiconductor Corporation click to enlarge Figure 1.

Noise Elimination Power Converter Control Circuit

February 25, 2009 10:46 am | Articles | Comments

Grounding and care in layout is the key to keeping noise out of the control circuit and allowing correct operation. Grounding and care in layout is the key to keeping noise out of the control circuit and allowing correct operation. By John Bottrill, Texas Instruments click to enlarge Figure 1.

F-RAM Moves to Automotive Infotainment Applications

January 30, 2009 9:05 am | Articles | Comments

Protecting infotainment dynamic data is essential. The unique advantage of F-RAM guarantees higher availability & performance. By Duncan Bennett, Ramtron International The use of non-volatile ferroelectric RAM (F-RAM) in automotive applications began with airbag applications. This type of safety critical application was click to enlarge Figure 1.

The Development of a Standard Hand Phantom for Wireless Performance Testing: Part 2

January 14, 2009 10:32 am | Articles | Comments

This is part two of a three part series. Read part one By Dr. Michael D. Foegelle, ETS-Lindgren; Kevin Li, Nokia Corp.; Andrew Pavacic, Paul Moller, Motorola, Inc. Defining the Grip An informal survey of advertised handsets on the market revealed that they could generally be separated into two categories by width.

Using Next-Generation Non-Stationary Noise Suppression to Enhance Voice Quality

December 30, 2008 6:41 am | Articles | Comments

Emulating the way that the human hearing system characterizes and groups the audio stream into sound sources proves to be an extremely efficient and accurate way to suppress both stationary and non-stationary noise. By Lloyd Watts, Founder and CTO, Audience click to enlarge Figure 1a.

Developing a Standard Hand Phantom for Wireless Testing

November 10, 2008 11:23 am | Articles | Comments

A standardized hand phantom used together with the SAM head phantom for radiated performance testing mirrors real-world use. Dr. Michael D. Foegelle, ETS-Lindgren, Kevin Li, Nokia Corp., Andrew Pavacic and Paul Moller, Motorola, Inc. Figure 1. The resulting kinematic CAD model.

Testing LTE

September 22, 2008 12:45 pm | Articles | Comments

Testing LTE Design simulation can be useful in addressing LTE design and verification challenges but requires consideration in selecting the appropriate model abstraction for the given phase of the design cycle. By Greg Jue, Agilent Technologies Emerging standards such as 3GPP Long Term Evolution (LTE) present a number of design and verification challenges for system engineers.

Trend Report: Energy Conservation and Sustainable Design

August 25, 2008 7:56 am | Articles | Comments

For a US company intending to launch a worldwide product, compliance with EuP regulations will ensure entry to that market of almost 500 million people. Jeff Uden, Newark One of the most interesting trends in the electronics industry at the moment is the movement towards designing products in an environmentally friendly way.

How US Design Engineers Can Meet Global Legislation Challenges (Part 1)

July 1, 2008 7:39 am | Articles | Comments

By Gary Nevison, Newark Designers of electronic and electrical equipment are increasingly challenged to design new products that comply with legislation that applies in the markets where their products will be sold. As more US manufacturers sell their products internationally, design engineers not only need to consider legislation in the U.

How US Design Engineers Can Meet Global Legislation Challenges (Part 2)

July 1, 2008 7:39 am | Articles | Comments

By Gary Nevison, Newark Designers of electronic and electrical equipment are increasingly challenged to design new products that comply with legislation which applies in the markets where their products will be sold. Previously, we took a look at all the different flavors of RoHS.

Simplify Spectrum/Signal Analyzer Selection with Five Key Considerations

April 11, 2008 8:06 am | Articles | Comments

By Takayuki Hando and Ben Zarlingo, Agilent Technologies Understanding your specific design needs and the functionality required can ease the selection process.

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