Advertisement
Blogs
Subscribe to Wireless Design and Development
View Sample

FREE WDD Email Newsletter

Hops and Pops in Timing aren't a Child's Game

December 1, 2011 3:28 am | Comments

Quartz resonators have many desirable properties, but they also show something called “hops and pops”. Unlike the fun subjects of Dr. Seuss' children's book, hops and pops in timing set a limit on how precise a frequency one can get from a quartz TCXO. The reasons crystals do this are not completely understood, but they include surface imperfections, contamination, material interfaces, anchor stress, and spurious resonances.

Air-Cored Spring Coil Family Expands Range

December 1, 2011 3:06 am | Comments

Available in both leaded and SMT configurations, a family of Air-Wound Spring Coils distributed by Total Frequency Control (TFC) includes a standard range of moulded SMT coils from 2.5nH to 500nH on tape and reel and custom wound designs with an infinite variety of winding types. Custom devices may be single or multi turn with clock-wise or anti-clockwise windings and internal diameter from 0.

The Tinker's Toolbox - Ashraf Elghamrawi of Analog Devices on RFICs

November 29, 2011 10:44 am | Comments

Hosted by Alix Paultre, the Tinker's Toolbox is the Advantage Design Group's web-based interview show where we talk about the latest technology, components, and design issues for the electronic design engineering community. In this podcast we talk to Ashraf Elghamrawi, Product Marketing Manager at Analog Devices,  about the RF landscape as it applies to smart devices and the challenges to the engineer.

Advertisement

Problem Solvers - The Next Decade of the Software-Defined Instrument

November 28, 2011 8:38 am | by David Hall, RF and Communications Product Manager, National Instruments | Comments

When you take a step back and look at how RF instruments have evolved over the past twenty years, you can observe how the evolution of wireless standards has pushed the RF front ends to new levels of analog performance. For example, one might remember the ORFS (Output RF Spectrum) measurement from GSM – long thought of as one of the most challenging RF measurements that an engineer could make with a signal analyzer.

Tech Exchange: Medical Connectors

November 22, 2011 10:59 am | Comments

Welcome to Tech Exchange on Medical Connectors!  This Month: Anthony J. Kalaijakis, Strategic Medical Marketing Manager, Molex 1. What are some of the major connector trends today influencing the global electronics market e.g., consumer electronics, industrial automation, medical electronics? The major trends for connectors in the medical device industry are: • Healthcare reform and reimbursement are driving the merging of commercial products and technologies into the medical market.

Mark Frauenfelder Presents Maker Faire

November 22, 2011 8:40 am | Comments

MAKE editor-in-chief Mark Frauenfelder would like to introduce you to some of his favorite makers, and the projects they've brought to Maker Faire. If you don't know about Maker Faire, it's a festive two-day exhibition of DIY invention and creativity held annually in several locations around the United States.

Minimizing Vulnerability of the Growing 4G Infrastructure

November 18, 2011 9:35 am | by Posted by Janine E. Mooney, Editor | Comments

by Jim Colby, Littelfuse The 4G buildout continues at full speed. A major telecom equipment manufacturer has predicted that by 2020, “everything that benefits from a network connection will be connected,” and that the number of connected devices will reach 50 billion. The 4G piece of this is high-speed, mobile connectivity; basically providing broadband speeds without a wired connection to the Internet.

Army develops self-aware, decision-making network

November 18, 2011 8:39 am | Comments

The U.S. Army is developing a “self-aware, decision-making network” that will ultimately reduce human decision-making requirements and increase network performance. The Skynet Cognitive Algorithm & Network Design Experiment (CANDE) was designed to enable easier network maintenance, reduce human decision-making requirements, increase network lifetime, transfer data with less delay, and reduce energy consumption.

Advertisement

Opto-electronic Circuit Simulation and Microwave Photonics

November 17, 2011 6:08 am | by Tom Smy, Ph.D. Professor Department of Electronics, Carleton University and Marcio Freitas, Ph.D. Senior Research Scientist, Optiwave | Comments

The ongoing convergence of electrical, solid state photonic and optical technologies has produced a wave of experimental results, new devices and novel applications - with Microwave Photonics (MWP) being a particularly exciting field. Roughly speaking, microwave photonics involves the optical generation, distribution and processing of microwave frequency (40 to 200 GHz) signals imposed on an optical carrier as a modulated envelope.

Tony Valentino of Quickfilter Technologies on Signal Management

November 16, 2011 5:07 am | Comments

Hosted by Alix Paultre, the Tinker's Toolbox is the Advantage Design Group's web-based interview show where we talk about the latest technology, components, and design issues for the electronic design engineering community. In this podcast we talk to Tony Valentino, Quickfilter Technologies COO, about signal managment issues and the challenges facing the designer.

Android Accessory Development with chipKIT MAX32

November 15, 2011 3:36 am | Comments

 This video demonstrates a working application example from Microchip's Accessory Framework for Android™ running on the chipKIT Development Platform.

Cloud to Service Endpoints - The Missing Link

November 15, 2011 3:29 am | by Paul Anderson, Wind River (www.windriver.com) | Comments

I remember as a kid I was fascinated with phones. The idea that you could pick up the phone, dial it, and talk to someone on the other end was pretty neat. And… at the time, a phone was an elegantly designed electro-mechanical work of art, and it was fun to take them apart to try and figure out how they worked.

TOPICS:

The Tinker's Toolbox - Mark Thirman of Illume on the User Interface

November 14, 2011 10:55 am | Comments

Hosted by Alix Paultre, the Tinker's Toolbox is the Advantage Design Group's web-based interview show where we talk about the latest technology, components, and design issues for the electronic design engineering community. In this podcast we talk to Mark Thirman of Illume Software ( www.getizup.

LCD Market Trends - Smartphones vs. TVs

November 14, 2011 5:07 am | Comments

This past summer, for the first time in the history of LCDTVs, the average selling price (ASP) of a 42” LCDTV dropped below that of a Smartphone. Simultaneously, the excess capacity of LCDTV panels hit its highest level in years with almost no growth forecasted between 2010 and 2011. So what does this tell us? Firstly, dropping prices will not necessarily sell more LCDTVs.

A'Swiss Army Knife for the Blind' using Freescale Kinetis MCUs

November 11, 2011 10:22 am | Comments

The Make It Challenge featuring Kinetis MCUs is Freescale's latest design contest. This design utilizes Freescale's Kinetis K60 Tower System, MQX software, the i.MX53 Quick Start board, along with IAR Systems' Embedded Workbench and GainSpan's Tower System 802.11b Wi-Fi Module. The Swiss Army Knife is a portable product for blind people, integrating: - Notepad - Portable Scan to Braille - Twitter Communication Also provides PC software so blind people can be trained/monitored by people without Braille coding knowledge: - Writing Coach - Reading Coach The K60-based B-Notepad offers a portable solution for storage into a SDHC card, so students type notes using the B-Keyboard and review using the B-Display B-Writing Coach is used to capture dictation to the B-Keyboard; the data is sent to the PC using the Tower Wi-Fi module so it can be graded by the teacher.

Pages

X
You may login with either your assigned username or your e-mail address.
The password field is case sensitive.
Loading