Design Con 2015

Wireless/Networking

Janine Love
Senior Editor
A resources site and community for engineers involved in designing communications or networking-related products and systems. Find design tips, new product information and discussion on wired and wireless networking (Ethernet, ZigBee, Wi-Fi etc.), telecom (3G, 4G, LTE etc.), and application areas like the smart grid, smart homes, the Internet of Things, and cloud computing.

Vote for the Best Products of 2014

At DesignCon 2015, the Best in Design & Test Awards will be awarded in the ChipHead Theater at 5PM on Wednesday January 28th, 2015 in the Santa Clara Convention Center at DesignCon 2015, please cast your vote now! Read More...

Vote for the Engineer of the Year

DesignCon2015 has announced the finalists for the Engineer of the Year Award (sponsored by National Instruments). The award includes a $10,000 grant that will be given out at DesignCon. Read More...

Review: Tektronix RSA306 spectrum analyzer (part 2)

In part 2 of this review, we’ll cover some of the more advanced features and measurements. Read More...

Help save a part of engineering history

The first house to have a telephone is up for sale. You can help turn it into a museum. Read More...

How to virtualize network functions

Here’s how to use network functions virtualization (NFV) to take network functions that sit in dedicated appliances and relocate them as virtual instances, leading to increased flexibility, reduced CapEx and OpEx, and increased innovation. Read More...

FPGA-based FSK/PSK modulation

Follow the development of a complete modulator project using a Cyclone IV FPGA. Read More...

Envelope tracking makes CMOS PAs possible in 4G smartphones

A look at how to improve the efficiency of CMOS PAs using envelope tracking. Product data includes performance testing using products from Nujira and Peregrine Semiconductor. Read More...

Basics of the IEEE Standardization process

Here's a look at the seven steps in the production of a typical IEEE standard. Read More...

Use synchronous detection to make precision, low-level measurements

Synchronous Detection, the principle behind lock-in amplifiers, is a useful technique for extracting signals buried well below the noise floor. This article discusses the frequency domain operations involved in synchronous detection, different circuit implementations of the technique, and the pros and cons of each one. Read More...

Sensor fusion enhances device performance

Sensor fusion is a highly specialized area of design with roots deep in modelling and simulation technology. It requires the utmost detail in the understanding of how sensors work; their shortcomings and interaction. Here’s how it is contributing superior accuracy in next-gen electronic devices. Read More...

Death to "half-power handsets"

Here are the technical reasons why handset designers and RF engineers should be turning the transmit power up, not down, to extend battery life and optimize LTE network performance. Read More...

Profiles in Design: Alex Lidow, Ph.D.

“For the first time in 60 years we have a technology that is both higher performance and lower cost than silicon.”—Alex Lidow Read More...

GaN: The dawn of a new era?

As designs become more complex, engineers are turning to newer semiconductor materials, such as GaN. But what exactly can it be used for and what are its limitations? Read More...

Book excerpt: Power over Ethernet Interoperability, CHAPTER 2, Part 1

Sanjaya Maniktala’s book review appeared on EDN a while ago and I am posting this chapter excerpt (In two parts) along with a second one shortly from two of the key chapters that will give you a sense of the importance of this technical gem. Read More...

Profiles in Design: Karen Bartleson

“Learn how to negotiate effectively. It’s amazing what you can do when you can resolve conflict and bring people together in agreement.”—Karen Bartleson Read More...

Review: Tektronix RSA306 spectrum analyzer (part 1)

The spectrum analyzer has always been a vital tool for the EMC engineer. Until the last few years, these instruments have been rather large and heavy desktop instruments, weighing up to 60 pounds, or more. With the breakthroughs in components used for wireless technology, the size and weight of these instruments has decreased dramatically. In this review, we'll check out the new Tektronix RSA306 spectrum analyzer and run it through its paces. Read More...

Book Review: Power over Ethernet Interoperability

Power over Ethernet (PoE) was a solution to a problem in Voice over Internet Protocol (VoIP) systems. Read More...

Test challenges for USB 3.1 SuperSpeedPlus

Testing for USB 3.1 involves not only measuring traditional eye diagrams, but also RF analysis using spectrum analyzers, time domain reflectometry, transmission characterization using S-parameters, and the new requirement for loopback receiver testing. Here's how to do it. Read More...

Slash SoC power consumption in the interconnect

A modular approach to SoC interconnect slashes power consumption with unit-level clock gating. Read More...

LXI + PoE: Essential Design Considerations

This paper introduces the basic concepts of LXI (LAN eXtensions for Instrumentation) and PoE (Power over Ethernet), and studies the four key considerations for hardware realization to achieve LXI compliance for a device powered over Ethernet. The LAN PHY compliance test is also discussed. Read More...

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Avago Tech Note: High-speed optocouplers enable industrial networks

Communicate at up to 25Mb/s over (e.g.) PROFIBUS. Read More...

LTC Design Note: Robust 10MHz reference clock input protection circuit and distributor for RF systems

Design a protected 10MHz reference input without degrading phase noise. Read More...

Postprocessing converts Spice to RF analyzer

Designers of RF and high-frequency products need a simulator that can predict noise figure at a given frequency, minimum noise figure, optimum reflection coefficient for noise, and noise resistance. Read More...

Simple circuit suits quadrature detection

A circuit generates an output voltage that you can measure to determine whether two sine waves have a quadrature relationship. Read More...

Low-cost RF synthesizer uses generic ICs

You can make an AM-band frequency synthesizer from standard components. Read More...

Achieve simple IR-data transmission from a PC’s serial port

By transmitting appropriate hex values from a PC's serial port to a pair of IR LEDs, a remote-control IR receiver can enable 38.4-kHz data transmission. Read More...

Small, 915-MHz antenna beats monopole

A 915-MHz data-acquisition project required a small antenna, but the available antennas lacked the necessary characteristics: efficiency, compactness—that is, smaller than a standard 3-in. monopole—with adequate bandwidth, and with amenability to modeling by inexpensive NEC-2 antenna software. Read More...

Automotive link uses single wire

In the automotive industry, in which the goal is to produce cars with simpler, lighter wiring looms, any interface that uses just one wire instead of two offers a distinct advantage. The circuit in Figure 1 implements a bidirectional link using a single wire, with the car's chassis or ground conductor providing a negative return path. Read More...

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Digital TV demodulator boasts worldwide broadcast standards

Silicon Labs' next-generation digital TV demodulator family has expanded support for the latest satellite, terrestrial and cable standards. Read More...

Clock IC employs built-in JESD204B SYSREF generator

In addition to 14 outputs configurable for HSTL or LVDS, Analog Devices’ AD9528 two-stage PLL integrates a JESD204B SYSREF generator to accommodate the clock requirements of LTE and multicarrier GSM base-station designs, defense electronics systems, RF test instrumentation, and other wideband RF GSPS data-acquisition signal chains. Read More...

Cloud-based Smart Building system enables genius-level Smart Lighting

Daintree Networks' subscription-based cloud application provides a full suite of building and energy management services including genius-level Smart Lighting capabilities. Read More...

EDN Hot 100 products of 2014: Wireless & Networking

This section of EDN's Hot 100 Products of 2014 includes communications/networking products for both wired and wireless applications. Read More...

RF, wireless test on display at Electronica

UK-based Cobham Wireless, formerly Aeroflex wireless business unit, displays stand aonle, PXI, and system-based wireless test equipment in Munich. Read More...

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Teardown: Apple iPad Air packs faster A7

Apple's iPad Air packs a somewhat faster A7 processor but few other surprises. Read More...

Dissecting the Intel 710 Enterprise SSD

The design for this drive, which uses multilevel-cell NAND flash for primary storage, emphasized endurance, reliability, and power efficiency. Read More...

Teardown: Ethernet and EMP take out TV tuner

In this teardown we look for evidence that an EMP generated by a lightning bolt coupled to Ethernet cable, acted as an antenna, and zapped relevant ICs inside a TV tuner. Read More...

Dissecting Disney's MagicBand

Disney is no stranger to technology, but one of the really cool tools they've put out fairly recently is the MyMagic+ system or MagicBand. Read More...

The Nexus One: Google hits a smartphone home run

More than a year after its unveiling, the Nexus One remains a leading-edge product, and represents a substantial leap in capability beyond the T-Mobile G1. Read More...

Wireless high-definition video: silicon consolidation that's maximal

The Wireless Gigabit Alliance's 60-GHz-based high-definition wireless-video-transport scheme may be on the way, but SiBEAM's pioneering approach and multiple product generations are already on the scene. Read More...

Sony Ericsson’s Xperia X10 mini: the teardown skinny

Does this smartphone address the market need for a simpler handset that will make and take calls, handle e-mail and Web surfing, and fit comfortably into a normal-sized pocket? Read More...

Inside a cellular femtocell

The solution to smartphone data traffic is a problem for femto-basestation designers. Read More...

Plugging hardware-based compression into a server

Prying Eyes gets an early look at a forthcoming PCIe-based hardware accelerator for the open-source GNU-zip algorithm. Read More...

Seeking the secrets of a satellite receiver

DirecTV set-top-box design focuses on modularity for the mass market. Read More...

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How to virtualize network functions

Here’s how to use network functions virtualization (NFV) to take network functions that sit in dedicated appliances and relocate them as virtual instances, leading to increased flexibility, reduced CapEx and OpEx, and increased innovation. Read More...

Envelope tracking makes CMOS PAs possible in 4G smartphones

A look at how to improve the efficiency of CMOS PAs using envelope tracking. Product data includes performance testing using products from Nujira and Peregrine Semiconductor. Read More...

Test challenges for USB 3.1 SuperSpeedPlus

Testing for USB 3.1 involves not only measuring traditional eye diagrams, but also RF analysis using spectrum analyzers, time domain reflectometry, transmission characterization using S-parameters, and the new requirement for loopback receiver testing. Here's how to do it. Read More...

Slash SoC power consumption in the interconnect

A modular approach to SoC interconnect slashes power consumption with unit-level clock gating. Read More...

Cross-phase signal coupling in powerline communication

In powerline communication (PLC), severe signal attenuation and considerable can affect the communication performance; here’s how to address that. Read More...

Mitigate cyber security hazards in smart grids

With the advent of smart grids, a "digital 9/11" is but waiting to happen, for these grids can easily fall prey to escalating cyber hazards. Read More...

S-parameters basics

S-parameters are a “frequency-domain” description of the electrical behavior of a network. Here’s an introduction to what they mean and how they are determined. Read More...

How to remove signal data artifacts

This Product How-To article explains how to remove signal data artifacts using a finite impulse response (FIR) notch filter and a Python-based math platform Read More...

History of GaN-on-diamond technology

Brief history of the development of the GaN-on-diamond technology that deposits diamond to within hundreds of nanometers of the GaN channel, discussing the current status of the GaN-on-diamond technology, as demonstrated by different players. Read More...

EMI pre-compliance test with a microwave oven?

It makes sense to do some “quick-and-dirty” bench testing to see if you stand a chance of passing EMI compliance testing. Here’s how you can do it with typical lab test equipment and an old microwave oven. Read More...

Top 5 things to know about wireless power design

Recent advances in components, chips, and system architectures allow engineers to readily implement wireless power into their devices. So, let’s examine the top five things to know about wireless power design. Read More...

Clock tree design challenge

Case study: Latest advances in programmable clock generators lay the foundation for successful high-performance datacenter networking solution. This application example includes IDT’s VersaClock 5 programmable clock generator. Read More...

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Vote for the Engineer of the Year

DesignCon2015 has announced the finalists for the Engineer of the Year Award (sponsored by National Instruments). The award includes a $10,000 grant that will be given out at DesignCon. Read More...

Review: Tektronix RSA306 spectrum analyzer (part 2)

In part 2 of this review, we’ll cover some of the more advanced features and measurements. Read More...

Help save a part of engineering history

The first house to have a telephone is up for sale. You can help turn it into a museum. Read More...

Contest winners target environmental problems

Participants in the North Texas Apps Challenge talk about the winning ideas that scored $80,000. Read More...

Silicon photonics: What are the advantages?

Sneak peak at "Perspectives on silicon photonics (an honest forum)" at DesignCon 2015 Read More...

5 rules for playing nice with IoT gateways

Here are some design considerations that might help avoid mass confusion in the IoT. Read More...

7 steps to security for the Internet of Things

Keeping IoT devices and their data secure will be essential as the IoT grows. The principles of enterprise security are a good approach to take. Read More...

8 attributes IoT gateways need

For many IoT devices, gateways are an essential link to the wide area network. Here's what they need to be effective. Read More...

Connectivity a game changer for embedded design

Connecting to a network can do much more than provide a remote interface for an embedded design. Read More...

RF considerations in wireless sensor networks

Your RF choices in wireless sensor network design can have a big impact on power consumption. Read More...

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