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.

IEEE Working Group to cover high-speed PCB measurements

IEEE Working Group P370 is investigating ways to standardize S-Parameter measurements for signal integrity using VNAs. Read More...

Celebrate Pluto and Apollo

The anniversary of the first moon landing and the Pluto flyby provides the perfect opportunity to highlight EDN's space coverage over the years. Read More...

Flexible RF Front End Designs for Mid-Tier and Regional Smartphones

New flexible design techniques are shortening development times and increasing design reuse as mobile phone standards proliferate. Read More...

Analyzer handles broadband and pulsed signals up to 85 GHz

Rohde & Schwarz is claiming the company's R&S FSW85 high-end signal and spectrum analyzer is the only instrument on the market to cover the frequency range from 2 Hz to 85 GHz in a single sweep. Read More...

5G base station architecture: The potential semiconductor solutions

5G isn't as far off as you might think. Part 2 of this series on 5G explores the many possibilities of semiconductor solutions, both in IC form and in discrete form. Read More...

Prediction: Microwave coming to PXI – big time!

Industry forces are lining up for high frequency microwave in PXI. Larry Desjardin explains the technical and market forces behind it and makes a prediction of what’s coming. Read More...

Industry events demonstrate Ethernet speeds

During the week of June 22, 2015, the UNH-IOL held a 40G/100G plugfest and ran tests on the emerging IEEE 802.3by 25G Ethernet physical layer. Senior Technical Editor Martin Rowe was there and met with John D'Ambrosia of the Ethernet Alliance and Jeff Lapak of UNH-IOL. See the interview in a video. Read More...

Simplify communication system design while increasing available bandwidth

In modern communications systems, the more bandwidth that is available, the more information that can be transmitted. As the requirements for bandwidth increase, the need for faster and higher linearity ADCs (analog-to-digital converters) and amplifiers also increases. With increased bandwidth, more noise is introduced into the system which can overpower low level signals of interest. This places added requirements on the ADC and amplifier to have low noise. Read More...

Sensor-Based IoT Architecture

Before its recent rebranding as “IoT,” the Internet of Things concept began emerging with devices like the now famous Coke® machine at Carnegie Mellon University (CMU), which since the 1980s has been self-monitoring its internal stock of soft drinks. It monitors how long each bottle has been cooling in the machine and stores this information on a server for access via faculty and students’ computer terminals before they make the long trek to their beloved fueling station. Read More...

New house brings Internet questions & wireless links

Not only was the Internet service a big unknown at our new rural house, we needed to wirelessly connect a second building. But how? Read More...

PXIe signal analyzer adds signal sources

The Keysight M9290A CXA-m signal analyzer is the first PXIe stimulus response measurement instrument. Read More...

Review: The Aaronia BicoLOG 30100X and HyperLOG 7060 EMI antennas

The majority of my work includes troubleshooting and pre-compliance testing for clients and I’m always on the lookout for useful EMI equipment to make my job easier. In this review I'll be trying out the Aaronia BicoLOG 30100X (30 to 1000 MHz active antenna with attached 40 dB preamp) and a HyperLOG 7060 (700 MHz to 6 GHz log-periodic). Read More...

Maximizing performance and integration in applications requiring isolated SPI

Optocouplers are not as simple to design with as a digital isolator, especially the simple low speed optocouplers. A crash course in how Optocoupler CTR (Current Transfer Ratio) changes with time and temperature and how it affects speed in the application may be required. Read More...

Workshop opened my eyes to the latest in test

Attending Keysight's Advanced Measurement Lab was a worthwhile experience, one that leaped me into the latest measurement technology. Read More...

Record and analyze RF and wireless signals

The RP-6100 series from Averna lets you record hours of RF and wireless signals for analysis. Read More...

Powering Ethernet, Part 2: Optimizing Power Consumption during Standby Operation

Power consumption during the standby operation is also of concern, especially when designing to specifications such as the ‘One Watt Initiative.’ Read More...

Silicon photonics: Will the hare finally catch the tortoise?

Silicon photonics is sort of like fusion energy, always right around the corner. But this time, it's for sure. Read More...

JTAG Boundary scan: Four test cases

Learn how an engineering design consulting company used Boundary scan to solve problems in four microprocessor-based boards. Read More...

Optimizing clock synthesis in small cells and heterogeneous networks

Mobile network operators are increasingly turning to small cell base stations to expand coverage, increase capacity and enable network densification in congested, high-traffic urban environments. Small cells are low-power radio access nodes that can be used by operators to offload mobile data to Internet Protocol (IP) networks and enable more efficient use of radio spectrum in 4G/LTE applications. Read More...

MIMO over-the-air testing ready to roll

Here's what you need to know to get started with MIMO OTA testing. Read More...

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NRZ to AMI converter uses single supply

Convert serial data to AMI format with this simple Design Idea. Read More...

Monitor a differential pair for valid & fault conditions

Monitor the state of a differential communications line with this Design Idea. Read More...

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...

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Pasternack adds VNA calibration kits

Pasternack has added three kits to its line of calibration kits used with vector network analyzers. Frequencies include 3 GHz, 8.5 GHz, and 26.5 GHz. Read More...

Analyzer handles broadband and pulsed signals up to 85 GHz

Rohde & Schwarz is claiming the company's R&S FSW85 high-end signal and spectrum analyzer is the only instrument on the market to cover the frequency range from 2 Hz to 85 GHz in a single sweep. Read More...

Integrated Bluetooth ICs advance Internet of Things

Two programmable Bluetooth Low Energy (BLE) chips from Cypress Semiconductor ease the design of low-power, sensor-based systems. Read More...

PXIe signal analyzer adds signal sources

The Keysight M9290A CXA-m signal analyzer is the first PXIe stimulus response measurement instrument. Read More...

Record and analyze RF and wireless signals

The RP-6100 series from Averna lets you record hours of RF and wireless signals for analysis. Read More...

>> SEE ALL

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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Flexible RF Front End Designs for Mid-Tier and Regional Smartphones

New flexible design techniques are shortening development times and increasing design reuse as mobile phone standards proliferate. Read More...

A look into Bluetooth v4.2 for Low Energy Products

Bluetooth LE v4.2 introduces some important specification changes. Here's a quick summary. Read More...

Can all the wireless charging standards coexist?

When it comes to wireless charging, the question for many developers is whether or not the various standards like Qi and A4WP can coexist, and how to design for that. Read More...

LTE-A Release 12 transmitter architecture: analog integration

In part 2 of a series, Damian Anzaldo explains how LTE-Advanced Release-12 shapes eNode transmitter architecture, specifically in terms of the analog integration challenge. The article includes an example using a MAX5868 RF DAC transmitter from Maxim Integrated. Read More...

Understand LTE-A Release 12 transmitter architecture: Part 1

A technical look at the market forces driving global adoption of the LTE standard and trends in 4G radio access technology. Topics include carrier aggregation (CA), spatial multiplexing, and active antenna systems (AAS). Read More...

Network lifecycle management and the Open OS

The bare-metal switch ecosystem and standards are maturing, driven by the Open Compute Project. Pica8’s Steve Garrision sees Linux-based network OS software as transforming network economics and innovation for switches, just as it has done for servers. Read More...

Marvell shrink-wraps IoT gateway product

Marvell came to the International CES to pitch a ready-to-customize home server/home networking/IoT gateway system, called “Smart Home Cloud Center.” Read More...

Implement a VXLAN-based network into an SoC

Here’s how to eliminate bottlenecks in hyperscale cloud datacenter SoCs with VXLAN-based networks over 10G Ethernet IP Read More...

5 Bluetooth devices for the body at CES

At a pre-CES Bluetooth event, wearables and fitness devices were the stars of the show, with a few neat medical applications making waves. 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...

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...

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Meetup at Maker Faire!

My Smart Hat just reminded it's time to invite you to our 2nd annual Reader/Editor Meet-Up at the NY Maker Faire, held Sept. 26 & 27, at the New York Hall of Science. Please join me, and your fellow EDN readers for fun, fellowship and a chance to go backstage at some of the Faire's most interesting exhibitors. Read More...

IEEE Working Group to cover high-speed PCB measurements

IEEE Working Group P370 is investigating ways to standardize S-Parameter measurements for signal integrity using VNAs. Read More...

The power of ZigBee 3.0 - What it means to Smart Lighting

As the IoT market accelerates and becomes more of a reality, the hype surrounding it becomes more intense and more confusing. It is time for a reality check to take inventory of where things really stand, and to make some assessment of where things are going. Some confusion has been cleared, some confusion has exacerbated – but let’s start with what has simplified. Read More...

What's next for wearables?

Wearables have the power to transform the world around us - to interact on our behalf with other 'smart' devices that are increasingly common. Read More...

Chrome OS could find success in schools

Chrome OS-based systems are still too restrictive for general-purpose use, but they're darn close to perfect in specific vertical markets. Read More...

Celebrate Pluto and Apollo

The anniversary of the first moon landing and the Pluto flyby provides the perfect opportunity to highlight EDN's space coverage over the years. Read More...

Effective Timing Strategies for Increasing PCIe Data Rates

The PCIe standard has become a popular choice for high-speed serial communication but as successive generations of the standard offer increased data rates, reference clock performance is becoming progressively more critical and the specifications more aggressive to ensure good timing margins. Read More...

7 tips for writing portable C code

Code re-use is becoming critical, so here are some tips on developing portable C. Read More...

Pasternack adds VNA calibration kits

Pasternack has added three kits to its line of calibration kits used with vector network analyzers. Frequencies include 3 GHz, 8.5 GHz, and 26.5 GHz. Read More...

Smart fan trays keeps rack equipment cool

Configured with three or six fans, Verotec’s 1U intelligent fan trays decrease or increase fan speed in response to temperature. Read More...

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