ESC 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.

Chasing 5G: Pizzacato, sigma delta and other architectures

“Outside-the-box” ideas about radically different architectures will emerge to meet the very difficult demands of higher speed and bandwidth radio at much lower power that 5G will need to be successful. Read More...

Shatter bottlenecks in WLANs and keep legacy infrastructure

Here’s how installed cable can still achieve multi-gigabit data rates in the enterprise. Read More...

De-embed transmission lines with FIR filters

This DI uses MATLAB to design de-embedding filters which clean up high-speed signal measurements. Read More...

OIF demonstrates 50 Gbps signals using two modulations

Two videos from OFC 2015 show how backplanes and capper cables are capable of handling 50 Gbps signals. Read More...

Keysight BERT adds adjustable ISI

The M8062A module for Keysight's J-BERT lets you test receivers at speeds to 32.4 Gbps while simulating intersymbol interference from copper trace lengths. Read More...

Fiber inspection tool connects to Android devices

EXFO's FIP-435B handheld fiber inspection tool connects over Wi-Fi to any Andriod tablet or phone, letting you view the quality of a fiber-optic connection. Read More...

70 GHz oscilloscope offers flexibility, low noise

Tektronix gets back in the high-bandwidth game with the DPO 70000SX, not only in terms of bandwidth but with a flexible architecture. Read More...

Instrumentation amp makes an accurate transimpedance amp too

The interesting topology in this Design Idea turns a monolithic in-amp into a good transimpedance amp for photodiode or similar applications. 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...

The mysterious disappearance of duo-binary signaling

At DesignCon 2015, we heard that Duo-binary modulation isn't sufficient for 56 Gbps data transmissions, yet we saw it in live demonstration. What's going on? 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...

Build 802.11ah waveforms with a signal generator

Keysight Technologies’ N7617B Signal Studio for 802.11 WLAN software lets you create IEEE 802.11ah signals with several Keysight vector signal generators. Read More...

ams and ST team up to secure NFC mobile payments

ams AG and STMicroelectronics have collaborated to introduce an NFC system reference design that assures easy, reliable and secure contactless transactions while suiting the form factor of mobile and wearable devices. Read More...

Characterize interconnects with S-parameters, Part 2

A closer look at not only S11 (return loss or reflected signal), but also S21 (insertion loss or transmitted signal). Read More...

WPT breaks all connections, Part 1

Wireless power transfer (WPT) has been the subject of intense interest, bordering on folklore, for over a century. The arrival of the modern cell phone with its innumerable “apps” and rising battery consumption, has recently sparked off a huge upsurge in consumer demand for wireless chargers. Read More...

NRZ to AMI converter uses single supply

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

Hackaday Prize 2015 aims to benefit to Humanity

The contest goal is solving a problems that matter to everyone, such as in areas of pollution, food for all, and energy efficiency and storage. 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...

The fully Digital radio transmitter: Is it real or more hype?

Cambridge Consultants are claiming the world’s first fully digital radio transmitter built only from computing power. Read More...

Farewell, Leonard Nimoy

EDN bids farewell to the actor who inspired many to become engineers and scientists. 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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Run two PANs with one transceiver

Dual-antenna diversity allows this transceiver to support two personal area networks simultaneously. Read More...

Processor and radio module makes BLE design a snap

This self-contained module already has all its qualifications and approvals, making BLE a drop-in feature. Read More...

48-layer 3-D NAND flash hones SSD performance

Continuing to promote the migration to 3-D NAND flash memory, Toshiba has begun sampling its BiCS (Bit Cost Scalable) 48-layer 3-D vertically stacked cell structure flash, which enhances the reliability of write-erase endurance and boosts write speed compared to planar NAND flash. Read More...

Quad DAC delivers 2.4 GSPS for complex IF transmitters

Operating from 100 MHz to 300 MHz, the AD9154 four-channel, 16-bit DAC from Analog Devices provides a maximum sample rate of 2.4 Gsamples/s, permitting multicarrier generation to the Nyquist frequency in baseband mode. Read More...

Keysight BERT adds adjustable ISI

The M8062A module for Keysight's J-BERT lets you test receivers at speeds to 32.4 Gbps while simulating intersymbol interference from copper trace lengths. 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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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...

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...

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Promising hardware hampered by buggy software

WD's router is perhaps the most blatant yet example of a longstanding phenomenon; tremendous hardware potential hampered by buggy and otherwise underperforming software. Read More...

OIF demonstrates 50 Gbps signals using two modulations

Two videos from OFC 2015 show how backplanes and capper cables are capable of handling 50 Gbps signals. Read More...

Apple Watch details begin to emerge

Post-Apple event spokesperson comments and developer leaks often provide useful fodder to fill in any gaps. Here's what we've recently learned about the Apple Watch. Read More...

Inverse Fourth Power

Radar echoes from remote targets decay in inverse proportion to the fourth power of the distances to those targets. A quick look at the physics of the situation makes the reason for this clear. Read More...

Wireless, battery-free sensors can detect explosives and chemical threats

Penny-sized RFID tags coated with a sensing material that responds to explosives and oxidizers may prove useful in counter-terrorism efforts. Read More...

Security needs more than checklist compliance

Following a checklist of requirements is only a start for designing security into electronics products. Read More...

Vendors fielding end-to-end IoT support

Vendors are realizing that to gain IoT design wins they need to provide more than device support, and responding with end-to-end design packages. Read More...

Farewell, Leonard Nimoy

EDN bids farewell to the actor who inspired many to become engineers and scientists. Read More...

See the latest in communications test at MWC 2015

Mobile World Congress 2015 will highlight top trends such as 5G, LTE-A and carrier aggregation. Read More...

Wi-Fi network interference, analysis, and optimization

One aspect related to EMC today is that, with the proliferation of embedded wireless systems in all imaginable products, comes the risk of increasing interference and resulting slowdown in data transfer. We'll discuss how wireless networks work, the typical interfering sources and how best to manage your system. Read More...

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