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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.

Deliver at 100G: The impact of smart memory

With new developments in serial memory solutions, middleware systems can now buffer, process packets, and steer traffic to general purpose CPU arrays 2-10 times faster than previous 10G or 40G solutions. Read More...

Wearable computing meets Bluetooth Smart

The increasing popularity of wearable computing devices such as smart watches demands a technology like Bluetooth Smart to power a multitude of applications without draining battery life. Read More...

Book review: Jerry Sevick’s Transmission Line Transformers

The following is a book review of what started out in 1987 as a compilation of research done on wideband transformers for matching vertical antennas to 50 ohm transmission lines. Read More...

Intro to airborne radar

George Stimson’s Introduction to Airborne Radar is now in its third edition. Here’s a look at how SciTech worked with a team of radar and EW engineers to update the latest version of this venerable text. Read More...

5 guidelines for DPI development and deployment

Here are some ideas on how to navigate deep packet inspection (DPI) solutions in a network functions virtualization (NFV) and software defined networking (SDN) world. Read More...

Quick & dirty cable length & impedance measurement

Can't afford a full-blown TDR? Here are a few quick & dirty measurement tips. Read More...

The $11 spectrum analyzer & SDR

It may not be a Tek or Agi or R&S (or even Rigol), but if your needs are modest, you can have an $11 spectrum analyzer and software-defined radio. Read More...

DecaWave DWM1000 module: Precise indoor location

Fabless Ireland semiconductor company, DecaWave, announced their first module, DWM1000, based on what the company claims is the industry's most precise indoor location and communication CMOS chip, the DW1000 Read More...

Microchip Bluetooth Low Energy smart module

Microchip Technology Inc. announced its first Bluetooth® 4.1 Low Energy module Read More...

Microwave product roundup: IMS2014

The IEEE MTT International Microwave Symposium took place in Tampa, FL. If you weren’t able to make the Expo, here are some products making news. Read More...

Designing for IoT—Part IV—The Cloud

Some IoT systems may not need back end services, but the majority of the currently envisioned IoT systems rely on the collection, processing and usage of data by the IoT devices and for this, some form of Information Technology different than embedded systems is required Read More...

Designing for IoT—Part III—Internet Usage and Protocols

This segment looks at the Internet, its usage by IoT devices, and the existing and new Internet protocols supporting the explosive growth of this new industry. Read More...

>> SEE ALL

Avago Tech Note: High-speed optocouplers enable industrial networks

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

Use a PIC for automatic baud-rate detection

Automatic baud-rate detection is desirable in many applications. Microchip's standard USART used in most of its PIC microcontrollers lends itself to a simple baud-detection scheme. Read More...

Chip recorder customizes phone ringer

Companies usually purchase one type of telephone for all employees, which is understandable, especially if they obtain a discount for buying in quantity. One ringer sound for everyone can pose a problem, though, if the sound of a ringing phone makes a dozen people pause and look at their telephones. Equally annoying is the absence of a visual message indicator. Read More...

>> SEE ALL

DecaWave DWM1000 module: Precise indoor location

Fabless Ireland semiconductor company, DecaWave, announced their first module, DWM1000, based on what the company claims is the industry's most precise indoor location and communication CMOS chip, the DW1000 Read More...

Microchip Bluetooth Low Energy smart module

Microchip Technology Inc. announced its first Bluetooth® 4.1 Low Energy module Read More...

VSG supports frequencies to 20 GHz

The SMW200A Vector signal generator from Rohde & Schwarz supports frequencies up to 20 GHz with Signal bandwidths to 160 MHz. Read More...

Handheld spectrum analyzers come in 3.6 and 6 GHz versions

Handheld spectrum analyzers come in 1.3 GHz and 6 GHZ models. They produce measurements in dBm or dBµV, mV, or µW Read More...

MCU-based network processor forms core of simplified IoT wireless connectivity solution

Texas Instruments has extended its SimpleLink WiFi family with the addition of its CC3100 wireless network processor (WNP) and CC3200 wireless MCU designed to simplify integration of wireless connectivity in Internet of Things designs. 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...

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...

Wireless USB in a dongle

A dongle that turns a USB port into a wireless base station has to exploit the greatest possible level of integration. Read More...

>> SEE ALL

Deliver at 100G: The impact of smart memory

With new developments in serial memory solutions, middleware systems can now buffer, process packets, and steer traffic to general purpose CPU arrays 2-10 times faster than previous 10G or 40G solutions. Read More...

5 guidelines for DPI development and deployment

Here are some ideas on how to navigate deep packet inspection (DPI) solutions in a network functions virtualization (NFV) and software defined networking (SDN) world. Read More...

Microwave product roundup: IMS2014

The IEEE MTT International Microwave Symposium took place in Tampa, FL. If you weren’t able to make the Expo, here are some products making news. Read More...

Improve 400 GbE and 100 GbE performance: Product How To

A look at the high efficiency GigaChip Interface and how to address the requirements of next-generation equipment with an intelligent memory architecture. The product example used is the MoSys 3rd Generation Bandwidth Engine IC. Read More...

Designing for IoT—Part IV—The Cloud

Some IoT systems may not need back end services, but the majority of the currently envisioned IoT systems rely on the collection, processing and usage of data by the IoT devices and for this, some form of Information Technology different than embedded systems is required Read More...

Designing for IoT—Part III—Internet Usage and Protocols

This segment looks at the Internet, its usage by IoT devices, and the existing and new Internet protocols supporting the explosive growth of this new industry. Read More...

Addressing expanding wireless data usage? Turn To carrier grade Wi-Fi

The HEW study group started discussions of possible technologies that could address the requirements of Carrier Grade Wi-Fi (CGW). This article discusses promising candidates. Read More...

Watching software defined networking take hold

SDN is being touted as a disruptive technology that will, once implemented, allow corporations to lower IT costs and be more responsive and flexible. Read More...

Getting to know the IoT

It’s time to take in some education on the Internet of Things. Read More...

Perspective from MWC: Movea’s motion processing play

Movea’s team sat down with EDN to talk about its roadmap and how its sensor hub architecture fits within a number of market segments catching attention at the Mobile World Congress. Read More...

MWC: The promise of NFC

One of the topics of conversation popping up at the 2014 Mobile World Congress is the promise of near field communication technology. Read More...

Designing IoT—Part II—The Thing

Here is Part II of a four-part series on Designing IoT. This segment concentrates on exactly what is it that’s hanging off of IoT—The thing itself. Read More...

>> SEE ALL

Intro to airborne radar

George Stimson’s Introduction to Airborne Radar is now in its third edition. Here’s a look at how SciTech worked with a team of radar and EW engineers to update the latest version of this venerable text. Read More...

Quick & dirty cable length & impedance measurement

Can't afford a full-blown TDR? Here are a few quick & dirty measurement tips. Read More...

The $11 spectrum analyzer & SDR

It may not be a Tek or Agi or R&S (or even Rigol), but if your needs are modest, you can have an $11 spectrum analyzer and software-defined radio. Read More...

Can a $129 spectrum analyzer be any good?

An EMC consultant reviews the RF Explorer. Read More...

Act fast to harness and optimize MEMS performance in portables

Starting to use MEMS technology in portable applications including wearables, healthcare, gaming or automotive? If so, tune in on Thursday, June 26 at 2:00 pm ET to catch Optimizing MEMS Performance in Portable Applications. Read More...

Cloud building with software defined networking

Traditional approaches to networking won’t meet the high bar of agility and elasticity that the cloud requires. So, engineers are coming together in open-source communities to solve this puzzle of compute, storage, and network. Read More...

DC to 110 GHz: Analog Devices and Hittite

Analog Devices has tendered an offer to acquire Hittite Microwave for about $2 billion to round out its extensive portfolio with microwave and millimeter wave solutions. Read More...

IMS2014: Learn those puzzling microwaves

French company elliptika had developed a teaching tool for learning about microwaves and passive components. Read More...

Rethink wireless architecture to make it elastic

The effort behind Open Networking Foundation (ONF) suggests that a big change is coming and operators will increasingly roll out more elastic, flexible systems. Read More...

Spectrum analyzer spans 6GHz for less than $3000

I spoke with SignalHound’s CEO Bruce Devine about the engineering challenges, applications, and successes of their real-time spectrum analyzer and RF recorder. Read More...

>> SEE ALL

01.14.2014

Use digital predistortion with envelope tracking

Here’s a look at the technical advantages and disadvantages of Digital Predistortion (DPD) in the RF front end of mobile handsets, as well as the Read more...

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