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Wireless/Networking

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Carolyn Mathas
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.
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SAW, BAW and the future of wireless

A multi-band smartphone requires eight or nine filters and eight duplexers. Without acoustic filter technology, this would be impossible. Read More...

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DC power system boosts efficiency in remote wired and wireless telecom

The Flatpack S is a high-efficiency (HE) DC power system by Eltek that combines support for 100A in an extremely compact one rack unit (1RU) form factor and enables telecom carriers to broaden the reach of communication networks. Read More...

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First 5 GHz CCX certified Wi-Fi RTLS tag and location system available

A comprehensive set of RTLS hardware and system components including the industry’s first 2.4 GHz and 5 GHz dual-band Cisco Compatible Extensions (CCX) certified RTLS tag was unveiled by Redpine Signals. Read More...

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Is M2M Dead?

At the Telecom Council Mobile Forum M2M Workshop last week, Allen Proithis, Executive Vice President, InterDigital Solutions, presented a keynote address. The Topic: M2M is DEAD—Long Live IoT! Read More...

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S1600 1394b at 1.6 Gb/s bandwidth spurs imaging and Instrumentation app growth

The introduction of S1600 1394b enables higher resolution industrial cameras or cameras for industrial imaging with significantly higher frame rates, driving higher speeds. The advantages are critical to improving industrial efficiency and capability—but that’s not all it’s enabling. Read More...

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Cryptography and Network Security—The basics—Part I

This book provides a practical survey of both the principles and practice of cryptography and network security. The basic issues are explored through a tutorial and survey of cryptography and network security technology. This excerpt is from Chapter 1 of the text. Read More...

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High-performance X-COM system records, analyzes RF spectrum

X-COM released its IQC5000A Series RF Spectrum Capture and Playback System and complimentary Spectro-X Software 4.0 for finding signals of interest in complex spectral environments. Read More...

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Fluke Networks improves network analysis tablet

Fluke upgrades OptiView XG and releases new iPhone app to test network quality Read More...

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Wireless platform enables smart lighting systems

Based on its 88EM8511 AC/DC controller and wireless microcontroller embedded inside a smart LED bulb, Marvell’s Smart Bulb Residential Wireless Platform offers manufacturers an end-to-end solution for developing smart lighting systems that adhere to Energy Star requirements. Read More...

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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...

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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...

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...

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MAX11156 beyond-the-rails 18 bit, 500 ksps SAR ADC

Maxim Integrated has developed an ADC that can solve the high dynamic range coupled with “zero” clock latency for real-time applications, fast digital control loops and multi-channel data acquisition using one ADC. Read More...

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TI ZigBee single-chip solution with ARM Cortex-M3 MCU

Texas Instruments added a highly integrated SoC to its Zigbee product line that will help designers cut their time to market in ZigBee® wireless connectivity-enabled smart energy infrastructure, home and building automation and intelligent lighting gateways Read More...

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Microchip latest Bluetooth, Wi-Fi and ZigBee Products

Microchip Technology Inc., announced a major expansion of its embedded-wireless portfolio from the DESIGN West/Embedded Systems Conference in San Jose. Read More...

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DC power system boosts efficiency in remote wired and wireless telecom

The Flatpack S is a high-efficiency (HE) DC power system by Eltek that combines support for 100A in an extremely compact one rack unit (1RU) form factor and enables telecom carriers to broaden the reach of communication networks. Read More...

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Pericom aims timing products at mobility platforms

A family of temperature Compensated Crystal Oscillators (TCXO), by Pericom Semiconductor, many with added Voltage Controlled options (VCTCXO) deliver excellent performance, small size, low power, and value to mobility platforms. Read More...

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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...

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...

Dropped call: breaking down a broken cell phone

Split in two and abandoned by the roadside, a cell phone gives up its miniaturization secrets. Read More...

Transmitting from space

A discarded Russian Orlan space suit serves one last mission to increase awareness of the international space program. Read More...

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SAW, BAW and the future of wireless

A multi-band smartphone requires eight or nine filters and eight duplexers. Without acoustic filter technology, this would be impossible. Read More...

image

S1600 1394b at 1.6 Gb/s bandwidth spurs imaging and Instrumentation app growth

The introduction of S1600 1394b enables higher resolution industrial cameras or cameras for industrial imaging with significantly higher frame rates, driving higher speeds. The advantages are critical to improving industrial efficiency and capability—but that’s not all it’s enabling. Read More...

image

Cryptography and Network Security—The basics—Part I

This book provides a practical survey of both the principles and practice of cryptography and network security. The basic issues are explored through a tutorial and survey of cryptography and network security technology. This excerpt is from Chapter 1 of the text. Read More...

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Case study: Designing a universal software defined radio platform

Until recently SDR technology was reserved mostly for enthusiasts and the military, but many experts believe that this technology will become a new standard for the telecommunications market. Read More...

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Narrowband Powerline Communication—Applications and Challenges—Part II

Here is Part II of an article series that provides an overview of the state of the art and trends in narrowband PLC. Topics include basic modulation principles, characteristics of power lines, applicable regulations, typical applications and implementation challenges. Read More...

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Narrowband Powerline Communication--Applications and Challenges—Part I

This article gives an overview of the state of the art and trends in narrowband PLC. Topics include basic modulation principles, characteristics of power lines, applicable regulations, typical applications and implementation challenges. Read More...

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Three things they should have taught in Engineering 101, Part 3: Learn an intuitive approach

Part three of an excerpt from the book "Electrical Engineering 101, Third Edition" discusses how to develop the skill of intuitive signal analysis. Read More...

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