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Dear Sir/Madam
The future is wireless – wires are old fashion. This is the
impression which comes to mind when you look at the actual
developments in the electronic industry. Mobile phones, GPS
systems, RFID tags, multimedia devices and games and even the
appliances in the home – everything is connected wireless. To
update you for the future – here you´ll find some news about
developments in wireless applications.
Wolfgang
Patelay
Technical
Editor, EPN
868/870MHz Radio Modem (Adeunis)
Adeunis launched a compact radio module capable of supporting a
two-way digital link over a range of 1.5km. The module
integrates a digital radio transceiver, a microcontroller, a
dedicated firmware and an antenna. The pre-certified
module-modem can be used without a license; it works on the
868/870MHz band (863/870MHz soon).
Click here
3-Axis Analogue
Front End (Microchip)
A stand-alone analogue front-end device for smart,
low-frequency (125kHz typical) sense-and-response applications, the
MCP2030 can be used alongside any of Microchip's PIC
microcontrollers in a range of low-cost passive-access, intelligent
transponder and smart sensing applications.
Click here
WLAN
Chip (Marvell)
The 88W8686 is a 90nm WLAN single-chip solution which
draws less than 400mW, and which is contained within a footprint of
less than 50 mm2. This consumer-grade, embedded wireless
product is suitable for gaming, single- and dual-mode mobile
handsets, PDAs, digital cameras, MP3 players, and printing
platforms.
Click here
GPS
Chip Antenna (Taiyo Yuden)
Taiyo Yuden announced the launch of an ultra-small
ceramic chip antenna (11.0x1.6x1.6mm) to be used in GPS devices
mounted in cell phones. In developing the AF116M157502 product, the
company applied the ceramic-chip-antenna technology that offers a
unique configuration based on inhouse production technology
involving ceramic process and wire-winding technologies.
Click here
RF-interference-design considerations for portable-device
batteries
Today's use of ever smaller yet more complex batteries in
mobile-communications applications requires designers to use
advanced design techniques to protect batteries from RFI. Users
must consider a number of phenomena and design issues to ensure
that their designs conform to both RF and
battery-management-system parameters. Which ones are described
by Macwien
Krishnamurthi and Ahmad Kamal Shamsuri from Motorola in their
feature article in EDN.
Click here
Mobile applications challenge test-and-measurement tools
Kris
Utermark from Tektronix explains in his feature article in EDN how advances
in probing and triggering and in simultaneously monitoring multiple
buses - including high-speed serial buses - are adapting logic
analyzers to the world of fast, low-power mobile applications.
Click here
Low-power, super-regenerative receiver targets 433-MHz ISM band
Designers often choose a super-regenerative receiver - despite
its frequency instability and poor selectivity - for
battery-powered, short-range, wireless applications in which
power consumption is a major issue. This Design Idea from
Cedric Mélange,
Johan Bauwelinck, and Jan Vandewege
presents a super-regenerative receiver that overcomes these
disadvantages, consumes less than 1mW, and operates in the
license-free, 433-MHz ISM (industrial/scientific/medical) band.
Click here
CMOS
inverters convert RF to digital signal
Applications ranging from frequency counting and synthesis to sensor
signal conditioning require conversion of RF signals to
digital-logic levels. For frequencies as high as 180 MHz, the
circuit described in the Design Idea from
Francis Rodes,
Eliane Garnier, and Guillaume Zingone
offers an attractive approach.
Click here
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4| Market Research |
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Wi-Fi Chipset Market Continues Impressive Growth
The Wireless LAN (WLAN) chipset market is on a phenomenal growth
pace that is projected to continue over the next few years. The
market will soar from just over 140 million annual chipset unit
shipments in 2005 to 430 million in 2009, reports In-Stat. In
2005, growth was driven primarily by mobile PCs, home/SOHO
wireless routers and residential gateways, and external clients.
The market has been driven primarily by traditional networking
devices over the last five years, as well as embedded Wi-Fi in
mobile PCs. But the market is shifting, as it will be
increasingly buoyed by new categories of devices such as
handheld games, gaming consoles, cell phones and printers.
Click here
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5| Book of the Month |
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Small Antenna Design, by Douglas Miron
As wireless devices and systems get both smaller and more
ubiquitous, the demand for effective but small antennas is
rapidly increasing. This book will describe the theory behind
effective small antenna design and give design techniques and
examples for small antennas for different operating frequencies.
Design techniques are given for the entire radio spectrum, from
a very hundred kHz to the GHz range.
Click here
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6| Competition |
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Win A WaveJet Series Portable Digital Oscilloscope
The 100mm deep WaveJet 300 Series is a line of low-cost,
small-form-factor, portable digital oscilloscopes. The series
comprises eight models (2 or 4 channels), covering the frequency
ranges of 100, 200, 350 and 500MHz, with up to 2Gsample/s
capability and 500 kpoints of memory on each channel. This long
memory provides a class-leading capture time of 250µs at maximum
sample rate. This month, Lecroy offers EPN readers the chance to
win one WJ334 (the 4-channel 350MHz WaveJet model).
Click here
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EPN and EDN Europe are members of the Reed Electronics Group
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France
Tel- +33 (0) 1 46 29 23 60
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