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W-CDMA news and hot articles
2007-6-15 InGaP HBT vs. CMOS for mobile handset power amps
Selecting the right type of PA is one of the key decisions that can help achieve a compelling design that delivers a competitive advantage.
2007-5-18 China okays TD-SCDMA rival standards
The China Ministry of Information Industry (MII) approved May 16 the use of European and American 3G mobile phone standards, which rival the homegrown TD-SCDMA.
2007-1-16 Use rms sensors to measure comms power
This paper shows the various contributions that need to be taken into account in calculating the uncertainty budget when measuring power.
2006-11-13 DC/DCs for CDMA power amps include bypass FET
Maxim Integrated Products' new 2.5MHz DC/DC converters integrate a low-RDS bypass FET to minimize PCB area and extend battery lifetimes.
2006-11-1 Wireless broadband showcases emerging apps
The need for "communications-on-the-go" and its fulfillment will provide new opportunities as well as new lifestyle and work options, much of which will be enabled by the broadband wireless era.
2006-9-27 DC/DCs extend battery life in CDMA, WCDMA handsets
Semtech's new DC/DC step-down power converters improve battery life by providing adaptive power management for CDMA and WCDMA handsets.
2006-9-25 Radio network analyzers can scan several networks in parallel
The new radio network analyzers from Rohde & Schwarz are suitable for use in different networks irrespective of the technology employed as well as for broadband applications in the frequency range from 80MHz up to 4GHz.
2006-9-1 MIMO tech for next-gen cellular systems
MIMO is the disruptive technology that will change the wireless industry's playing field over the next decade. Today, companies are maximizing the data rate, coverage and spectral efficiency benefits that MIMO OFDM provides.
2006-8-23 148 million EDGE units to be shipped in 2006, predicts ABI
Considered as a niche market, the share of EDGE handsets now accounts for 14 percent of the mobile phone market, according to a report released by ABI Research. The report predicts that 148 million EDGE units will be shipped within this year.
2006-7-14 DC/DC converter targets WCDMA, CDMA handsets
AnalogicTech has announced the AAT1171, a new voltage-scaling DC/DC step-down converter designed to control power to the power amplifier in WCDMA and CDMA handsets.
2006-4-10 Solution for 3G, WiMAX base stations suits Freescale RF transistors
TelASIC announced the availability of transmit subsystems for HSDPA/W-CDMA, EVDO/CDMA2000 and WiMAX base station radios.
2006-3-1 Implications of HSPDA in 3G handset design
While there has been much debate on HSDPA's advantages, little has been said about its implications on handset design.
2006-1-27 RF signal generator will be LXI-compliant
Keithley Instruments Inc. is introducing a new LXI (LAN eXtensions for Instrumentation) RF signal generator, and is pre-announcing some related RF test gear that will debut later this year.
2006-1-26 LG profit soars despite lower sales
LG Electronics reported lower fourth-quarter total sales from a year earlier due mainly to a strong local currency and expenditures for expanding overseas production.
2005-12-1 New ST solution targets picocell basestation modems
ST unveiled what it touts as the industry's most comprehensive solution for picocell basestation modems. ST's offering combines the performance of its STW5100 SoC baseband processor with multi-standard software libraries.
2005-11-29 RFMD expands POLARIS shipments into EDGE handsets
RF Micro Devices, Inc. (RFMD) today announced shipments of its POLARIS 2 TOTAL RADIO chipset into the Motorola V360 EDGE handset.
2005-11-1 Power amp biasing with digital dynamic bias chip
To compete in 3G base-station markets, power-amplifier OEMS need an adjustable bias that reduces cost and effectively manages LDMOS temp responses
2005-9-15 Anadigics' W-CDMA PAs extend battery life of mobile handsets
Anadigics Inc. unveiled three new W-CDMA power amplifiers (PAs) that promise industry-leading power efficiency to extend battery life in mobile handsets and W-CDMA-enabled notebook PC cards.
2005-9-1 Understanding HSDPA's implementation challenges
HSDPA promises to bridge the gap between 3G and Internet in delivering high-speed data access to many users in a cell
2005-7-13 Anadigics supplies 3G power amplifiers to UTStarcom
Anadigics Inc. is shipping production volumes of GSM/GPRS and W-CDMA power amplifiers (PAs) to UTStarcom Inc. for UTStarcom Inc.'s GW200 handset.
2005-6-6 RF power reduction for CDMA/W-CDMA cellular phones
This app note talks about RF power amplifier in a CDMA/WCDMA cellular phone.
2005-6-1 Sampled systems and the effects of clock phase noise and jitter
This app note explains many of the trade-offs related to jitter, phase noise, and converter performance
2005-6-1 Separate vs. integrated smart-phone components
Only by weighing the trade-offs can a designer arrive at the best possible wireless-appliance solution for a specific design requirement
2005-5-6 DSP chip shipments down in Q1, says analyst
After growing 27.2 percent in 2004, DSP chip shipments declined in the first quarter of 2005 compared with the fourth quarter of 2004, according to market research organization Forward Concepts.
2005-4-26 Ericsson wins 3G contract with VIBO Telecom in Taiwan
Ericsson has strengthened its 3G position in Taiwan by signing a contract with W-CDMA operator VIBO Telecom.
2005-4-19 Chipset supports entry-level wireless handsets
Qualcomm announced sampling of the MSM6225, its value platform chipset, to support entry-level and data-centric devices for emerging W-CDMA (UMTS) markets.
2005-3-25 W-CDMA chipset to support HSDPA
Qualcomm is developing the Mobile Station Modem MSM6260 chipset and system software solution for W-CDMA/High Speed Downlink Packet Access and GSM/GPRS/EDGE (EGPRS).
2005-3-21 Pre-driver PAs power cellular base stations
RFMD's two new GaAs HBT pre-driver PAs are designed to lower the total cost of implementation for manufacturers of cellular base stations.
2005-3-1 CMOS transceiver key component for next-gen cellphones
Take a closer look at a commercial CMOS transceiver and the viability it offers for high-volume wireless products.
2005-2-28 W-CDMA PA modules reduce power consumption by 50 percent
Anadigics unveiled a new family of 4-by-4mm HELP W-CDMA PA modules that use the company's proprietary mode switching techniques.
2005-2-28 RFMD opens design center in France
RF Micro Devices has opened a customer support and design center in Toulouse, France.
2005-2-21 World's 'smallest linear PA module' includes on-chip power detector
RFMD's new RF5198 module is touted to be the world's smallest linear PA module to include an on-chip power detector.
2005-2-11 Ericsson obtains 3G expansion contract in Taiwan
Taiwan operator Far EasTone Telecommunications and its subsidiary Yuan-Ze have selected Ericsson as the supplier for its W-CDMA network expansion in Taiwan.
2005-2-11 RFMD opens design center in France
RF Micro Devices Inc. (RFMD) has announced the opening of a new customer support and design center in Toulouse, France.
2005-2-3 Skyworks integrates StarCore's Processor in baseband platforms
Skyworks Solutions Inc. will utilize StarCore's technology for deployment in its GPRS, EDGE and W-CDMA baseband platforms.
2005-1-26 Qualcomm W-CDMA chipset supports HSDPA
Qualcomm disclosed the on-time sampling of its MSM MSM6275 chipset for W-CDMA with support for HSDPA, a next-gen feature of the W-CDMA standard and GSM/GPRS/EDGE.
2005-1-24 Nortel, Chinese company to establish joint 3G venture
Nortel Networks Corp. and China Putian Corp. have announced they would establish a joint venture for research and development, manufacture and sale of third generation mobile telecommunications equipment and products to customers in China.
2005-1-17 Enhancing 3G handheld radios with smart antennas
Smart antennas hold the promise of providing significant performance improvement in 3G handheld radios.
2004-12-16 Timing synchronization for 3G wireless
GPS forms the foundation of a reliable clock distribution in wireless networks.
2004-11-23 LNA for W-CDMA (UMTS) features gain step
This app note presents the MAX2645 SiGe low-noise amplifier (LNA) that features a 25dB gain step, shutdown mode, and adjustable IP3.
2004-11-1 FPGA co-processors optimize car infotainment, telematics
As entertainment electronics becomes a primary source of differentiation among luxury vehicles, carmakers can rev up their designs with FPGA co-processing.
2004-10-1 Testing W-CDMA user equipment with RMC
Reference measurement channel provides a means to analyze areas of receiver performance in the RF domain.
2003-6-2 Network analyzer improves yield, reduces test cost
With MVNA technology integrated into ATE, testing is more representative to the real-world conditions, minimizing the risk of defect components finding their way into end-products.
2003-2-3 Oscilloscopes for CDMA RF wireless signal analysis
Analysis and capture of the full band of ultra high-frequency RF signals with oscilloscopes is now possible due to the rapid performance advancements in real time oscilloscope technology.
2003-1-16 2.5G/3G market ushers new mobile architecture
To meet the diverse needs of 2.5 and 3G, a scaleable, open architecture is needed in portable design.
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