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Challenges of 2.5G to 10G Migration in Optical Networks

May 8, 2002 8:21 am | Comments

There are a number of challenges involved in moving from 2.5G to 10G networks, including cost of new equipment, technical issues, and the need to operate with existing infrastructure and preserving existing investment. Michael T. Moore, Cypress Semiconductor Over the years, the exponential growth of the Internet has been fuelled primarily by Internet Protocol (IP) traffic, creating an insatiable demand for bandwidth to carry this tra...

Base Station Testing Using a Spectrum Analyzer

May 8, 2002 8:20 am | Comments

The quality of service a wireless network operator can provide is dependent upon the performance of the base station. By Tom Rittenhouse, IFR Systems, Inc. The quality of service a wireless network operator can provide is heavily dependent upon the performance of the base station, a large portion of providing this quality depends upon the performance of the antenna and coaxial feeder connected to the base station....

CDMA Power Amplifier

May 6, 2002 12:03 pm | Comments

RF Micro Devices' RF6000-2 CDMA 50 power amplifier module is ideally suited for low-cost CDMA cellular transmitter applications and has been optimized for CDMA2000 1X. The miniature RF6000-2 is designed using RFMD's advanced third generation HBT process, which provides excellent ACPR, efficiency performance and minimum performance variation over temperature....

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CDMA Amplifier Module

May 6, 2002 12:03 pm | Comments

Ophir RF introduces Model 5302360, a 15 W, 3 FA CDMA power amplifier module available in several frequency bands, and operating from 28 V DC. Key features of this new module are higher efficiency (typically 15 - 18%) and 15 watts of mean CDMA power (CDMA signal peak to average ratio of 10....

HBT MMIC Power Amplifiers

May 6, 2002 12:03 pm | Comments

Hittite Microwave introduces a highly efficient family of Heterojunction Bipolar Transistor (HBT) MMIC Power Amplifiers, operating between 4.4 - 7.0 GHz with up to +29 dBm output power. These amplifiers are ideal for low cost UNII and HiperLAN applications from 5.0 - 6.0 GHz. The HMC415LP3 provides 20 dB of gain and +26 dBm of saturated power at 34% PAE from a +3....

Evacuated Miniature Crystal Oscillator

May 6, 2002 11:34 am | Comments

Vectron International has announced the introduction of its Evacuated Miniature Crystal Oscillator (EMXO™). The EX-380/385 series, low profile 4 Pin DIP EMXO is available at selected frequencies from 10 MHz to 80 MHz. The oscillators provide exceptionally low aging rates and high temperature stabilities in a small package over a wide range of environmental conditions....

SiGe Fabrication Process

May 6, 2002 10:49 am | Comments

A new, high-speed Silicon Germanium (SiGe) fabrication process has been brought online by Micrel. This new, 0.6 μm ASSET-2 SiGe process gives Micrel the necessary technology to move into the 10 Gbps communication space. Micrel's new GigaPro™ product line will address high-speed applications with data rates in excess of 10 Gbps....

RF LDMOS Devices

May 6, 2002 7:16 am | Comments

Motorola announced their next generation of RF LDMOS devices designed specifically for the 3G base station infrastructure market. Motorola's new fifth generation high voltage product family (HV5) continues to support the industry as service providers begin to deploy 3G W-CDMA and UMTS wireless systems....

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Diode Switch

May 6, 2002 7:16 am | Comments

Agilent Technologies introduced a new low-inductance wideband PIN-diode shunt switch offering industry-leading price and performance levels for applications up to 6 GHz, such as wireless LAN cards and radios. The Agilent HMPP-389T PIN-diode shunt switch combines low inductance, low capacitance and low package parasitics, increasing the maximum frequency at which silicon PIN diodes switches may be used....

Dual Channel Active Filter

May 6, 2002 7:16 am | Comments

Murata introduced an integrated dual-channel active filter device (tentative part number AF-9533) for 5 GHz 802.11a Wireless Local Area Network (WLAN) baseband filtering. Murata's dual-channel anti-aliasing filter utilizes a design concept that consolidates the many discrete components normally required to filter out frequencies above 9 MHz and unwanted and spurious noise into one miniature surface-mount device (9....

High Power RF Transistor

May 6, 2002 7:16 am | Comments

Motorola released its newest offering, the MRF9100. This device is a high power RF transistor in the industry that offers input matching via die integration, which provides additional space for the output matching at 900MHz. In a typical base station application, as the power increases, the input and output impedances of RF power transistors decrease, making the matching more difficult....

Power Adapter

May 6, 2002 7:16 am | Comments

Giving designers of OEM electronic equipment a robust adapter for applications requiring more than 100 W of power, Phihong provides its PSA150U power adapter. The PSA150U power adapter delivers up to 100 W of power with increased reliability, stability and overall lifetime of the power supply. PSA150U adapter's universal AC input range eliminates switching needs, and the device carries worldwide EMC compliance....

Low Cost Packaging

May 6, 2002 7:16 am | Comments

Aimed for high power transistors in the 1 to 6 GHz range, these plastic-free, low cost microwave packages offer the optimum combination of performance, reliability, and assembly costs. A variety of standard and custom packages, with power rating from 10 watts to 250 watts, are available in low cost, single and multi-up array formats....

Flexible Serial ATA Cable

May 6, 2002 7:16 am | Comments

Hitachi Cable Manchester (HCM) introduces its flexible Serial ATA cable. HCM's Serial ATA cable is built for Serial ATA drives and is designed to replace the current cables used with Ultra ATA 66 and 100 disk drive systems. The cable meets or exceeds all Serial ATA specifications. HCM's Serial ATA cable is available in 26 AWG and 30 AWG....

Low-Profile Switcher IC

May 6, 2002 7:16 am | Comments

Power Integrations announced the availability of a new low-profile through-hole assembly package option for its TOPSwitch-GX product. Nine new devices, ranging in power up to 290 watts, are now offered in the industry standard TO-262 package for applications that cannot accommodate a TO-220 package because of height restrictions....

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