Printer Friendly
The Free Library
14,380,416 articles and books
Member login
User name  
Password 
 
Join us Forgot password?

WJ Communications Launches 4W 28V InGaP HBT (GaAs) Power Amplifier Modules for WCDMA Infrastructure Applications.


Ideal Solution for the Pre-Driver and Driver Stages in WCDMA (Wideband CDMA) A 3G high-speed digital data service provided by cellular carriers that use the TDMA or GSM technology worldwide, including AT&T (formerly Cingular) and T-Mobile in the U.S.  Infrastructure Equipment

SAN JOSE, Calif. -- WJ Communications, Inc. (NASDAQ NASDAQ
 in full National Association of Securities Dealers Automated Quotations

U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on
:WJCI WJCI WJ Communications, Inc ), a leading designer and supplier of radio frequency (RF) products and solutions for the wireless infrastructure and radio frequency identification See RFID.  (RFID (Radio Frequency IDentification) A data collection technology that uses electronic tags for storing data. The tag, also known as an "electronic label," "transponder" or "code plate," is made up of an RFID chip attached to an antenna. ) reader markets, today announced its AP622, a 4W power amplifier module for WCDMA infrastructure systems. This new product builds upon the successful WJ Communications AP60x family of 28V InGaP/GaAs HBT HBT Heterojunction Bipolar Transistor
HBT HyCult Biotechnology (Uden, The Netherlands)
HBT Hanbury-Brown-Twiss (interferometer)
HBT Herring Bone Twill
HBT Heflex Bioengineering Test
 power amplifiers. The AP622, a highly integrated 2-stage power amplifier, is ideal for the pre-driver and driver stages in WCDMA base stations and power amplifier modules, and the output stage in repeaters. It represents the next generation power amplifiers developed by WJ Communications to support the market needs for an integrated product that provides outstanding performance.

"The AP622 reiterates our commitment to delivering high-performance, cost-effective solutions for the next generation wireless infrastructure. This product along with the recently launched AP60x series, demonstrate our expertise in RF power amplifier An RF power amplifier is a type of electronic amplifier used to convert a low-power radio-frequency signal into a larger signal of significant power, typically for driving the antenna of a transmitter.  design as well as InGaP HBT (GaAs) process technology," said Haresh Patel, SVP SVP S'il Vous Plaît (French: Please)
SVP Senior Vice President
SVP Schweizerische Volkspartei (Swiss People~s Party)
SVP Society of Vertebrate Paleontology
SVP Social Venture Partners
SVP St Vincent de Paul
 Sales and Marketing at WJ Communications. "The AP622 offers extraordinary linearity performance and adjustable quiescent bias providing designers the flexibility to meet challenging system requirements."

Product Overview

The AP622 is a two-stage power amplifier module operating from 2110 to 2170MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc.  and housed in a small, RoHS-compliant, 13 x 29 x 4.1mm flange flange (flanj) a projecting border or edge; in dentistry, that part of the denture base which extends from around the embedded teeth to the border of the denture.

flange
n.
1.
 mount package. Furthermore, the AP622 module has a P1dB of 35dBm, 28dB of power gain and ACLR ACLR American Criminal Law Review (Georgetown University Law Center publication)
ACLR Adjacent Channel Leakage Power Ratio
ACLR Anterior Cruciate Ligament Reconstruction
ACLR Amateur Cross Link Repeater
ACLR Athlétic Club La Roche
 of -55dBc at 23dBm power output for WCDMA applications and operates from a +28V supply at 130mA operating current when configured for class AB operation.

Value Proposition

Responding to market and customers' demands for a highly integrated power amplifier module, the AP622 reflects these inputs while lowering the overall total cost of ownership and maintaining the superior performance of the AP60x family at the same time. By leveraging WJ's expertise with the AP500 series combined with the market leading AP60x products, the AP622 module embodies the requirements for high linearity, high power gain, low operating current, 28V supply voltage, and design flexibility encapsulated in a single package. The AP622 module incorporates the same features as the AP60x products including the active bias circuitry to achieve improved linearity performance and adjustable quiescent bias, meanwhile, provide design flexibility for demanding system requirements. A unique feature of the AP622 power amplifier module is the fully matched 50O input and outputs to simplify the design and PCB PCB: see polychlorinated biphenyl.
PCB
 in full polychlorinated biphenyl

Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound.
 layout for wireless infrastructure equipment designs. More importantly, it enables designers to "plug and play" the module into their system designs thus reducing the implement time and resources.

The following are AP622 power amplifier module key features:
    -- High Linearity
        -- Provides excellent linearity which rapidly improves below
           -50dBc as power is backed-off
    -- Integrated Active Bias Circuitry
        -- Compensates for variations in linearity and current draw
           over temperature
        -- Competing LDMOS solutions require external bias circuitry
           which increases costs and PCB space
    -- Adjustable Quiescent Bias
        -- Enables designer to adjust quiescent bias pin on AP62x
           products to configure for better linearity, higher
           efficiency or a combination of the two
    -- High Voltage Supply
        -- Useable over 24V to 32V supply range
        -- Operates off the same voltage supply as final stage power
           amplifier
        -- Reduces component count - no switching regulators and
           supporting components are needed thus reducing costs and
           PCB space
    -- Simplifies PCB Layout
        -- Fully matched 50O input and output - simplifies design
           and PCB layout
        -- Enables "plug and play" into new designs - reduces
           resources and time to implement solution


WJ Product Evolution

WJ Communications is committed to expanding and evolving its power amplifier product portfolio to support customers' requirements. The need for higher power products and market demands has encouraged WJ Communications to develop a 7W power amplifier module for the WCDMA space and future power amplifiers with power levels greater than 7W.

Availability & Pricing

For pricing information, please contact local WJ sales representative at sales@wj.com or 408-577-6200.

About WJ Communications

WJ Communications, Inc. is a leading provider of radio frequency (RF) solutions serving multiple markets targeting wireless communications, RF identification (RFID), WiMAX, and RF power solutions. WJ addresses the RF challenges in these multiple markets with its highly reliable amplifiers, mixers, RF integrated circuits (RFICs), RFID reader modules, chipsets, and multi-chip (MCM (MultiChip Module or MicroChip Module) A chip package that contains several bare chips mounted close together on a substrate (base) of some kind. ) modules. For more information visit www.wj.com or call 408-577-6200.

All trademarks used, referenced, or implicitly contained herein are used in good faith and highlighted to give proper public recognition to their respective owners.
COPYRIGHT 2006 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

 Reader Opinion

Title:

Comment:



 

Article Details
Printer friendly Cite/link Email Feedback
Publication:Business Wire
Date:Dec 18, 2006
Words:737
Previous Article:Ralink Technology, Corp. Announces Industry's Longest Range Draft-802.11n Wi-Fi Chipset.
Next Article:Nexsan Finds Itself in a 'Magic' Position.
Topics:



Related Articles
WJ Communications New HBT Amplifier Family Targets Medium Power Market; Five New Models for Wireless Transceiver Line Cards & RF Power Amplifiers.
WJ Communications Expands InGaP HBT Amplifier Line with High Performance; OEMs Gain Greater Cost-Savings and High Linearity.
WJ Communications Introduces New Line of Highly Linear 12 V Power Amplifier Modules; Targeted for 2.5 and 3G Cellular Base Station Applications.
WJ to Showcase Its Latest Products at MTT-S 2005; Long Beach Convention Center -- Long Beach, CA, June 14-16, 2005.
WJ Communications Introduces 10W Power Amplifier Module for Wireless Infrastructure Applications; ECM178 Amplifier Offers Excellent Linearity and...
Kopin's New Generation of GAIN-HBT Wafers Enters Initial Volume Production.
RFMD(R) To Showcase Industry-Leading Wireless Solutions At 3GSM World Congress 2006.
TriQuint Announces Quad-Band Polar GSM / EDGE Power Amplifier Module Optimized for Operation With Qualcomm(R) Multimode Chipsets.
WJ Communications Launches Industry's First 28V InGaP HBT (GaAs) Power Amplifiers for 3G Wireless Infrastructure Applications.
WJ Communications Introduces New Family of High-Linearity and Low-Current Amplifiers for Broadband RF and IF Applications.

Terms of use | Copyright © 2009 Farlex, Inc. | Feedback | For webmasters | Submit articles