6/24/2004 - Agilent Technologies Inc. (NYSE: A) announced the enhanced Linearizer DesignGuide, which speeds and simplifies wireless base station power amplifier development. The improved digital predistortion technique allows electronic design automation (EDA) software and test and measurement equipment to work together to verify power amplifier linearization, resulting in a quicker, more efficient process for RF designers.
Linearization is a technique that is applied to power amplifiers used in wireless base stations to prevent interference between mobile users while allowing for full-power operation at maximum efficiency. One of these linearization techniques, known as digital predistortion, is highly effective but requires significant design effort.
The Linearizer DesignGuide with digital predistortion provides preconfigured test setups and digital signal processing (DSP) algorithms, making it possible to quickly test the effectiveness of the linearization approach on the actual amplifier based on Agilent Advanced Design System (ADS) EDA software. The enhanced technique uses test and measurement equipment to create the electrical power amplifier conditions. Agilent ADS then implements linearization and corrects the amplifier input signal.
"Digital predistortion is becoming the method of choice for multicarrier wireless base stations, but it can be difficult to implement," said John Olah, applications manager at Agilent's EEsof EDA division. "Designers want to test the effectiveness of their approach before committing to a prototype. Our approach will help designers verify the linearization technique, avoiding unnecessary prototyping and saving development time."
ADS offers a complete set of system and circuit simulation technology and instrument links for RF and microwave design in a single, integrated design flow. Design libraries for many of the wireless standards now in use or under development are also available for use with ADS, ensuring compatibility of the digital predistortion development system with current applications and standards. Using ADS, the Linearizer DesignGuide and digital predistortion, engineers can connect candidate base station hardware and determine the optimum predistortion configuration for the hardware and its intended wireless standards.
More information about the digital predistortion enhancement to the Linearizer DesignGuide is available at www.agilent.com/find/eesof.
U.S. Pricing and Availability
The Linearizer DesignGuide for ADS is available for purchase with ADS 2003C and later releases. Agilent ADS 2003C is available now, with prices starting at approximately $8,400.
About Agilent Technologies
Agilent Technologies Inc. (NYSE: A) is a global technology leader in communications, electronics, life sciences and chemical analysis. The company's 28,000 employees serve customers in more than 110 countries. Agilent had net revenue of $6.1 billion in fiscal year 2003. Information about Agilent is available on the Web at www.agilent.com.
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