Predistorter linearizes CDMA power amplifiers
Article Abstract:
Spectrian Corp. of Sunnyvale, CA, offers a work-function-predistortion (WFP) technology that is capable of correcting nonlinearities in RF amplifiers in wide bandwidth systems such as broadband code-division multiple access (CDMA) and wireless local loop (WLL). WFP, which is one of the feedback methodologies used since the 1940s, offers two major advantages over other feedback techniques. WFP, which is under a patent filed by Spectrian, is less limited by bandwidth size compared to other methods and is used before the main amplifier-gain block, a location where insertion loss can be easily corrected.
Comment:
Offers a WFP technology that is capable of correcting nonlinearities in RF amplifiers in wide bandwidth systems
Publication Name: Microwaves & RF
Subject: Engineering and manufacturing industries
ISSN: 0745-2993
Year: 1998
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RF CMOS circuits target IMT-2000 applications
Article Abstract:
RF complementary-metal-oxide-semiconductor (CMOS) components are projected to be appropriate in the implementation of transceivers for the International Telecommunications Union's (ITU's) proposed international IMT-2000 wireless system. The development is expected in lieu of improvements in system-level architecture, circuit topologies and devices. Improved circuit-design innovativeness and creativity are required by CMOS components due to the technology's limited RF performance.
Comment:
RF CMOS components are seen as appropriate in implementation of transceivers for ITU's intnl IMT-2000 wireless sys
Publication Name: Microwaves & RF
Subject: Engineering and manufacturing industries
ISSN: 0745-2993
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
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