NDLI: Independently controllable 3/sup rd/- and 5/sup th/-order analog predistortion linearizer for RF power amplifier in GSM

Content Provider	IEEE Xplore Digital Library
Author	Seung-Yup Lee Yong-Sub Lee Seng-Ho Hong Hyun-Sik Choi Yoon-Ha Jeong
Copyright Year	2004
Description	Author affiliation: Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., Kyungbuk, South Korea (Seung-Yup Lee; Yong-Sub Lee; Seng-Ho Hong; Hyun-Sik Choi; Yoon-Ha Jeong)
Abstract	An individually controllable 3/sup rd/-order intermodulation (IM3) and 5/sup th/-order intermodulation (IM5) predistortion linearizer for RF power amplifiers of band-type global system of mobile (GSM) repeaters is proposed. In order to effectively improve the linearity of RF power amplifiers, the IM3 and the IM5 powers are canceled by the predistortion circuit, which independently controls amplitude and phase of the IM3 and the IM5. The fabricated predistorter linearizes the power amplifier at 940 MHz. The IMD3 and the IMD5 suppressions of 30 dB and 26 dB, respectively, are achieved with an average power of 33 dBm for the GSM repeaters.
Sponsorship	IEEE Solid-State Circuit Soc. IEEE SSCS Region 10 Chapters
Starting Page	146
Ending Page	149
File Size	235392
Page Count	4
File Format	PDF
ISBN	078038637X
DOI	10.1109/APASIC.2004.1349432
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-08-05
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency GSM Circuits Power amplifiers Linearity Radiofrequency amplifiers Repeaters Control systems Frequency conversion Predistortion
Content Type	Text
Resource Type	Article

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