Presentation 2001/1/12
A Feedforward Amplifier with a Series Diode Linearizer
K. Horiguchi, M. Nakayama, Y. Sakai, K. Totani, H. Senda, Y. Ikeda, O. Ishida,
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Abstract(in English) A feedforward power amplifier (FFPA) with a series diode linearizer using a bias feed resistance is presented. To improve overall FFPA efficiency, a series diode linearizer is used to provide main amplifier linearization. FFPA efficuency optimization design considering FET effeciency and gain trade-off have been demonstrated. From measured overall performances of the FFPA, the efficiency enhancement of the series diode linearizer was shown. The developed FFPA achieved the high efficiency and output power of 10% and 45.6dBm at 10MHz offset ACLR-50dBc under W-CDMA 2 carriers signal.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) diode linearizer / feedforward / amplifier / efficiency / FET / W-CDMA
Paper # ED2000-237,MW2000-186,ICD2000-197
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Conference Date 2001/1/12(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Feedforward Amplifier with a Series Diode Linearizer
Sub Title (in English)
Keyword(1) diode linearizer
Keyword(2) feedforward
Keyword(3) amplifier
Keyword(4) efficiency
Keyword(5) FET
Keyword(6) W-CDMA
1st Author's Name K. Horiguchi
1st Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.()
2nd Author's Name M. Nakayama
2nd Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.
3rd Author's Name Y. Sakai
3rd Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.
4th Author's Name K. Totani
4th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.
5th Author's Name H. Senda
5th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.
6th Author's Name Y. Ikeda
6th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.
7th Author's Name O. Ishida
7th Author's Affiliation Information Technology R&D Center, Mitsubishi Electric Corp.
Date 2001/1/12
Paper # ED2000-237,MW2000-186,ICD2000-197
Volume (vol) vol.100
Number (no) 555
Page pp.pp.-
#Pages 6
Date of Issue