Presentation 2000/1/21
W-CDMA 0.2cc HBT High-Efficiency Power Amplifier Module
N. Miyazawa, H. Itoh, T. Iwai, Y. Nakasha, T. Miyashita, S. Ohara, K.
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Abstract(in English) This paper describes 0.2cc HBT power amplifier module for W-CDMA systems which have been receiving lots of attention as the next generation mobile communication standard. The W-CDMA systems require lower adjacent channel leakage power than the 2nd generation systems such as PDC, IS-95, due to its high data transmission rate and tight space of the adjacent channel. With high performance InGaP / GaAs HBT (Heterojunction Bipolar Transistor) and a phase distortion cancellation technique between driver stage and power stage in a two-stage amplifier, the module achieved a high PAE of 40.2% and a low ACP of -40.8 dBc at a 28 dBm output power for W-CDMA modulation scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) W-CDMA / Handset / HBT / InGaP / Amplifier / Module / Phase distortion
Paper # ED99-285,MW99-209,ICD99-260
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Conference Date 2000/1/21(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) W-CDMA 0.2cc HBT High-Efficiency Power Amplifier Module
Sub Title (in English)
Keyword(1) W-CDMA
Keyword(2) Handset
Keyword(3) HBT
Keyword(4) InGaP
Keyword(5) Amplifier
Keyword(6) Module
Keyword(7) Phase distortion
1st Author's Name N. Miyazawa
1st Author's Affiliation Fujitsu Quantum Devices Ltd.()
2nd Author's Name H. Itoh
2nd Author's Affiliation Fujitsu Quantum Devices Ltd.
3rd Author's Name T. Iwai
3rd Author's Affiliation Fujitsu Laboratories Ltd.
4th Author's Name Y. Nakasha
4th Author's Affiliation Fujitsu Laboratories Ltd.
5th Author's Name T. Miyashita
5th Author's Affiliation Fujitsu Laboratories Ltd.
6th Author's Name S. Ohara
6th Author's Affiliation Fujitsu Laboratories Ltd.
7th Author's Name K.
7th Author's Affiliation Fujitsu Laboratories Ltd.
Date 2000/1/21
Paper # ED99-285,MW99-209,ICD99-260
Volume (vol) vol.99
Number (no) 561
Page pp.pp.-
#Pages 6
Date of Issue