Presentation 2000/1/21
An AlGaAs Hetero MESFET with a Graded Pulse Doped Channel
K. Nakata, R. Sakamoto, T. Hashinaga, N. Kuwata, K. Otobe, S. Nakajima,
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Abstract(in English) High output power and high efficiency of FET is important for the base station of digital wireless communication systems. Then we have developed an AlGaAs hetero MESFET with a graded pulse doped channel. A graded pulse-doped channel that means active layer in which doping concentration increase exponentially toward buffer layer, improves output power at low quiescent drain current (Iq). At the condition of Iq=4%Idss, P1dB is increased by 9dB than our conventional MESFET. Breakdown voltage and gate leakage current are improved by insertion of AlGaAs-cap layer. The AlGaAs hetero MESFET shows high output power (540mW / mm) and high efficiency (η_=64%) at high drain bias voltage such as 12V.
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Keyword(in English) AlGaAs / MESFET / Digital wireless communication / Low distortion / 1dB compression point
Paper # ED99-280,MW99-204,ICD99-255
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Conference Date 2000/1/21(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) An AlGaAs Hetero MESFET with a Graded Pulse Doped Channel
Sub Title (in English)
Keyword(1) AlGaAs
Keyword(2) MESFET
Keyword(3) Digital wireless communication
Keyword(4) Low distortion
Keyword(5) 1dB compression point
1st Author's Name K. Nakata
1st Author's Affiliation Optoelectronics R&D Labs., Sumitomo Electric Industry, LTD()
2nd Author's Name R. Sakamoto
2nd Author's Affiliation Optoelectronics R&D Labs., Sumitomo Electric Industry, LTD
3rd Author's Name T. Hashinaga
3rd Author's Affiliation Optoelectronics R&D Labs., Sumitomo Electric Industry, LTD
4th Author's Name N. Kuwata
4th Author's Affiliation Optoelectronics R&D Labs., Sumitomo Electric Industry, LTD
5th Author's Name K. Otobe
5th Author's Affiliation Optoelectronics R&D Labs., Sumitomo Electric Industry, LTD
6th Author's Name S. Nakajima
6th Author's Affiliation Optoelectronics R&D Labs., Sumitomo Electric Industry, LTD
Date 2000/1/21
Paper # ED99-280,MW99-204,ICD99-255
Volume (vol) vol.99
Number (no) 561
Page pp.pp.-
#Pages 6
Date of Issue