Presentation 2002/6/24
A Low Power Highly linear Cascoded Multiple Gated Transistor CMOS RF Amplifier with 10dB IP3 Improvement
Tae Wook Kim, Bonkee Kim, Ilku Nam, Beomkyu Ko, Kwyro Lee,
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Abstract(in English) A low power highly linear CMOS RF amplifier circuit composed of Multiple Gated common-source FET TRansistor (MGTR) in cascode configuration is reported. In MGTR amplifier, linearity is improved by using transconductance linearization which can be achieved with canceling the negative peak value of g_m'' of the main transistor with the positive one in auxiliary transistor having different size and gate drive combined in parallel. This enhancement, however, is limited by the distortion originated from the combined influence of g_m' and harmonic feedback, which can greatly be reduced by cascoding MGTR output. IP3 improvement as large as 10dB has been obtained from an experimental RF amplifier designed at 900 MHz and fabricated using 0.35μm BiCMOS technology using only CMOS at similar power consumption and gain as those obtainable from conventional cascode single gate transistor amplifier.
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Keyword(in English) MGTR / CMOS / nonlinearity / IP3
Paper # ED2002-123
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Committee ED
Conference Date 2002/6/24(1days)
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Registration To Electron Devices (ED)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Low Power Highly linear Cascoded Multiple Gated Transistor CMOS RF Amplifier with 10dB IP3 Improvement
Sub Title (in English)
Keyword(1) MGTR
Keyword(2) CMOS
Keyword(3) nonlinearity
Keyword(4) IP3
1st Author's Name Tae Wook Kim
1st Author's Affiliation Department of EECS, Korea Advanced Institute of Science and Technology()
2nd Author's Name Bonkee Kim
2nd Author's Affiliation RF Products, System LSI business, Semiconductor, Samsung Electronics
3rd Author's Name Ilku Nam
3rd Author's Affiliation Department of EECS, Korea Advanced Institute of Science and Technology
4th Author's Name Beomkyu Ko
4th Author's Affiliation Integrant Technologies
5th Author's Name Kwyro Lee
5th Author's Affiliation Department of EECS, Korea Advanced Institute of Science and Technology
Date 2002/6/24
Paper # ED2002-123
Volume (vol) vol.102
Number (no) 175
Page pp.pp.-
#Pages 4
Date of Issue