Presentation 2007/6/18
A 24-GHz pHEMT High-Gain Power Amplifier
Bonhoon KOO, Changkun PARK, Songcheol HONG,
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Abstract(in English) A 24-GHz differential power amplifier is designed with 0.25μm pHEMT process. The power amplifier achieved P1dB of 28dBm. The measured linear gain is about 25dB at the 23.1GHz. The chip size is only 1.2×2.1mm^2. Generally, many pHEMT power amplifiers have been reported, which are based on current combining technique. Recently, the voltage combining technique has been presented for power amplifiers with watt-level output power. In this work, a tournament-shaped power combiner is applied to design 24-GHz pHEMT which utilizes the voltage combining technique. We believe that the tournament-shaped power combiner is the solution of mm-wave power amplifier, since one can produce high power with low breakdown voltage devices. We got the higher gain and output power density per chip area than the previous works. This shows the feasibility of the tournament-shaped power combiner for the mm-wave power amplifier successfully.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Compact / mm-wave / pHEMT / Power Amplifier / Power Combiner / Transmission Line Transformer
Paper # ED2007-64,SDM2007-69
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Committee ED
Conference Date 2007/6/18(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A 24-GHz pHEMT High-Gain Power Amplifier
Sub Title (in English)
Keyword(1) Compact
Keyword(2) mm-wave
Keyword(3) pHEMT
Keyword(4) Power Amplifier
Keyword(5) Power Combiner
Keyword(6) Transmission Line Transformer
1st Author's Name Bonhoon KOO
1st Author's Affiliation School of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology()
2nd Author's Name Changkun PARK
2nd Author's Affiliation School of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology
3rd Author's Name Songcheol HONG
3rd Author's Affiliation School of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology
Date 2007/6/18
Paper # ED2007-64,SDM2007-69
Volume (vol) vol.107
Number (no) 110
Page pp.pp.-
#Pages 4
Date of Issue