Two-stage high gain W-band amplifier using metamorphic HEMT technology

Bok Hyung Lee, Dan-An, Mun Kyo Lee, Byeong Ok Lim, Sam Dong Kim, Jin Koo Rhee

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, we shows a W-band (75-110 GHz) application of metamorphic HEMTs (MHEMTs). We fabricated two stage MIMIC amplifier using 0.1 μm InGaAs/InAlAs/GaAs MHEMT technology. The performances of MHEMT show a drain current density (Idss) of 643 mA/mm, maximum transconductance (gm,max) of 650 mS/mm, the current gain cut-off frequency (ft) of 172 GHz and the maximum oscillation frequency (fmax) of 271 GHz. The W-band amplifier was designed using CPW line and non-linear model technologies. The measured results of the W-band MIMIC amplifiers show 821 gain of 10.1 dB, S11 of-5.1 dB and 822 of-5.2 dB at 100 GHz, respectively.

Original languageEnglish
Pages (from-to)39-42
Number of pages4
JournalInstitute of Physics Conference Series
Volume184
StatePublished - 2005
Event31st International Symposium of Compound Semiconductors 2004 - Seoul, Korea, Republic of
Duration: 12 Sep 200416 Dec 2004

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