R
Richard Lai
Researcher at Northrop Grumman Corporation
Publications - 256
Citations - 5365
Richard Lai is an academic researcher from Northrop Grumman Corporation. The author has contributed to research in topics: Amplifier & Monolithic microwave integrated circuit. The author has an hindex of 36, co-authored 255 publications receiving 5095 citations. Previous affiliations of Richard Lai include TRW Inc. & Grumman Aircraft Corporation.
Papers
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Proceedings ArticleDOI
W-Band cryogenic InP MMIC LNAs with noise below 30K
Lorene Samoska,Mikko Varonen,R. Reeves,Kieran Cleary,Rohit Gawande,Pekka Kangaslahti,T. C. Gaier,Richard Lai,Stephen Sarkozy +8 more
TL;DR: In this paper, the authors describe two monolithic millimeter-wave integrated circuit (MMIC) low noise amplifiers (LNAs) for W-band which have a noise temperature of 30K or better over a wide bandwidth when cryogenically cooled.
Proceedings ArticleDOI
Cryogenic, X-band and Ka-band InP HEMT based LNAs for the Deep Space Network
J.J. Bautista,J.G. Bowen,N.E. Fernandez,Z. Fujiwara,J. Loreman,S. Petty,J.L. Prater,R. Grunbacher,Richard Lai,M. Nishimoto,M.R. Murti,J. Laskar +11 more
TL;DR: In this article, the authors present an overview of the development process of InP HEMT-based front-end amplifiers for the Deep Space Network (DSN) with emphasis on comparison between modeled and measured results at 8.4 GHz and 32 GHz.
Journal ArticleDOI
Physical identification of gate metal interdiffusion in GaAs PHEMTs
Y.C. Chou,Ronald W. Grundbacher,D. Leung,Richard Lai,Po-Hsin Liu,Q. Kan,M. Biedenbender,Michael Wojtowicz,D. Eng,A.K. Oki +9 more
TL;DR: In this article, the Ti metal interdiffusion of gate metal stacks in 0.15-/spl mu/m GaAs PHEMTs subjected to high-temperature accelerated lifetest has been physically identified using scanning transmission electron microscopy.
Proceedings ArticleDOI
MMIC power amplifiers as local oscillator drivers for FIRST
Lorene Samoska,Todd Gaier,Alejandro Peralta,Sander Weinreb,J. Bruston,Imran Mehdi,Y.C. Chen,Hsin Hsing Liao,M. Nishimoto,Richard Lai,Huei Wang,Y.C. Leong +11 more
TL;DR: In this article, the authors present the latest state-of-the-art results on 70 - 115 GHz Monolithic millimeter-wave Integrated Circuit power amplifier technology for the Heterodyne Instrument for the Far-Infrared and Sub- millimeter Telescope.
Proceedings ArticleDOI
A 330-GHz MMIC oscillator module
Vesna Radisic,Lorene Samoska,William R. Deal,X.B. Mei,W. Yoshida,P.H. Liu,J. Uyeda,Andy Fung,Todd Gaier,Richard Lai +9 more
TL;DR: In this paper, a 0.27 mW fundamental oscillator module operating at 330 GHz was presented, which is the first fundamental signal generation at submillimeter wave frequencies can be simply and reliably generated.