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Alex Zamora
Researcher at Northrop Grumman Corporation
Publications - 10
Citations - 396
Alex Zamora is an academic researcher from Northrop Grumman Corporation. The author has contributed to research in topics: Radiometer & High-electron-mobility transistor. The author has an hindex of 5, co-authored 10 publications receiving 283 citations.
Papers
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Journal ArticleDOI
First Demonstration of Amplification at 1 THz Using 25-nm InP High Electron Mobility Transistor Process
Xiaobing Mei,W. Yoshida,M. Lange,J. Lee,Joe Zhou,Po-Hsin Liu,Kevin M. K. H. Leong,Alex Zamora,Jose G. Padilla,Stephen Sarkozy,Richard Lai,William R. Deal +11 more
TL;DR: In this article, the first terahertz integrated circuit amplifier based on 25-nm InP high electron mobility transistor (HEMT) process was demonstrated at 1 GHz with 9-dB measured gain at 1.5 GHz.
Journal ArticleDOI
A Low-Power 670-GHz InP HEMT Receiver
William R. Deal,Kevin M. K. H. Leong,Alex Zamora,W. Yoshida,M. Lange,Ben S. Gorospe,Khanh Nguyen,Gerry X. B. Mei +7 more
TL;DR: In this article, a 25-nm InP HEMT-based InP-based receiver for submillimeter wave (QoW) was presented, and the receiver obtains the lowest reported noise figure for a transistorbased receiver operating at this frequency (<10.3 dB), while consuming a total dc power of only 1.8 W.
Proceedings ArticleDOI
CubeSat scale receivers for measurement of ice in clouds
Pekka Kangaslahti,Erich Schlecht,Jonathan H. Jiang,William R. Deal,Alex Zamora,Kevin M. K. H. Leong,Steven C. Reising,Xavier Bosch,Mehmet Ogut +8 more
TL;DR: In this article, a set of Indium Phosphide (InP) MMICs for receivers at 240, 310, 380 and 670 GHz with significantly lower noise than previously reported.
Proceedings ArticleDOI
Tropospheric water and cloud ICE (TWICE) millimeter and submillimeter-wave radiometer instrument for 6U-Class nanosatellites
Steven C. Reising,Pekka Kangaslahti,Erich Schlecht,Jonathan H. Jiang,Xavier Bosch-Lluis,Mehmet Ogut,Yuriy Goncharenko,Sharmila Padmanabhan,R. E. Cofield,Nacer Chahat,Shannon Brown,William R. Deal,Alex Zamora,Kevin M. K. H. Leong,Sean Shih,Gerry Mei +15 more
TL;DR: InP MMIC technology has been scaled to 25-nm gate length transistors, enabling demonstration of low-noise amplifiers with sufficient gain at frequencies up to 1 THz as discussed by the authors.
Journal ArticleDOI
A 670 GHz Integrated InP HEMT Direct-Detection Receiver for the Tropospheric Water and Cloud Ice Instrument
Caitlyn M. Cooke,Kevin M. K. H. Leong,Alex Zamora,Ben S. Gorospe,Gerry X. B. Mei,Pekka Kangaslahti,Erich Schlecht,Mehmet Ogut,Yuriy Goncharenko,Steven C. Reising,William R. Deal +10 more
TL;DR: In this paper, a transistor-based direct-detection receiver for submillimeter-wave applications is presented, which exhibits a noise figure of 11.4 dB with a total dc power consumption of 0.25 W.