Low-Frequency Noise and Passive Imaging With 670 GHz HEMT Low-Noise Amplifiers

被引：23

作者：

Grossman, Erich N. ^{[1
]}

Leong, Kevin ^{[2
]}

Mei, Xiaobing ^{[2
]}

Deal, William ^{[2
]}

机构：

[1] Natl Inst Stand & Technol, Boulder, CO 80305 USA

[2] Northrop Grumman Corp, Redondo Beach, CA 90278 USA

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2014年 / 4卷 / 06期

关键词：

Imaging; passive; submillimeter (submm); terahertz (THz); 1/f-noise; HEMT; InP;

D O I：

10.1109/TTHZ.2014.2352035

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We combine newly developed InP HEMT amplifiers operating at 670 GHz with a zero-bias diode (ZBD) in order to investigate limits on passive imaging performance possible with fully uncooled, direct-detection technology. Noise-equivalent temperature difference (NETD) values under 2 K are found for reference conditions (30 Hz modulation). However, noise spectra continue to fall approximately as 1/f out to "knee" frequencies of several hundred hertz (Hz) and spectral densities of similar to 0.12 K/Hz(1/2) for the current, somewhat gain-starved, amplifiers. The amplifier alone contributes 0.043 K/Hz(1/2). These results indicate that modest-sized, rapidly scanned arrays should provide real-time, passive imaging-desired for standoff security screening and other applications-with the same image quality as cryogenic bolometer arrays.

引用

页码：749 / 752

页数：4

共 15 条

[1] Terahertz imaging with a direct detector based on superconducting tunnel junctions [J].

Ariyoshi, S ;

Otani, C ;

Dobroiu, A ;

Sato, H ;

Kawase, K ;

Shimizu, HM ;

Taino, T ;

Matsuo, H .

APPLIED PHYSICS LETTERS, 2006, 88 (20)

[2]

Becker D., 2011, P SOC PHOTO-OPT INS, V8022

[3] THz Imaging Radar for Standoff Personnel Screening [J].

Cooper, Ken B. ;

Dengler, Robert J. ;

Llombart, Nuria ;

Thomas, Bertrand ;

Chattopadhyay, Goutam ;

Siegel, Peter H. .

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, 2011, 1 (01) :169-182

[4] THz Monolithic Integrated Circuits Using InP High Electron Mobility Transistors [J].

Deal, William ;

Mei, X. B. ;

Leong, Kevin M. K. H. ;

Radisic, Vesna ;

Sarkozy, S. ;

Lai, Richard .

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, 2011, 1 (01) :25-32

[5] Low Noise Amplification at 0.67 THz Using 30 nm InP HEMTs [J].

Deal, William. R. ;

Leong, K. ;

Radisic, V. ;

Sarkozy, S. ;

Gorospe, B. ;

Lee, J. ;

Liu, P. H. ;

Yoshida, W. ;

Zhou, J. ;

Lange, M. ;

Lai, R. ;

Mei, X. B. .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2011, 21 (07) :368-370

[6] Aqueous blackbody calibration source for millimeter-wave/terahertz metrology [J].

Dietlein, Charles ;

Popovic, Zoya ;

Grossman, Erich N. .

APPLIED OPTICS, 2008, 47 (30) :5604-5615

[7] Passive terahertz camera for standoff security screening [J].

Grossman, Erich ;

Dietlein, Charles ;

Ala-Laurinaho, Juha ;

Leivo, Mikko ;

Gronberg, Leif ;

Gronholm, Markus ;

Lappalainen, Petteri ;

Rautiainen, Anssi ;

Tamminen, Aleksi ;

Luukanen, Arttu .

APPLIED OPTICS, 2010, 49 (19) :E106-E120

[8] Passive Submillimeter-wave Stand-off Video Camera for Security Applications [J].

Heinz, Erik ;

May, Torsten ;

Zieger, Gabriel ;

Born, Detlef ;

Anders, Solveig ;

Thorwirth, Guenter ;

Zakosarenko, Viatcheslav ;

Schubert, Marco ;

Krause, Torsten ;

Starkloff, Michael ;

Krueger, Andre ;

Schulz, Marco ;

Bauer, Frank ;

Meyer, Hans-Georg .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2010, 31 (11) :1355-1369

[9]

Luukanen A., 2012, P SOC PHOTO-OPT INS, V8362

[10] Passive millimeter-wave imaging module with preamplified zero-bias detection [J].

Lynch, Jonathan J. ;

Moyer, Harris P. ;

Schaffner, James H. ;

Royter, Yakov ;

Sokolich, Marko ;

Hughes, Brian ;

Yoon, Yeong J. ;

Schulman, Joel N. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2008, 56 (07) :1592-1600

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