
Omeed Momeni
Ph.D. Candidate, Cornell University
Email: om53(at)cornell.edu
Address:
362 Duffield Hall
Cornell University
Ithaca, NY 14853
Phone: 607-255-4208
Omeed Momeni received the B.Sc. degree in Electrical Engineering from Isfahan University of Technology, Isfahan, Iran, in 2002 and the M.S. degree in Electrical Engineering from University of Southern California, Los Angeles, in 2006. He is currently working toward his Ph.D. degree at Cornell University.
From May 2004 to December 2006, he was with the National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory (JPL), to design L-band transceivers for synthetic aperture radars (SAR) and high power amplifiers for Mass Spectrometer applications. His research has been primarily focused on high performance terahertz and mm-wave circuits and components.
Awards and Honors
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Cornell ECE Best Ph.D. Thesis Award 2011
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Best paper award at the IEEE Workshop on Microwave Circuits 2010
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Cornell University Jacobs Fellowship 2009
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University of Southern California Research Fellowship 2006
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"Connection One NSF Research Center" Research Fellowship 2003
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NASA-Jet Propulsion Laboratory Summer Fellowship 2003
Research Projects
Fundamental Limitations of Circuit Architectures / High Power Terahertz Signal Generation
We have developed a theoretical framework for analyzing the fundamental frequency and power limitations of various circuit architectures and exploit the results to design novel circuits with significantly better performance. Broadly speaking, the main innovation in this work is the introduction of a systematic methodology for designing circuits operating at the limits of the transistors in any given process. This is achieved by blending device physics, circuit theory, and high frequency circuit design into a coherent technique. As an example, this method led to the implementation of a 482 GHz oscillator in a 65 nm CMOS process with an output power of 160 μW.
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O. Momeni and E. Afshari, "High Power Terahertz and Millimeter-Wave Oscillator Design: A Systematic Approach," IEEE Journal of Solid-State Circuits, Mar. 2011.
Novel Traveling-Wave Circuits for Extremely Wide Band Signal Generation
Inspired by the Doppler effect and using the traveling-wave properties, we proposed a novel wideband frequency multiplier that efficiently generates and combines the harmonics of the input signal. The implemented frequency doubler operates from 220 GHz to 275 GHz in a 65 nm CMOS process with an output power of -6.6 dBm at 244 GHz.
O. Momeni and E. Afshari, "A 220-to-275GHz Traveling-Wave Frequency Doubler with -6.6dBm Power at 244GHz in 65nm CMOS," IEEE Int'l Solid-State Circuits Conference (ISSCC), Feb. 2011.
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O. Momeni and E. Afshari, "A Broadband mm-Wave and Terahertz Traveling-Wave Frequency Multiplier on CMOS," IEEE Journal of Solid-State Circuits, Dec. 2011. (Invited)
Electrical Prism: A High Quality Factor Filter Using 2-D Electrical Lattices
A method to perform high performance signal processing using 2-D electrical lattices is introduced. Using the anisotropic behavior of these lattices, we proposed an Electrical Prism that can achieve a filtering quality factor which is orders of magnitude larger than the quality factor of the individual components in terahertz frequencies. an electrical prism with quality factor of 420 at 460 GHz consisting of elements with the quality factor 20 was presented.
O. Momeni and E. Afshari, "Electrical Prism: a High Quality Factor Filter for mm-Wave and Terahertz Frequencies," IEEE Transactions on Microwave Theory and Techniques, Nov. 2009.
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O. Momeni and E. Afshari, "Electrical Prism: a High Quality Factor Filter for mm-Wave and Terahertz Frequencies," Asia Pacific Microwave Conference (APMC), Dec. 2008.
High Speed Inductor-less TIA
A new technique to enhance the gain-bandwidth product of a transimpedance amplifier (TIA) without using any inductor was proposed. A 10-Gb/s TIA with an active area of only 0.06 mm2 was implemented for high speed parallel optical links for chip-to-chip and intra-chip interconnections.
O. Momeni, H. Hashemi and E. Afshari, "A 10-Gb/s Inductorless Transimpedance Amplifier," IEEE Transactions on Circuits and Systems II, Dec. 2010.
Publications
Journal Publications:
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O. Momeni and E. Afshari, "High Gain Terahertz and mm-Wave Amplifier Design: A Systematic Approach," to be submitted to IEEE Journal of Solid-State Circuits.
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W. Lee, M. Adnan, O. Momeni and E. Afshari, "A Nonlinear Lattice for High Amplitude, Picosecond Pulse Generation in CMOS," submitted to IEEE Transactions on Microwave Theory and Techniques.
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O. Momeni and E. Afshari, "A Broadband mm-Wave and Terahertz Traveling-Wave Frequency Multiplier on CMOS," IEEE Journal of Solid-State Circuits, Dec. 2011. (Invited)
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O. Momeni and E. Afshari, "High Power Terahertz and Millimeter-Wave Oscillator Design: A Systematic Approach," IEEE Journal of Solid-State Circuits, Mar. 2011.
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O. Momeni, H. Hashemi and E. Afshari, "A 10-Gb/s Inductorless Transimpedance Amplifier," IEEE Transactions on Circuits and Systems II, Dec. 2010.
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O. Momeni and E. Afshari, "Electrical Prism: a High Quality Factor Filter for mm-Wave and Terahertz Frequencies," IEEE Transactions on Microwave Theory and Techniques, Nov. 2009.
Conference Publications:
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O. Momeni and E. Afshari, "A High Gain 107 GHz Amplifier in 130 nm CMOS," Custom Integrated Circuit Conference (CICC), Sep. 2011.
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O. Momeni and E. Afshari, "A 220-to-275GHz Traveling-Wave Frequency Doubler with -6.6dBm Power at 244GHz in 65nm CMOS," IEEE Int'l Solid-State Circuits Conference (ISSCC), Feb. 2011.
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O. Momeni and E. Afshari, "Electrical Prism: a High Quality Factor Filter for mm-Wave and Terahertz Frequencies," Asia Pacific Microwave Conference (APMC), Dec.2008.
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O. Momeni, K. Sengupta and H. Hashemi, "Regenerative Frequency Divider with Synchronous Fractional Outputs," Radio Frequency Integrated circuits (RFIC) Symp., Jun. 2007.
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F. Aatouni, O. Momeni, H. Hashemi, "A Heterodyne Phase Locked Loop with GHz Acquisition Range for Coherent Locking of Semiconductor Lasers in 0.13 μm CMOS," Custom Integrated Circuit Conference (CICC), Sep. 2007.
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L. Najafizadeh, A. K. Sutton, B. Jun, J. D. Cressler, T. Vo, O. Momeni, M. Mojarradi, C. Ulaganathan, S. Chen, B. J. Blalock, Y. Yao, X. Yu, F. Dai, P. W. Marshall, and C. J. Marshall, "Radiation Response of SiGe BiCMOS Mixed-Signal Circuits Intended for Emerging Lunar Applications," European Conf. Radiation and Its Effects on Components and Systems (RADECS), Sep. 2007.
Patents
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O. Momeni and E. Afshari, "High Quality Factor Filter Design", patent pending.
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O. Momeni and E. Afshari, "Doppler-Inspired, High-Frequency Signal Generation and Up-Conversion", patent pending.
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O. Momeni and E. Afshari, "Terahertz and Millimeter-Wave Power Generation", patent pending.