We analyze, design and experimentally verify novel integrated devices, circuits and systems for a variety of RF and millimeter-wave applications, including wireless communication, radar and sensing.

Latest News

Columbia SEAS article about our research: Pushing the Performance of Silicon-based Systems

March 2013: DARPA issues a press release on Anandaroop and Ritesh's watt-class Q-band SOI CMOS world record power amplifier as one of the successes of the DARPA ELASTx program:
http://www.darpa.mil/NewsEvents/Releases/2013/03/26.aspx,
Feb 2013: Anandaroop has won the 2013 IEEE MTT-S Graduate Fellowship and will receive his award at the 2013 IEEE IMS in Seattle in June 2013.
Feb 2013: Ritesh and Anandaroop's paper on “Large-Scale Power-Combining and Linearization in Watt-Class mmWave CMOS Power Amplifiers,” is accepted to 2013 IEEE RFIC Symposium.
Feb 2013: Anandaroop's paper on "Design Considerations for Stacked Class-E-like mmWave High-Speed Power DACs in CMOS" is accepted to the 2013 IMS.
July 2012: CoSMIC Lab receives funding from the DARPA RF FPGA program to lead a large research effort on field-programmable full-duplex RF front ends in collaboration with Prof. Peter Kinget's group. (SEAS article)
July 2012: Akshay Shah wins the IEEE Microwave Theory and Techniques Society (MTT-S) 2012 Undergraduate-Pregraduate (BS/MS) scholarship , awarded bi-annually to 10 undergraduate students from across the world. (Read more)
June 2012: Two papers are accepted to 2012 IEEE CSICS - the first describes dual-output, stacked, class EE PAs at 45GHz with high output power and efficiency in 45nm SOI CMOS and is authored by Anandaroop and Jahnavi. The second describes a high-efficiency, compact, 5GHz Class E PA in 65nm CMOS utilizing transformer-based charging acceleration and is authored by Johnny Chen and Ritesh.
June 2012: Prof. Krishnaswamy presents the group's research on efficient, watt-class, mmWave PAs funded by the DARPA ELASTx program at an RFIC workshop titled "Towards Watt-Level mmWave Efficient Silicon Power Amplifiers".
June 2012: Anandaroop's paper on stacked, Class-E-like, mmWave PAs in 45nm SOI CMOS with record output power and efficiency performance is accepted to the 2012 IEEE CICC.
June 2012: Linxiao Zhang joins CoSMIC lab as a PhD student.
May 2012: Ritesh Bhat receives an EE MS Award of Excellence for his research and academic performance during his MS studies.
April 2012: The CoSMIC lab receives funding from the NSF to lead a research effort on integrated terahertz spectroscopy of bio-molecules in collaboration with the Bioelectronics Lab at Columbia.
February 2012: Jahnavi Sharma's paper on a 215GHz CMOS signal source based on a Maximum-Gain Ring Oscillator topology is accepted to the 2012 International Microwave Symposium.
January 2012: Mohammad Asgari joined the lab as a PhD student.
January 2012: Anandaroop Chakrabarti's paper on a new comprehensive analysis and design methodology for RF Class E PAs is accepted to ISCAS 2012.
September 2011: We are starting a large research effort on broadband linear RF front-ends for cognitive radio funded by the DARPA CLASIC program (Read more).
August 2011: Jeffrey Chuang joined the lab as a PhD student.
July 2011: Prof. Krishnaswamy receives a 2011 DARPA Young Faculty Award (DARPA release) (SEAS article).
January 2011: Ritesh Bhat joined the lab as a PhD student.
August 2010: Anandaroop Chakrabarti and Johnny Chen joined the lab as PhD students.
July 2010: We are starting a large research effort on efficient-yet-linear mmWave high-power PAs and transmitters funded by the DARPA ELASTx program.
October 2009: Prof. Krishnaswamy will present a paper titled “A 4-channel, 4-beam, 24-26GHz, spatio-temporal RAKE radar transceiver in 90nm CMOS for vehicular radar applications” at ISSCC 2010.
September 2009: Jahnavi Sharma joined the lab as its first PhD student.
May 2009: Prof. Krishnaswamy won the Best Thesis Award in the Experimental Research Category across the entire Viterbi School of Engineering at the University of Southern California.