A.    Research Interests

(a)  System-on-chip (SOC) integrated Silicon-based CMOS/SiGe RF and millimeter-wave front-ends for high data rate (Gb/s) wireless body/personal area network (WBAN, WPAN) communication, high-efficiency/high-linearity power amplifier, digitally controlled transceiver front-end, phased-array multi-beam forming/nulling system, communication radar and sensors for detection applications ranging from disease control, hand-held medical scanners for bio-medical applications to portable weapon scanners for military applications.

(b)  New promising research area of Radio Frequency (RF) Nanotechnology an enabling area bridging the foundations of nanoscience and its wide band radio-frequency applications, through microwaves up to the optical range. Nanoelectronics offers the gateway to a new generation of highly integrated multifunctional devices, circuits and systems.

(c)   Developing integrated circuits and devices beyond millimeter-wave such as sub-millimeter wave and terahertz frequency region which promises a wide range of applications in engineering, science and medicine, such as detecting numerous diseases to inspecting food through its packaging.

(d)  Integrated circuits development in the area of microwave/millimeter-wave and optical wave interactions.

B.    Research Proposals and Funding

(a)  Title: "Reliability Studies of CMOS Radio Frequency Integrated Circuits (RFIC) for Ultra-Thin Flexible Packages", NextFlex/Uniqarta Inc.

Funding: $36,294 (PI), May'17~Dec'17

(b)  Title: "II-NEW: Probe Station to Characterize Body Area Network Sensor ICs for Cyber Physical Systems Applications", NSF

Funding: $362,865 (PI), Aug'16~Jul'19

(c)   Title: "Tunable Power Amplifier for Smart Phones", North Dakota Department of Commerce, Venture Grant Phase-I

Funding: $100,000 (PI), Jan'16~Dec'17

(d)  Title: "CMOS RFIC Development for Automatic Dependent Surveillance-Broadcast (ADS-B) Systems", Center of Research Excellence (CORE) Limited Deployment Cooperative Airspace Project: NDSU ADS-B Miniaturization Program

Funding: $94,544 (PI), Apr'13~Dec'15

(e)  Title: "CMOS Integrated Beam Former with Conformal Phased Array Antenna for Wireless Communications", ND NASA EPSCoR

Funding: $32,400 (PI), Oct'12~Dec'13

(f)   Title: "Ultra-compact ultra-low power wireless radio node for Body/Personal Area Networks", DARPA/STO

Funding: $250,000 (Co-PI), Apr'11~Jul'12

(g)  Title: "Broadband High Frequency Measurement Set-up, Design-kit Development for RFIC Design and Radio Architecture Planning", Samsung Electro Mechanics

Funding: $30,000 (PI), Aug'10~Jul'11

(h)  Title: "Multi-beam Beam Forming/Nulling Analog Pre-processor and Millimeter-Wave Highly Efficient Linearized Transmitter", DARPA LEAP Funding: Free tape-out opportunity in IBM 45nm SOI CMOS; equivalent to about $100,000 (Co-PI), Sept'09~Aug'10

C.   IC Characterization Set-up and Some Developed Silicon-based Radio Frequency Integrated Circuits (RFIC)

    RFIC Characterization Set-up at North Dakota State University

           CMOS ADS-B Transmitter                               CMOS ADS-B Power Amplifier

                  60GHz CMOS Switching PA                                     94GHz CMOS Switching PA

            2GHz CMOS Integrated Phase Shifter                              45GHz CMOS Vector Modulator

     45GHz High-Power/High-Efficiency CMOS VCO              45GHz CMOS Injection-Locked VCO

    45GHz CMOS LINC Transmitter                                       60GHz CMOS Linear PA

               60GHz SiGe Tunable PA                                           60GHz CMOS Transmitter