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Lyles College of Engineering

Nusrat Jahan

Assistant Professor

Electrical and Computer Engineering

nusratjahan@csufresno.edu

Education

  • Ph.D., Electrical and Electronic Engineering, Kyushu University, Japan, 2019
  • M.Sc., Electrical and Electronic Engineering, Kyushu University, Graduate School of Information Science and Electrical Engineering (ISEE), Fukuoka, Japan, 2016
  • B.Sc. Engineering, Electrical and Electronic Engineering (EEE), Chittagong University of Engineering & Technology (CUET), Bangladesh, 2010

Courses Taught

Dr. Nusrat Jahan is an Assistant Professor in the Electrical and Computer Engineering Department at California State University, Fresno. She holds her both M.S. and Ph.D. degrees in electrical and electronic engineering from Kyushu University in Fukuoka, Japan, achieved in 2016 and 2019 respectively. Her academic journey commenced with a B.Sc. degree in EEE from Chittagong University of Engineering and Technology (CUET) in Chattogram, Bangladesh.

Before her current role, Dr. Jahan worked as an associate research scientist at Columbia University in the City of New York, working under the guidance of Prof. Harish Krishnaswamy from 2022 to 2024. During this period, her research focused on the design of integrated circuits and systems for full-duplex radio systems and cryogenic electronics. Prior to her tenure in Columbia University, she served as an assistant professor of EEE at CUET from 2019 to 2022, enhancing her teaching and research skills.

Dr. Jahan's academic achievements include receiving the prestigious Monbu-Kagakusho (MEXT) Scholarship from the Japanese Government while pursuing her M.Sc. and Ph.D. studies at Kyushu University. Her research interests are diverse and encompass crucial areas of electrical engineering, such as CMOS-based millimeter-wave front-end components design, RF integrated circuits, microwave antenna design for biosensors, and analog circuits design.
  • Analog Circuits Design
  • Cryogenic CMOS Electronics Design for Quantum Computing Applications
  • Microwave and Antenna design
  • CMOS Architectures for Millimeter wave/Terahertz
Peer Reviewed Journal
  1. Dascurcu, N. Jahan, and H. Krishnaswamy; “A Wideband 4-Port Gyrator-Based Circulators in 0.15um GaN MMIC” in 2024 IEEE International Microwave Symposium (IMS), pp. 1-4, June 2024, Washington DC (Accepted).
  2. Jahan and R. K. Pokharel; “Design of a Band VCO Implementing T-Type Network in 0.18-m CMOS Technology,” IEEE Microwave and Wireless Components Letters, vol. 33, no. 7, pp. 1039-1042, July 2023.
  3. Chen, R. K. Pokharel, S. K. Thapa, N. Jahan and A. Barakat, “Design of 50-GHz Low Phase Noise VCO Employing Two-Branches DGS Resonator in 0.18-μm CMOS Technology,” IEEE Microwave and Wireless Components Letters, vol. 32, no. 10, pp. 1203-1206, Oct. 2022.
  4. R. Karim, N. Al Kayed, N. Jahan, M. S. Alam and B. M. A. Rahman, "Study of Highly Coherent Mid-Infrared Supercontinuum Generation in CMOS Compatible Si-Rich SiN Tapered Waveguide," Journal of Lightwave Technology, vol. 40, no. 13, pp. 4300-4310, 1 July1, 2022.
  5. Jahan, A. Barakat and R. K. Pokharel, "Design of Low Phase Noise VCO Considering C/L Ratio of LC Resonator in 0.18-μm CMOS Technology," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 12, pp. 3513-3517, Dec. 2021
  6. Jahan, C. Baichuan, A. Barakat, and R. K. Pokharel; “Utilization of Multi-Resonant Defected Ground Structure Resonators in the Oscillator Feedback for Phase Noise Reduction of K-Band VCOs in 0.18-μm CMOS Technology,” IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 4, pp. 1115-1125, April 2020.
  7. Jahan, A. Barakat, and R. K. Pokharel; “A -192.7 dBc/Hz FoM Ku-Band VCO Using a DGS Resonator with a High-Band Transmission Pole in 0.18-μm CMOS Technology,” IEEE Microwave and Wireless Components Letters, vol. 29, no. 12, pp. 814-817, Dec. 2019.
  8. Jahan, S. A. E. A. Rahim, H. Mosallam, A. Barakat, T. Kaho, and R. K. Pokharel; “22 GHz-Band Oscillator Using Integrated H-Shape Defected Ground Structure Resonator in 0.18-µm CMOS Technology,” IEEE Microwave and Wireless Components letters, vol. 28, no. 3, pp. 233-235, March 2018.
  9. N. Jahan, S. A. E. Ab Rahim, A. Barakat, T. Kaho, and R. K. Pokharel; “Design and Application of Virtual Inductance of Square-Shaped Defected Ground Structure in 0.18-µm CMOS Technology,” IEEE Journal of the Electron Devices Society, vol. 5, no. 5, pp. 299-305, Sept. 2017.
Peer Reviewed Conferences
  1. Jahan, A. Barakat, and R. K. Pokharel; “Efficacy of Transmission Poles Characteristics on K-Band VCOs Phase Noise Reduction” in proc. of 2022 IEEE Asia-Pacific Microwave Conference (APMC), pp. 1-4, December 2022, Yokohama, Japan.
  2. Chen, S. K. Thapa, N. Jahan, A.Barakat, and R. K. Pokharel “Design Methodology of Wide Tuning Range DGS based a VCO for K-band Applications in 0.18-μm CMOS Technology” in proc. of 2021 IEEE 16th European Microwave Integrated Circuits Conference (EuMIC), pp. 1-4.
  3. H. Biddut, M. E. Haque and N. Jahan, “A Wide Band Microstrip Patch Antenna Design Using Multiple Slots at V Band,” in proc. of IEEE 2022 International Mobile and Embedded Technology Conference (MECON), 2022, pp. 113- 116.
  4. Al Kayed, M. R. Karim, A. Hussain, N. Jahan and B. M. A. Rahman, “Wideband Mid-Infrared Supercontinuum Generation Using Inverse Tapered Silicon Nitride Waveguide,” in proc. of 2021 IEEE International Conference on Telecommunications and Photonics (ICTP), 2021, pp. 1-5.
  5. A. Kayed, M. R. Karim, N. Jahan, A. Hussain and B. M. A. Rahman, "Mid-Infrared Super Continuum Generation using Dispersion-Varying Silicon-Rich Silicon Nitride Waveguide," in proc. of IEEE 2021 International Conference on Science & Contemporary Technologies (ICSCT), 2021, pp. 1-5.
  6. Hussain, M. R. Karim, N. A. Kayed, N. Jahan, and B. M. A. Rahman: “Broadband Super Continuum Generation using Ge11.5As24Se64 Strip/Slot Hybrid Waveguide with Four Zero Group Delay Dispersion Wavelengths,” in the proceedings of OSA Non-linear Optics Topical Meeting (NLO), August 2021, pp. 1-4.
  7. Hussain, N. A. Kayed, M. R. Karim, N. Jahan, and B. M. A. Rahman: “Deep learning Approach for Predicting Optical Properties of Chalcogenide Planar Waveguide,” in the proceedings of IEEE The International Conference on Automation, Control and Mechatronics for Industry 4.0 (ACMI 2021), July 2021, Rajshahi, Bangladesh, pp. 1-4.
  8. Shil, S. Tabassum, and N. Jahan, “Gain Improvement of a Circularly Polarized Metamaterial-Based Antenna Using Square Ring-Shaped Defected Ground Structure,” in proc. of the 11th International Conference on Electrical and Computer Engineering (ICECE 2020), Dhaka, Bangladesh, December 2020, pp. 1-4.
  9. Das and N. Jahan, “Dual Band Rectangular Slotted Electromagnetic Band Gap Structure Design for improving Microstrip Patch Antenna Performance,” in proc. of the 6th International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2020), Dhaka, Bangladesh, December 2020, pp. 1-4.
  10. Tabassum, A. Shil, and N. Jahan, “Wideband Circularly Polarized Metamaterial based Antenna employing Metasurface Structure,” in proc. of the IEEE Region 10 Humanitarian Technology Conference (R10 HTC), Sarawak, Malaysia, December 2020, pp. 1-4.
  11. Shil, S. Tabassum, and N. Jahan, “Bandwidth and Gain Improvement of a Circularly Polarized Metamaterial-Based Antenna Employing Square Ring-Shaped Defected Ground Structure,” in proc. of the 6th International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2020), Fukuoka, Japan, October 2020, pp. 1-4.
  12. Das and N. Jahan, “A High Gain Dual Band Microstrip Patch Antenna Design Implementing Rectangular Slotted Electromagnetic Band Gap Structure,” in proc. of the 6th International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2020), Fukuoka, Japan, October 2020, pp. 1-4.
  13. Chen, N. Jahan, A. Barakat and R. K. Pokharel, “Experimental Study of the Effect of Interconnects on Phase Noise of K-Band VCO in 0.18-μm CMOS Technology,” in proc. of 2019 IEEE Asia-Pacific Microwave Conference (APMC), Singapore, Singapore, 2019, pp. 1670-1672.
  14. Jahan, A. Barakat, and R. K. Pokharel; “Analysis and Application of Dual Series Resonances for Low Phase Noise K- Band VCO Design in 0.18-μm CMOS Technology” IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1-5, June 2019, Sapporo, Japan.
  15. Mansour, M. Aboualalaa, N. Jahan, A. Barakat, R. K. Pokharel, A. Allam, and A. B. Abdel-Rahman, “Design of Multi-Layers DGS Resonator for Phase Noise Improvement of K-Band VCOs in 0.18-μm CMOS Technology,” IEEE International Midwest Symposium on Circuits and Systems MWSCAS), 5 Aug. 2018, Windsor, Canada.
  16. Jahan, A. Barakat, and R. K. Pokharel; “A K-Band VCO Employing High Active Q-factor Defected Ground Structure Resonator in 0.18pm CMOS Technology” IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1-5, May 2018, Florence, Italy.
  17. Jahan, A. Barakat, and R. K. Pokharel, “Study of Phase Noise Improvement of K-Band VCO Using Additional Series Resonance Realized by DGS Resonator on CMOS Technology,” IEEE Asia-Pacific Microwave Conference (APMC), pp. 1-4, Nov. 2017, KL, Malaysia.
  18. Jahan, A. Barakat, R. K. Pokharel, “Ku-Band Oscillator Using Integrated Defected Ground Structure Resonator in 0.18μm CMOS Technology,” in Proc. of IEEE European Microwave Conference (EuMC), pp. 1-4, Oct. 2017.
  19. Jahan, I.L. Abdalla, R. K. Pokharel, T.Kaho, “Wideband RF CMOS Variable Attenuator Using Single Stage Π-Topology,” in Proc. of The Third International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC), pp.66-67, March 2015.
  20. N. Jahan, A. Anand, T. Kaho, K.Yousef and R. K. Pokharel, “Wideband Injection Locked CMOS Quadrature Ring Oscillator with Small Phase Errors,” in Proc. of Korea-Japan Microwave Workshop (KJMW) pp. 1-3, December 2014.
Invited Talk/Workshop
  1. K. Pokharel, N. Jahan, and A. Barakat; “Multi-Resonant Circuits Using Defected Ground Structures Resonators for Low Phase Noise K-band VCOs in CMOS Technology,” in proc. of IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), pp. 1-3, Sept. 2020, Hiroshima, Japan.
  2. K. Pokharel, N. Jahan, and A. Barakat, “Dual Resonance Circuits by Defected Ground Structure Resonators for Low Phase Noise K-Band CMOS VCO,” IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Melbourne, VIC, 2018, pp. 1-3. doi: 10.1109/RFIT.2018.8524088
  3. R. K. Pokharel, N. Jahan, and A. Barakat, “Comparative Study of Virtual Inductors Realized by Defected Ground Structures for VCO Applications in 0.18-μm CMOS Technology,” Microwave Workshops and Exhibition (MWE), Nov. 2018, Yokohama, Japan.