U. Maurya, M. Arrawatia and N. Nallam, "A Low-Loss T/R Module With Balanced Power Amplifier for High Antenna Impedance Tolerance," in IEEE Open Journal of Circuits and Systems, vol. 6, pp. 414-423, 2025. Paper
P. K. Sharma and N. Nallam, “Breaking the Performance Tradeoffs in N-Path Mixer-First Receivers Using a Second-
Order Baseband Noise-Canceling TIA,” in IEEE Journal of Solid-State Circuits, vol. 55, no. 11, pp. 3009-3023, Nov.
2020. Paper
K. Badiyari and N. Nallam, “Exploiting MOS Parametric Amplification to Suppress Noise in Switched-Capacitor RF
Receivers,” in IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 12, pp. 5347-5358, Dec. 2020.
Paper
G. D. Singh and N. Nallam, “An RF Choke-Less Class E Power Amplifier,” in IEEE Transactions on Circuits and
Systems II: Express Briefs, vol. 67, no. 11, pp. 2422-2426, Nov. 2020. Paper
I. Das and N. Nallam, “A Four-Phase Passive Mixer-First Receiver With a Low-Power Complementary Common-Gate
TIA,” in IEEE Access, vol. 8, pp. 216580-216592, 2020. Paper
K. Badiyari, N. Nallam and S. Chatterjee, “An N-Path Band-Pass Filter With Parametric Gain-Boosting,” in IEEE
Transactions on Circuits and Systems I: Regular Papers, vol. 66, no. 10, pp. 3700-3712, Oct. 2019.
Paper
P. K. Sharma and N. Nallam, “A 0.1–0.95 GHz Full-Duplex Receiver With < 1 dB NF Degradation Using a Passive
Continuous-Mode Charge-Sharing Vector Modulator,” in IEEE Transactions on Microwave Theory and Techniques,
vol. 67, no. 7, pp. 3042-3052, July 2019. Paper
R. S. Sangam, S. Poolakkal, R. Palthiya, N. Nallam, R. S. Kshetrimayum, “Dual-port, aperture coupled and tapered
fed patch antenna for full-duplex ISM applications,” Microw Opt Technol Lett., vol. 61, No. 2, pp. 542-545, Feb. 2019.
Paper
I. Das and N. Nallam, “Noise Cancelation? Explained!: The Role of Feedback in Noise-Canceling LNAs and Re-
ceivers,” in IEEE Microwave Magazine, vol. 18, no. 6, pp. 100-109, Sept.-Oct. 2017.
Paper
N. Nallam and S. Chatterjee, “Multi-Band Frequency Transformations, Matching Networks and Amplifiers,” in IEEE
Transactions on Circuits and Systems I: Regular Papers, vol. 60, no. 6, pp. 1635-1647, June 2013.
Paper
Conference Publications
U. Maurya, M. Arrawatia and N. Nallam, “A Quadrature Hybrid Coupler Based T/R Front-End,” 2023 IEEE
International Symposium on Circuits and Systems (ISCAS), Monterey, CA, USA, 2023, pp. 1-4.
P. K. Sharma and N. Nallam, “A Frequency-and-Spatial Blocker Tolerant Butler Matrix based 4×4 MIMO Receiver
using a Switched-Capacitor Quadrature Coupler,” 2021 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
Atlanta, GA, USA, 2021, pp. 79-82.
D. K. B., H. Shrimali and N. Nallam, “A Low-Power Quadrature LC-Oscillator Using Core-and-Coupling Current-
Reuse,” 2021 IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea, 2021, pp. 1-5.
S. Chatterjee, K. Badiyari and N. Nallam, “An N-Path Band-Pass Filter with Parametric Gain-Boosting,” 2020 IEEE
International Symposium on Circuits and Systems (ISCAS), Seville, Spain, 2020, pp. 1-1.
N. Nallam, “Analysis of a Dual N-Path Filter,” 2020 IEEE International Symposium on Circuits and Systems (ISCAS),
Seville, Spain, 2020, pp. 1-5.
S. Poolakkal and N. Nallam, “Enhancing the Phase-Noise-Figure-of-Merit of a Resonator using Frequency Transfor-
mations,” 2020 33rd International Conference on VLSI Design and 2020 19th International Conference on Embedded
Systems (VLSID), Bangalore, India, 2020, pp. 67-71.
K. Badiyari and N. Nallam, “A Switched-Capacitor RF Receiver Exploiting MOS Parametric Amplification to Reduce
NF,” 2019 IEEE MTT-S International Microwave Symposium (IMS), Boston, MA, USA, 2019, pp. 160-163.
P. K. Sharma and N. Nallam, “Linearity and NF Tradeoff in Input-Matched N-Path Mixer-First Receivers with Shunt-
Feedback TIAs,” 2019 IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, 2019, pp. 1-4.
I. Das and N. Nallam, “Systematic Generation of Flicker and Thermal Noise Canceling Circuits,” 2019 IEEE
International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, 2019, pp. 1-4.
G. D. Singh and N. Nallam, “A CMOS Inverter-Like Class-D/E Power Amplifier with No RF-Choke and No Dead-
Time Requirement,” 2018 IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 2018, pp.
1-4.
P. K. Sharma and N. Nallam, “A transformer-less duplexer with out-of-band filtering for same-channel full-duplex
radios,” 2017 IEEE International Symposium on Circuits and Systems (ISCAS), Baltimore, MD, USA, 2017, pp. 1-4.
P. K. Sharma and N. Nallam, “A widely tunable balun based on 2-port N-path bandpass filters with embedded phase
shifting,” 2017 IEEE International Symposium on Circuits and Systems (ISCAS), Baltimore, MD, USA, 2017, pp. 1-4.
N. Nallam and S. Chatterjee, “On the use of frequency transformations in the design of broad-band and concurrent
multi-band power amplifiers,” 2015 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications
(PAWR), San Diego, CA, USA, 2015, pp. 1-3.
P. Kaddi, N. Vamsi, A. Appala, A. Dutta, S. G. Singh and N. Nallam, “Efficient Dual Band RF Energy Harvesting
Front End for Ultra Low Power Sensitive Passive Wearable Devices,” 2014 Fifth International Symposium on Electronic
System Design, Surathkal, India, 2014, pp. 84-88.
N. Nallam and S. Chatterjee, “Design of concurrent multi-band matching networks,” 2011 IEEE International
Symposium of Circuits and Systems (ISCAS), Rio de Janeiro, Brazil, 2011, pp. 201-204.
Invited talks, tutorials, workshops, and short-courses
Tutorial - “CMOS Wideband Noise Canceling LNAs and Receivers,” during the IEEE Asia
Pacific Microwave Conference (APMC), New Delhi, Dec. 2016.
Organized a Meity Sponsored short-term course on “High-Speed Communication Circuits,” during 24/06/2018 to
01/07/2018 at IIT Guwahati.
Co-organized the ZoPP workshop at IIT Guwahati during 27-28 Oct. 2017.
Lecture on “Indigenous Design of Printed Circuit Boards,” during the “Indigenisation Week (5-8 Mar.
2019)” at 14 BRD, Air Force, Guwahati.
Lecture on “RF Amplifiers: LNAs and PAs,” as part of the IEP workshop titled “Mixed Signal and RFIC
Design” at NIT Sikkim during 5-9th June 2017.
Lecture on “Transmission lines & Waveguides,” as part of the Short Term Training Programme on “Elec-
tromagnetic Waves & its Various Applications” during 30th May-3rd June, 2016 at Guwahati Extension Centre of
NITTTR, Kolkata.
Lecture on “Radio receiver architectures: Fundamentals and Advances,” as part QIP short-term course on
“RF and Photonics: Fundamentals and Advances,” conducted during Feb. 23-27, 2015 at IIT Guwahati.
Patents
N. Nallam, “Frequency Divider for Non-Overlapping Clock Signals,” US Patent # 11,923,849 B1, March 2024.
P. K. Sharma and N. Nallam, “A Cartesian Vector Modulating Downmixer for Self-Interference Cancellation,” Indian
patent application # 201831008268.
