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Yifei Li - IEEE Xplore Author Profile

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Author details

Yifei Li

Publications

8

Citations

17

Publications by Year

20132023

Co-Authors:

Pawan AgarwalAmany El-GouharyAmit Kumar MishraByron MontgomeryNathan M. Neihart

Show All Co-Authors (9)

Yifei Li

Affiliation

Maxlinear

Inc

Carlsbad, CA, USA

Publication Topics

Square Wave,
Capacitive Coupling,
Current Source,
Input Phase,
Linear Dynamics,
Operating Frequency,
Phase Interpolator,
Prior Art,
Additional Bits,
Average Yield,
Bias Conditions,
Bias Current

Biography

Yifei Li (Member, IEEE) received the B.S. degree in microelectronics from the Harbin Institute of Technology, Harbin, China, in 2010, the M.S. degree in electrical engineering from Korea University, Seoul, South Korea, in 2012, with a focus on high-speed I/O, and the Ph.D. degree in electrical engineering from Iowa State University, Ames, IA, USA, in 2017, where he worked on concurrent multi-band RF power amplifiers.,Since 2017, he has been with MaxLinear, Inc., Carlsbad, CA, USA, where he has worked on clock generation/distribution, PLL, TIA, and data converters for optical communication SoCs. His research interests include RF/mixed-signal circuits and systems for high-speed communications.(Based on document published on 21 February 2023).

Publications

8

Citations

17

Publications by Year

20132023

Co-Authors:

Pawan Agarwal
Amany El-Gouhary
Amit Kumar Mishra
Byron Montgomery
Nathan M. Neihart

Show All Co-Authors (9)

Author's Published Works

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Showing 1-25 of 31 results

Conferences (20)

Journals (11)

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Pawan Agarwal(31)
Deukhyoun Heo(28)
Sheikh Nijam Ali(12)
Suman P. Sah(8)
Joe Baylon(8)
School of EECS, Washington State University, Pullman, WA, USA(7)
School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA, USA(7)
Dept. of EECS, Washington State University, Pullman, USA(6)
Maxlinear Inc., Carlsbad, CA, USA(4)
Maxlinear, Inc., Carlsbad, CA, USA(4)
IEEE Transactions on Microwave Theory and Techniques(4)
IEEE Transactions on Circuits and Systems I: Regular Papers(3)
2014 IEEE MTT-S International Microwave Symposium (IMS2014)(2)
2017 IEEE MTT-S International Microwave Symposium (IMS)(2)
2020 IEEE/MTT-S International Microwave Symposium (IMS)(2)
IEEE(31)
San Francisco, CA, USA(3)
Tampa, FL, USA(3)
Honololu, HI, USA(2)
Los Angeles, CA, USA(2)
Seoul, Korea (South)(2)
Power Consumption(16)
Parasitic Capacitance(14)
Phase Noise(12)
Varactor(11)
Quality Factor(10)

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Improving Linearity in CMOS Phase Interpolators

Amit Kumar Mishra;Yifei Li;Pawan Agarwal;Sudip Shekhar

IEEE Journal of Solid-State Circuits

Year: 2023 | Volume: 58, Issue: 6 | Journal Article |

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We compare the prior art in phase interpolators (PIs), classifying them as current-mode, voltage-mode, and integrating-mode PI. Next, we present an integrating-mode PI where the voltage slopes with high phase linearity are generated through the integration of phase-shifted weighted current sources. The constant and variable voltage slopes are generated by current sources/sinks created using stacke...Show More

Improving Linearity in CMOS Phase Interpolators

Amit Kumar Mishra;Yifei Li;Pawan Agarwal;Sudip Shekhar

IEEE Journal of Solid-State Circuits

Year: 2023 | Volume: 58, Issue: 6 | Journal Article |

A 9b-Linear 14GHz Integrating-Mode Phase Interpolator in 5nm FinFET Process

Amit Kumar Mishra;Yifei Li;Pawan Agarwal;Sudip Shekhar

2022 IEEE International Solid-State Circuits Conference (ISSCC)

Year: 2022 | Conference Paper |

Cited by: Papers (8)

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Increased data-rates and multi-lane SerDes implementations impose stringent conditions for CDRs to produce low-jitter clocking that is capable of managing frequency and phase offsets. Consequently, high-speed phase interpolators (Pls) must be both low-power and compact for multi-lane requirements, but also high-resolution with respect to the clock period

$(\mathrm{T}_{\text{period}})$ , with high s...Show More

A 9b-Linear 14GHz Integrating-Mode Phase Interpolator in 5nm FinFET Process

Amit Kumar Mishra;Yifei Li;Pawan Agarwal;Sudip Shekhar

2022 IEEE International Solid-State Circuits Conference (ISSCC)

Year: 2022 | Volume: 65 | Conference Paper |

A New Boosted Active-Capacitor With Negative-Gm for Wide Tuning Range VCOs

Pawan Agarwal;Mohammad Chahardori;Deukhyoun Heo

IEEE Transactions on Circuits and Systems I: Regular Papers

Year: 2021 | Volume: 68, Issue: 3 | Journal Article |

Cited by: Papers (9)

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A new boosted active-capacitor (BAC) architecture using LC-tuned active-impedance-conversion is presented. In the chosen frequency range, the proposed BAC acts as a tunable capacitance multiplier and negative-transconductance, but where the positive-transconductance is not multiplied. The BAC is used as a low-loss tunable capacitor bank element for designing a wide tuning range voltage-controlled ...Show More

A New Boosted Active-Capacitor With Negative-Gm for Wide Tuning Range VCOs

Pawan Agarwal;Mohammad Chahardori;Deukhyoun Heo

IEEE Transactions on Circuits and Systems I: Regular Papers

Year: 2021 | Volume: 68, Issue: 3 | Journal Article |

Octave Frequency Range Triple-band Low Phase Noise K/Ka-Band VCO with a New Dual-path Inductor

Md Aminul Hoque;Mohammad Chahardori;Pawan Agarwal;Mohammad Ali Mokri;Deukhyoun Heo

2020 IEEE/MTT-S International Microwave Symposium (IMS)

Year: 2020 | Conference Paper |

Cited by: Papers (11)

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This paper presents a triple-band voltage controlled-oscillator (VCO) with a new dual-path inductor. The change in inductance value of the proposed dual-path inductor is large while maintaining high Q, enabling to achieve low phase noise oscillation with octave frequency range. The inductances in the two modes of operation can be set independently, depending on the target frequencies. The inductan...Show More

Octave Frequency Range Triple-band Low Phase Noise K/Ka-Band VCO with a New Dual-path Inductor

Md Aminul Hoque;Mohammad Chahardori;Pawan Agarwal;Mohammad Ali Mokri;Deukhyoun Heo

2020 IEEE/MTT-S International Microwave Symposium (IMS)

Year: 2020 | Conference Paper |

An X-band LC VCO Using a New Boosted Active Capacitor With 53 % Tuning Range and -202.4 dBc/Hz FoMT

Pawan Agarwal;Mohammad Chahardori;Deukhyoun Heo

2020 IEEE/MTT-S International Microwave Symposium (IMS)

Year: 2020 | Conference Paper |

Cited by: Papers (5)

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This paper presents a new boosted active-capacitor topology for wide tuning range voltage-controlled oscillators (VCO). A tuned inductor-based active-impedance-conversion circuit (LAIC) is used to multiply the capacitance of a capacitor bank and the negative-transconductance of LAIC in the proposed region of operation but without increasing losses. A boosted active-capacitor prototype in 65 nm CMO...Show More

An X-band LC VCO Using a New Boosted Active Capacitor With 53 % Tuning Range and -202.4 dBc/Hz FoMT

Pawan Agarwal;Mohammad Chahardori;Deukhyoun Heo

2020 IEEE/MTT-S International Microwave Symposium (IMS)

Year: 2020 | Conference Paper |

A Ka-Band Dual-Band Digitally Controlled Oscillator With −195.1-dBc/Hz FoM ${_T}$ Based on a Compact High- $Q$ Dual-Path Phase-Switched Inductor

Joe Baylon;Pawan Agarwal;Luke Renaud;Sheikh Nijam Ali;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2019 | Volume: 67, Issue: 7 | Journal Article |

Cited by: Papers (37)

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In this paper, a compact, low-loss, dual-path phase-switched inductor suitable for millimeter-wave (mmWave) transceiver subblocks is proposed. The signal path through the structure is determined by the relative polarity of two differential excitation signals applied to the four-port structure. Because inductance is varied by altering signal path through the inductor, signal-path MOSFET switches ar...Show More

A Ka-Band Dual-Band Digitally Controlled Oscillator With −195.1-dBc/Hz FoM ${_T}$ Based on a Compact High- $Q$ Dual-Path Phase-Switched Inductor

Joe Baylon;Pawan Agarwal;Luke Renaud;Sheikh Nijam Ali;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2019 | Volume: 67, Issue: 7 | Journal Article |

Transformer-Based Predistortion Linearizer for High Linearity and High Modulation Efficiency in mm-Wave 5G CMOS Power Amplifiers

Sheikh Nijam Ali;Pawan Agarwal;Srinivasan Gopal;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2019 | Volume: 67, Issue: 7 | Journal Article |

Cited by: Papers (30)

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This paper presents a new predistortion linearization technique for high linearity and high modulation efficiency in millimeter-wave (mm-wave) CMOS power amplifiers (PA) for fifth-generation (5G) mobile communications. Our proposed linearizer adopts a transformer-based (i.e., inductive) self-compensated predistortion network at the input of the PA whose amplitude-modulation to phase-modulation (AM...Show More

Transformer-Based Predistortion Linearizer for High Linearity and High Modulation Efficiency in mm-Wave 5G CMOS Power Amplifiers

Sheikh Nijam Ali;Pawan Agarwal;Srinivasan Gopal;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2019 | Volume: 67, Issue: 7 | Journal Article |

A 25–35 GHz Neutralized Continuous Class-F CMOS Power Amplifier for 5G Mobile Communications Achieving 26% Modulation PAE at 1.5 Gb/s and 46.4% Peak PAE

Sheikh Nijam Ali;Pawan Agarwal;Srinivasan Gopal;Shahriar Mirabbasi;Deukhyoun Heo

IEEE Transactions on Circuits and Systems I: Regular Papers

Year: 2019 | Volume: 66, Issue: 2 | Journal Article |

Cited by: Papers (45)

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This paper presents a high-efficiency neutralized continuous class-F (CCF) CMOS power amplifier (PA) design technique for millimeter-wave (mmW) 5G mobile communications. A parasitic-aware tuned-load with a high-order harmonicresonance network is proposed to shape the current and voltage waveforms for the CCF PA. At mmW frequencies, the gate- drain capacitance (Cgd) creates adverse capacitive loadi...Show More

A 25–35 GHz Neutralized Continuous Class-F CMOS Power Amplifier for 5G Mobile Communications Achieving 26% Modulation PAE at 1.5 Gb/s and 46.4% Peak PAE

Sheikh Nijam Ali;Pawan Agarwal;Srinivasan Gopal;Shahriar Mirabbasi;Deukhyoun Heo

IEEE Transactions on Circuits and Systems I: Regular Papers

Year: 2019 | Volume: 66, Issue: 2 | Journal Article |

High-Performance and Small-Form Factor Near-Field Inductive Coupling for 3-D NoC

Srinivasan Gopal;Sourav Das;Pawan Agarwal;Sheikh Nijam Ali;Deukhyoun Heo;Partha Pratim Pande

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Year: 2018 | Volume: 26, Issue: 12 | Journal Article |

Cited by: Papers (8)

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Wireless interconnects using near-field inductive coupling (NFIC) enables contactless vertical communications necessary for the design of energy efficient and robust 3-D manycore systems. However, the achievable performance, energy efficiency, bandwidth, and associated area overhead of NFICs are intertwined imposing significant design challenges and tradeoffs to explore the optimum link configurat...Show More

High-Performance and Small-Form Factor Near-Field Inductive Coupling for 3-D NoC

Srinivasan Gopal;Sourav Das;Pawan Agarwal;Sheikh Nijam Ali;Deukhyoun Heo;Partha Pratim Pande

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Year: 2018 | Volume: 26, Issue: 12 | Journal Article |

An Echo-Canceller-Iess NFIC- TSV Hybrid 3D Interconnect for Simultaneous Bidirectional Vertical Communication

Srinivasan Gopal;Pawan Agarwal;Sheikh Nijam Ali;Joe Baylon;Deukhyoun Heo

2018 IEEE/MTT-S International Microwave Symposium - IMS

Year: 2018 | Conference Paper |

Cited by: Papers (4)

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This paper presents an echo-canceller-less wireless-wireline hybrid 3D interconnect for simultaneous bidirectional (SBD) vertical communication. This is accomplished by combining wireless near-field inductive coupling channel (NFIC) that encompasses wireline through-silicon via (TSV) channels to form a bidirectional vertical link for the first time using face-to-back 3D integration technologies ap...Show More

An Echo-Canceller-Iess NFIC- TSV Hybrid 3D Interconnect for Simultaneous Bidirectional Vertical Communication

Srinivasan Gopal;Pawan Agarwal;Sheikh Nijam Ali;Joe Baylon;Deukhyoun Heo

2018 IEEE/MTT-S International Microwave Symposium - IMS

Year: 2018 | Conference Paper |

A Spatial Multi-Bit Sub-1-V Time-Domain Matrix Multiplier Interface for Approximate Computing in 65-nm CMOS

Srinivasan Gopal;Pawan Agarwal;Joe Baylon;Luke Renaud;Sheikh Nijam Ali;Partha Pratim Pande;Deukhyoun Heo

IEEE Journal on Emerging and Selected Topics in Circuits and Systems

Year: 2018 | Volume: 8, Issue: 3 | Journal Article |

Cited by: Papers (11)

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Large-scale parallel implementation of matrix multiply and accumulate (MAC) core poses significant energy and area constraints in analog voltage domain under reduced supply voltage. A spatial multi-bit sub-1-V time-domain matrix multiplier interface is presented using multi-bit back-gate-driven delay elements as a scalable alternative for various approximate computing applications. A single-chip s...Show More

A Spatial Multi-Bit Sub-1-V Time-Domain Matrix Multiplier Interface for Approximate Computing in 65-nm CMOS

Srinivasan Gopal;Pawan Agarwal;Joe Baylon;Luke Renaud;Sheikh Nijam Ali;Partha Pratim Pande;Deukhyoun Heo

IEEE Journal on Emerging and Selected Topics in Circuits and Systems

Year: 2018 | Volume: 8, Issue: 3 | Journal Article |

A 28GHz 41%-PAE linear CMOS power amplifier using a transformer-based AM-PM distortion-correction technique for 5G phased arrays

Sheikh Nijam Ali;Pawan Agarwal;Joe Baylon;Srinivasan Gopal;Luke Renaud;Deukhyoun Heo

2018 IEEE International Solid-State Circuits Conference - (ISSCC)

Year: 2018 | Conference Paper |

Cited by: Papers (67)

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To fulfill the insatiable demand for high data-rates, the millimeter-wave (mmW) 5G communication standard will extensively use high-order complex-modulation schemes (e.g., QAM) with high peak-to-average power ratios (PAPRs) and large RF bandwidths. High-efficiency integrated CMOS power amplifiers (PA) are highly desirable for portable devices for improved battery life, reduced form factor, and low...Show More

A 28GHz 41%-PAE linear CMOS power amplifier using a transformer-based AM-PM distortion-correction technique for 5G phased arrays

Sheikh Nijam Ali;Pawan Agarwal;Joe Baylon;Srinivasan Gopal;Luke Renaud;Deukhyoun Heo

2018 IEEE International Solid-State Circuits Conference - (ISSCC)

Year: 2018 | Conference Paper |

A 40% PAE Frequency-Reconfigurable CMOS Power Amplifier With Tunable Gate–Drain Neutralization for 28-GHz 5G Radios

Sheikh Nijam Ali;Pawan Agarwal;Luke Renaud;Reza Molavi;Shahriar Mirabbasi;Partha Pratim Pande;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2018 | Volume: 66, Issue: 5 | Journal Article |

Cited by: Papers (62)

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In this paper, a high-efficiency frequency-reconfigurable CMOS power amplifier (PA) design technique is presented at 24 and 28 GHz using integrated tunable neutralization and matching networks. To cope with the adverse effects of gate-drain capacitance (Cgd) in millimeter-wave (mm-wave) CMOS PAs in deep-submicrometer technologies, we propose a reconfigurable coupling-coefficient-based transformer....Show More

A 40% PAE Frequency-Reconfigurable CMOS Power Amplifier With Tunable Gate–Drain Neutralization for 28-GHz 5G Radios

Sheikh Nijam Ali;Pawan Agarwal;Luke Renaud;Reza Molavi;Shahriar Mirabbasi;Partha Pratim Pande;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2018 | Volume: 66, Issue: 5 | Journal Article |

Zero-Power Feed-Forward Spur Cancelation for Supply-Regulated CMOS Ring PLLs

Pawan Agarwal;Jong-Hoon Kim;Partha Pratim Pande;Deukhyoun Heo

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Year: 2018 | Volume: 26, Issue: 4 | Journal Article |

Cited by: Papers (4)

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A new reference-spur cancelation technique is presented for supply-regulated ring-oscillator-based integer-N phaselocked loops (PLLs). A passive RC filter is used to implement a feed-forward (FF) spur-coupling path to perform spur cancelation at the PLL control signal. The proposed technique achieves a simulated spur cancelation of about 22 dB at the first spur harmonic. The simulated postcancelat...Show More

Zero-Power Feed-Forward Spur Cancelation for Supply-Regulated CMOS Ring PLLs

Pawan Agarwal;Jong-Hoon Kim;Partha Pratim Pande;Deukhyoun Heo

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Year: 2018 | Volume: 26, Issue: 4 | Journal Article |

Reconfigurable high efficiency power amplifier with tunable coupling coefficient based transformer for 5G applications

Sheikh Nijam Ali;Pawan Agarwal;Joe Baylon;Deukhyoun Heo

2017 IEEE MTT-S International Microwave Symposium (IMS)

Year: 2017 | Conference Paper |

Cited by: Papers (23) | Patents (2)

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A frequency reconfigurable high efficiency power amplifier (PA) is presented for 5G applications using on-chip switchable matching networks. To cope with increased gate-drain capacitance (Cgd) in deep submicron CMOS PA design at mm-Wave frequencies, a tunable coupling-coefficient based transformer is proposed. This technique dramatically improves the neutralization of Cgd in a common-source PA whi...Show More

Reconfigurable high efficiency power amplifier with tunable coupling coefficient based transformer for 5G applications

Sheikh Nijam Ali;Pawan Agarwal;Joe Baylon;Deukhyoun Heo

2017 IEEE MTT-S International Microwave Symposium (IMS)

Year: 2017 | Conference Paper |

Current reuse triple-band signal source for multi-band wireless network-on-chip

Joe Baylon;Sheikh Nijam Ali;Pawan Agarwal;Srinivasan Gopal;Deukhyoun Heo

2017 IEEE MTT-S International Microwave Symposium (IMS)

Year: 2017 | Conference Paper |

Cited by: Papers (14)

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A current reuse triple-band signal generator is proposed which simultaneously generates a first, second, and third harmonic output signal from a 26.5-30.2 GHz fundamental voltage controlled oscillator (VCO). Transformer-based Gm boosting and passive 2nd harmonic extraction is proposed to achieve a good performance with exceptionally low power. A low-voltage modified Gilbert cell mixer generates th...Show More

Current reuse triple-band signal source for multi-band wireless network-on-chip

Joe Baylon;Sheikh Nijam Ali;Pawan Agarwal;Srinivasan Gopal;Deukhyoun Heo

2017 IEEE MTT-S International Microwave Symposium (IMS)

Year: 2017 | Conference Paper |

Reconfigurable phased-array design techniques for 5G and beyond communications

Pawan Agarwal;Sheikh Nijam Ali;Deukhyoun Heo

2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

Year: 2017 | Conference Paper |

Cited by: Papers (2)

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This paper presents the design of multi-band millimeter-wave (mmW) phased-array communication systems for wideband applications. A multi-band matching network (MN) design is proposed using a novel low-loss reconfigurable-inductor (RI). Furthermore, a reconfigurable-transformer (RT) is shown for an accurate neutralization of the gate-drain capacitance (Cgd), which improves the efficiency and stabil...Show More

Reconfigurable phased-array design techniques for 5G and beyond communications

Pawan Agarwal;Sheikh Nijam Ali;Deukhyoun Heo

2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

Year: 2017 | Conference Paper |

A 42–46.4% PAE continuous class-F power amplifier with Cgd neutralization at 26–34 GHz in 65 nm CMOS for 5G applications

Sheikh Nijam Ali;Pawan Agarwal;Shahriar Mirabbasi;Deukhyoun Heo

2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

Year: 2017 | Conference Paper |

Cited by: Papers (8)

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This paper presents a wideband high efficiency continuous class-F (CCF) power amplifier (PA) at mm-Wave frequencies for the first time. A tuned load with a high-order harmonic resonance network is used to shape the current and voltage waveforms for the proposed CCF CMOS PA. Further, a transformer with a tunable coupling-coefficient (ktune) is incorporated in the tuned load network to address the d...Show More

A 42–46.4% PAE continuous class-F power amplifier with Cgd neutralization at 26–34 GHz in 65 nm CMOS for 5G applications

Sheikh Nijam Ali;Pawan Agarwal;Shahriar Mirabbasi;Deukhyoun Heo

2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

Year: 2017 | Conference Paper |

Switched Substrate-Shield-Based Low-Loss CMOS Inductors for Wide Tuning Range VCOs

Pawan Agarwal;Suman Prasad Sah;Reza Molavi;Shahriar Mirabbasi;Partha Pratim Pande;Seung Eel Oh;Jong-Hoon Kim;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2017 | Volume: 65, Issue: 8 | Journal Article |

Cited by: Papers (50)

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A switched substrate-shield inductor (SSI) topology in bulk CMOS is proposed which minimizes parasitic capacitance and substrate losses, while tuned magnetically induced currents facilitate inductor tunability. The high frequency behavior of the induced current is analyzed, resulting in intuitive insights and design guidelines for a high-performance SSI. An SSI prototype in 65-nm bulk CMOS achieve...Show More

Switched Substrate-Shield-Based Low-Loss CMOS Inductors for Wide Tuning Range VCOs

Pawan Agarwal;Suman Prasad Sah;Reza Molavi;Shahriar Mirabbasi;Partha Pratim Pande;Seung Eel Oh;Jong-Hoon Kim;Deukhyoun Heo

IEEE Transactions on Microwave Theory and Techniques

Year: 2017 | Volume: 65, Issue: 8 | Journal Article |

A low power sub-harmonic injection locked 2×2 mm-wave beamforming receiver array

Suman P. Sah;Pawan Agarwal;Deukhyoun Heo

2016 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2016 | Conference Paper |

Cited by: Papers (1)

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A low power, 2×2 V-band beamforming receiver array using a local-oscillator (LO) phase-shifting approach is presented in this paper. Significant power savings in LO routing is achieved using an 8th sub-harmonic injection locked oscillator (SHILO), used for both frequency-multiplication and programmable phase-shift to implement beamforming. SHILO generates mm-Wave phase shift of ±90°. For low power...Show More

A low power sub-harmonic injection locked 2×2 mm-wave beamforming receiver array

Suman P. Sah;Pawan Agarwal;Deukhyoun Heo

2016 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2016 | Conference Paper |

A 5.8 GHz and -192.9 dBc/Hz FoMT CMOS class-B capacitively-coupled VCO with Gm-enhancement

Tai N. Nguyen;Pawan Agarwal;Deukhyoun Heo

2016 IEEE MTT-S International Microwave Symposium (IMS)

Year: 2016 | Conference Paper |

Cited by: Papers (4)

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This paper presents a novel gm enhancement method to minimize the oscillation start-up current in a CMOS voltage-controlled oscillator (VCO). A class-B biasing is achieved by extending the capacitive-feedback network, resulting in a larger output amplitude and hence a lower phase-noise. The flicker-noise of the tail current source is further minimized by self-biased switching current-sources. The ...Show More

A 5.8 GHz and -192.9 dBc/Hz FoMT CMOS class-B capacitively-coupled VCO with Gm-enhancement

Tai N. Nguyen;Pawan Agarwal;Deukhyoun Heo

2016 IEEE MTT-S International Microwave Symposium (IMS)

Year: 2016 | Conference Paper |

2.45 GHz, 100 Mbps BPSK-DSSS transmitter for interference-robust wireless neuroprosthetic networks

Pawan Agarwal;Luke Renaud;Joe Baylon;Deyasini Majumdar;Deukhyoun Heo;Christian Schlegel

2015 European Microwave Conference (EuMC)

Year: 2015 | Conference Paper |

Cited by: Papers (1)

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We present a 2.45 GHz 100 Mbps transmitter for body-implantable wireless neuroprosthetic links. Binary phase-shift keyed (BPSK) modulation with direct sequence spread-spectrum (DSSS) signaling and a 32-bit wide pseudo noise (PN) code is used to create energy-efficient interference-robust communication link. Power consumption is minimized by using a novel transmission-gate based low-loss passive mi...Show More

2.45 GHz, 100 Mbps BPSK-DSSS transmitter for interference-robust wireless neuroprosthetic networks

Pawan Agarwal;Luke Renaud;Joe Baylon;Deyasini Majumdar;Deukhyoun Heo;Christian Schlegel

2015 European Microwave Conference (EuMC)

Year: 2015 | Conference Paper |

25.3 GHz, 4.1 mW VCO with 34.8% tuning range using a switched substrate-shield inductor

Pawan Agarwal;Partha Pratim Pande;Deukhyoun Heo

2015 IEEE MTT-S International Microwave Symposium

Year: 2015 | Conference Paper |

Cited by: Papers (12) | Patents (1)

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A wide tuning range CMOS VCO based on a switched substrate-shield inductor is presented. The proposed VCO uses a high quality factor, switchable inductor with smaller parasitics for frequency tuning range extension. Inductance is switched by controlling the eddy currents in a modified, floating substrate-shield. Using the proposed design, a 29 % inductance switching is achieved while maintaining a...Show More

25.3 GHz, 4.1 mW VCO with 34.8% tuning range using a switched substrate-shield inductor

Pawan Agarwal;Partha Pratim Pande;Deukhyoun Heo

2015 IEEE MTT-S International Microwave Symposium

Year: 2015 | Conference Paper |

A 8–40 GHz, 8 mW LNA with 27 dB peak gain and 5.2 dB NF for multiband applications

Suman P. Sah;Yu You;Pawan Agarwal;Deukhyoun Heo

2014 9th European Microwave Integrated Circuit Conference

Year: 2014 | Conference Paper |

Cited by: Papers (2)

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An extremely-wideband, 8-40 GHz, low power Low Noise Amplifier (LNA) is presented in this paper. The LNA utilizes a novel combination of design techniques, namely resistive feedback, emitter degeneration, and shunt-peaked split-inductor to provide wideband input and noise matching. Furthermore, the LNA is designed as 3-stage amplifier to provide better gain control through stagger-tuning method, t...Show More

A 8–40 GHz, 8 mW LNA with 27 dB peak gain and 5.2 dB NF for multiband applications

Suman P. Sah;Yu You;Pawan Agarwal;Deukhyoun Heo

2014 9th European Microwave Integrated Circuit Conference

Year: 2014 | Conference Paper |

A low power 8th sub-harmonic injection locked receiver for mm-Wave beamforming applications

Suman P. Sah;Pawan Agarwal;Deukhyoun Heo

2014 IEEE Radio Frequency Integrated Circuits Symposium

Year: 2014 | Conference Paper |

Cited by: Papers (3)

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This paper presents a single element V-band low power 8th sub-harmonic injection locked beamforming receiver. A significant savings in local oscillator (LO) routing power is achieved by using an 8th sub-harmonic injection locked oscillator (SILO) for frequency multiplication and phase-shifting. Power consumption of the LNA and mixer is lowered by means of transformer feedback techniques. The propo...Show More

A low power 8th sub-harmonic injection locked receiver for mm-Wave beamforming applications

Suman P. Sah;Pawan Agarwal;Deukhyoun Heo

2014 IEEE Radio Frequency Integrated Circuits Symposium

Year: 2014 | Conference Paper |

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