N-path

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Analysis and Design of a 2–8 GHz Eight-Phase N-Path Passive Mixer-First Receiver With Overlapping LO Signals and Harmonic Loss Suppression

Analysis and Design of a 2–8 GHz Eight-Phase N-Path Passive Mixer-First Receiver With Overlapping LO Signals and Harmonic Loss Suppression 150 150
Author(s): Shimin Huang, Sanaz Sadeghi, Alyosha C. Molnar

Abstract:

This article presents a technique for suppressing the effects of overlapping LO signals in an eight-phase N-path passive mixer-first receiver. In particular, an architecture for an eight-phase mixer is presented, allowing the receiver to operate at higher frequencies with overlapping 25% duty-cycle LO pulses without incurring significant degradation in loss or …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3726862
Publisher: IEEE

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Integrated Low-Power Self-Coherent Kramers–Kronig Millimeter-Wave Receiver With Nonlinear Analog and Mixed-Signal Computing

Integrated Low-Power Self-Coherent Kramers–Kronig Millimeter-Wave Receiver With Nonlinear Analog and Mixed-Signal Computing 150 150
Author(s): Sherif Ghozzy, Muhamed Allam, Emir Ali Karahan, Zheng Liu, Kaushik Sengupta

Abstract:

A critical challenge in scaling up high-frequency wireless communication in the millimeter-Wave (mmWave) spectrum has been poor energy efficiency of the constituent transceivers, particularly on the highly energy constrained user equipment (UE). Receiving spectrally-efficient wireless signals (e.g., 64-quadrature amplitude modulation (QAM) etc.) require coherent transceivers with programmable frequency synthesizers, …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 18
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3720585
Publisher: IEEE

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A “No Gain” Direct-Conversion IQ RF-to-Bits Receiver Without Active Linear Amplification

A “No Gain” Direct-Conversion IQ RF-to-Bits Receiver Without Active Linear Amplification 150 150
Author(s): Jeroen Ponte, Roel Plompen, Emiel Zijlma, Eric A. M. Klumperink, Harijot Singh Bindra, Bram Nauta

Abstract:

This work describes a direct-conversion IQ receiver (RX) that does not utilize any active linear (power) amplification, covering its design considerations, prototype implementation, and measurement verification. Only RLC components, MOS transistor (MOST) switches, and comparators are used, leading to several unique design challenges. Key among these are the fact that …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 17
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3611114
Publisher: IEEE

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A 1-8 GHz, 190MHz BB BW Mixer-First Receiver With Bootstrapped Mixer Switches Achieving Over 16dBm In-Band IIP3

A 1-8 GHz, 190MHz BB BW Mixer-First Receiver With Bootstrapped Mixer Switches Achieving Over 16dBm In-Band IIP3 150 150
Author(s): Erwin Hardeveld, Ronan van der Zee, Bram Nauta

Abstract:

In this article, we propose a wideband mixer-first receiver with improved in-band (IB) linearity. It uses bootstrapped N-path mixer switches to achieve a constant on-state gate–source voltage for large IB signals. We analyze the tradeoff between on-state resistance and off-state subthreshold current in conventional mixer switches and introduce a …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3606117
Publisher: IEEE

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A 10 to 40 GHz Reflection-Mode N-Path Filter

A 10 to 40 GHz Reflection-Mode N-Path Filter 150 150
Author(s): Cody J. Ellington, Sandeep Hari, Brian A. Floyd

Abstract:

A bandpass reflection-mode N-path filter (RMNF) with 2-GHz bandwidth and 10 to 40 GHz center-frequency tuning is presented. The design includes a broadband hybrid coupler, N-path reflectors, comprising four-phase passive mixers terminated with third-order in-phase and quadrature-phase active baseband loads, and a broadband clock-generation network. The reflectors realize an in-band open circuit …

Published in: IEEE Solid-State Circuits Letters
Page(s): 169 – 172
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3575536
Publisher: IEEE

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