Analysis of the Effect of Switch Parasitic Resistance and Capacitance on N-Path Filters Using State Space Representation

Erez Zolkov; Emanuel Cohen

doi:https://doi.org/10.1109/TCSII.2019.2956262

Analysis of the Effect of Switch Parasitic Resistance and Capacitance on N-Path Filters Using State Space Representation

Erez Zolkov, Emanuel Cohen

Electrical and Computer Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

This brief suggests a new method for analyzing the effects of nonideal properties of CMOS switches on N-path filters by expanding the linear periodically time-variant (LPTV) method to state space equations. The proposed technique provides an algorithm for analytical derivation of the harmonic transfer functions (HTF) and the noise figure (NF) of the N-path filter across all frequencies and harmonics. The analysis results show that for constant switch resistance and shunt capacitance product, a trade-off exists between out of band rejection, NF and insertion loss.

Original language	English
Article number	8915859
Pages (from-to)	1889-1893
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	67
Issue number	10
DOIs	https://doi.org/10.1109/TCSII.2019.2956262
State	Published - Oct 2020

Keywords

Band-pass filter
CMOS
LPTV circuits
N-path filter

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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https://doi.org/10.1109/TCSII.2019.2956262

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title = "Analysis of the Effect of Switch Parasitic Resistance and Capacitance on N-Path Filters Using State Space Representation",

abstract = "This brief suggests a new method for analyzing the effects of nonideal properties of CMOS switches on N-path filters by expanding the linear periodically time-variant (LPTV) method to state space equations. The proposed technique provides an algorithm for analytical derivation of the harmonic transfer functions (HTF) and the noise figure (NF) of the N-path filter across all frequencies and harmonics. The analysis results show that for constant switch resistance and shunt capacitance product, a trade-off exists between out of band rejection, NF and insertion loss.",

keywords = "Band-pass filter, CMOS, LPTV circuits, N-path filter",

author = "Erez Zolkov and Emanuel Cohen",

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N2 - This brief suggests a new method for analyzing the effects of nonideal properties of CMOS switches on N-path filters by expanding the linear periodically time-variant (LPTV) method to state space equations. The proposed technique provides an algorithm for analytical derivation of the harmonic transfer functions (HTF) and the noise figure (NF) of the N-path filter across all frequencies and harmonics. The analysis results show that for constant switch resistance and shunt capacitance product, a trade-off exists between out of band rejection, NF and insertion loss.

AB - This brief suggests a new method for analyzing the effects of nonideal properties of CMOS switches on N-path filters by expanding the linear periodically time-variant (LPTV) method to state space equations. The proposed technique provides an algorithm for analytical derivation of the harmonic transfer functions (HTF) and the noise figure (NF) of the N-path filter across all frequencies and harmonics. The analysis results show that for constant switch resistance and shunt capacitance product, a trade-off exists between out of band rejection, NF and insertion loss.

KW - Band-pass filter

KW - CMOS

KW - LPTV circuits

KW - N-path filter

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JO - IEEE Transactions on Circuits and Systems II: Express Briefs

JF - IEEE Transactions on Circuits and Systems II: Express Briefs

IS - 10

M1 - 8915859

ER -

Analysis of the Effect of Switch Parasitic Resistance and Capacitance on N-Path Filters Using State Space Representation

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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