Active N-path Filters: Theory and Design

Darvishi, Milad

doi:10.3990/1.9789036505420

Cited by 12 publications

(23 citation statements)

References 83 publications

(279 reference statements)

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“…The switch parasitic capacitance of the N-path filter also shifts the center of the passband to a lower frequency [25]. The frequency of the peak of the passband is (13) Equation (13) predicts that, as increases, the peak will shift to a lower frequency.…”

Section: Passband Frequency Shift Due To Parasitic Capacitancementioning

confidence: 99%

“…Moreover, from (13), increasing minimizes the effect of the parasitic capacitance with a resulting decreased bandwidth and increased chip area. More exact expressions for the peak shift in frequency that include complex source impedance harmonic folding are given in [25].…”

Section: Passband Frequency Shift Due To Parasitic Capacitancementioning

confidence: 99%

“…It has been shown in [25] that the transfer function of multiple cascaded shunt N-path filters is equivalent to a single-shunt N-path filter. This allows for the simplification of Fig.…”

Section: Insertion Loss Limitations Of Finite Inductor Qmentioning

confidence: 99%

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Broadband Synthetic Transmission-Line N-Path Filter Design

Thomas

Larson

2015

IEEE Trans. Microwave Theory Techn.

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A synthetic transmission-line N-path bandpass filter technique that lowers the in-band insertion loss and increases the out-of-band rejection of the traditional N-path filter is analyzed. The performance limitations of the traditional N-path filter in terms of in-band insertion loss and limited rejection are reviewed. Measurement results from 0.1 to 1.6 GHz of a single-ended, four-stage synthetic transmission-line N-path filter fabricated in a 65-nm CMOS technology that achieves less than 5-dB insertion loss across the tuning range, 30-50-dB out-of-band rejection, in-band third-order distortion input-referred intercept point (IIP3) of 29 dBm, and a 11-dBm input-referred 1-dB compression point out-of-band jammer tolerance are presented.

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Section: Passband Frequency Shift Due To Parasitic Capacitancementioning

confidence: 99%

Section: Passband Frequency Shift Due To Parasitic Capacitancementioning

confidence: 99%

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Broadband Synthetic Transmission-Line N-Path Filter Design

Thomas

Larson

2015

IEEE Trans. Microwave Theory Techn.

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“…The traditional N-path filter's high-frequency performance is limited by the filter switch shunt parasitic capacitance, which increases the in-band insertion loss, and the switch resistance, which limits the out-of-band rejection [2,5].…”

Section: Introductionmentioning

confidence: 99%

“…The in-band input P1dB compression, in-band IIP3, and out-of-band jammer 1 dB blocker tolerance is improved compared to previous active approaches [5][6][7]. …”

Section: Introductionmentioning

confidence: 99%