A 128-Tap Highly Tunable CMOS IF Finite Impulse Response Filter for Pulsed Radar Applications

John, Mincey,; Su, Eric; Silva-Martí­nez, J.; Rodenbeck, Christopher T.

doi:10.1109/tvlsi.2018.2803525

Cited by 4 publications

(2 citation statements)

References 32 publications

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“…Analog Finite-Impulse-Response (AFIR) filters [7][8][9][10][11], some of which referred to as Filtering-by-Aliasing [12][13][14], have a very sharp filter transition and good out-of-band (OOB) rejection. The most straightforward AFIR filter implementation stores samples of the input signal, provides a weighting coefficient for every time step and delivers an output sample at the input sampling rate [8,10]. This requires a lot of storage capacitors for a high filter order.…”

Section: Introductionmentioning

confidence: 99%

Low-Power Highly Selective Channel Filtering Using a Transconductor–Capacitor Analog FIR

Thijssen

Klumperink

Quinlan

et al. 2020

IEEE J. Solid-State Circuits

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Analog Finite-Impulse-Response (AFIR) filtering is proposed to realize low power channel selection filters for Internet-of-Things receivers. High selectivity is achieved using an architecture based on only a single -time-varyingtransconductance and integration capacitor. The transconductance is implemented as a Digital-to-Analog Converter and is programmable by an on-chip memory. The AFIR operating principle is shown step-by-step, including its complete transfer function with aliasing. The filter bandwidth and transfer function are highly programmable through the transconductance coefficients and clock frequency. Moreover, the transconductance programmability allows an almost ideal filter response to be realized by careful analysis and compensation of the parasitic circuit impairments. The filter, manufactured in 22nm FDSOI, has an active area of 0.09mm 2 . Its bandwidth can be accurately tuned from 0.06 to 3.4MHz. The filter consumes 92µW from a 700mV supply. This low power consumption is combined with a high selectivity: f -60dB /f -3dB =3.8. The filter has 31.5dB gain and 12nV/ √ Hz input-referred noise for a 0.43MHz bandwidth. The OIP3 is 28dBm, independent of the frequency offset. The outputreferred 1dB-compression point is 3.7dBm, and the in-band gain compresses by 1dB for an -3.7dBm out-of-band input signal, while still providing >60dB of filtering.

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Section: Introductionmentioning

confidence: 99%

Low-Power Highly Selective Channel Filtering Using a Transconductor–Capacitor Analog FIR

Thijssen

Klumperink

Quinlan

et al. 2020

IEEE J. Solid-State Circuits

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“…The first analog FIR circuits were applied as binary matched filters to pseudo-random noise signals [7,18,19,29]. The analog FIR matched filters also have a potential application in radar receivers [125]. An alternative is to employ the analog FIR circuits implemented as analog-analog or analog-digital crosscorrelators [21,23,24,28,30,33,38].…”

Section: Applicationsmentioning

confidence: 99%

IoT receiver techniques: on filtering, power consumption and phase noise

Thijssen¹

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IoT Receiver Techniques On Filtering, Power Consumption and Phase Noise Proefschrift ter verkrijging van de graad van doctor aan de Universiteit Twente, op gezag van de rector magnificus, prof. dr. ir. A. Veldkamp, volgens besluit van het College voor Promoties in het openbaar te verdedigen op woensdag 7 april 2021 om 14:45 uur door Bartholomeus Jacobus Thijssen geboren op 25 oktober 1992 te Ede Dit proefschrift is goedgekeurd door: de promotor prof. dr. ir. B. Nauta de co-promotor dr. ing. E.A

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A Power-Efficient 13-Tap FIR Filter and an IIR Filter Embedded in a 10-Bit SAR ADC

Xin

Shen

Tang

et al. 2023

IEEE Trans. Circuits Syst. I

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A 128-Tap Highly Tunable CMOS IF Finite Impulse Response Filter for Pulsed Radar Applications

Cited by 4 publications

References 32 publications

Low-Power Highly Selective Channel Filtering Using a Transconductor–Capacitor Analog FIR

Low-Power Highly Selective Channel Filtering Using a Transconductor–Capacitor Analog FIR

IoT receiver techniques: on filtering, power consumption and phase noise

A Power-Efficient 13-Tap FIR Filter and an IIR Filter Embedded in a 10-Bit SAR ADC

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