Spatial Interferer Rejection in a 4-Element Beamforming Receiver Frontend with a Switched-Capacitor Vector Modulator

M.C.M. Soer; Eric A.M. Klumperink; Bram Nauta; Frank Edward van Vliet

doi:10.1109/JSSC.2011.2163553

Spatial Interferer Rejection in a 4-Element Beamforming Receiver Frontend with a Switched-Capacitor Vector Modulator

M.C.M. Soer, Eric A.M. Klumperink, Bram Nauta, Frank Edward van Vliet

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

21 Citations (Scopus)

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Abstract

A 1-4GHz 4-element phased array receiver frontend demonstrates spatial interferer rejection using null steering. Element phase and amplitude control are performed by a switchedcapacitor vector modulator with integrated downconversion, utilizing a rational sine/cosine approximation. The 65nm CMOS receiver achieves more than 20dB of spatial interferer rejection up to an angular separation of 15°.

Original language	English
Pages (from-to)	2933-2942
Number of pages	10
Journal	IEEE journal of solid-state circuits
Volume	46
Issue number	12
DOIs	https://doi.org/10.1109/JSSC.2011.2163553
Publication status	Published - 1 Dec 2011

Keywords

Phase-shifter
Phased arrays
switched-capacitor
interference nulling
vector modulator
Beam-forming
spatial filtering
EWI-21295
Receivers
METIS-285010
IR-79355
mixer

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title = "Spatial Interferer Rejection in a 4-Element Beamforming Receiver Frontend with a Switched-Capacitor Vector Modulator",

abstract = "A 1-4GHz 4-element phased array receiver frontend demonstrates spatial interferer rejection using null steering. Element phase and amplitude control are performed by a switchedcapacitor vector modulator with integrated downconversion, utilizing a rational sine/cosine approximation. The 65nm CMOS receiver achieves more than 20dB of spatial interferer rejection up to an angular separation of 15°.",

keywords = "Phase-shifter, Phased arrays, switched-capacitor, interference nulling, vector modulator, Beam-forming, spatial filtering, EWI-21295, Receivers, METIS-285010, IR-79355, mixer",

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year = "2011",

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AU - Soer, M.C.M.

AU - Klumperink, Eric A.M.

AU - Nauta, Bram

AU - van Vliet, Frank Edward

PY - 2011/12/1

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N2 - A 1-4GHz 4-element phased array receiver frontend demonstrates spatial interferer rejection using null steering. Element phase and amplitude control are performed by a switchedcapacitor vector modulator with integrated downconversion, utilizing a rational sine/cosine approximation. The 65nm CMOS receiver achieves more than 20dB of spatial interferer rejection up to an angular separation of 15°.

AB - A 1-4GHz 4-element phased array receiver frontend demonstrates spatial interferer rejection using null steering. Element phase and amplitude control are performed by a switchedcapacitor vector modulator with integrated downconversion, utilizing a rational sine/cosine approximation. The 65nm CMOS receiver achieves more than 20dB of spatial interferer rejection up to an angular separation of 15°.

KW - Phase-shifter

KW - Phased arrays

KW - switched-capacitor

KW - interference nulling

KW - vector modulator

KW - Beam-forming

KW - spatial filtering

KW - EWI-21295

KW - Receivers

KW - METIS-285010

KW - IR-79355

KW - mixer

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DO - 10.1109/JSSC.2011.2163553

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JO - IEEE journal of solid-state circuits

JF - IEEE journal of solid-state circuits

SN - 0018-9200

IS - 12

ER -

Spatial Interferer Rejection in a 4-Element Beamforming Receiver Frontend with a Switched-Capacitor Vector Modulator

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