Smart self-interference suppression by exploiting a nonlinearity

E.J.G. Janssen, H. Habibi, D. Milosevic, P.G.M. Baltus, A.H.M. Roermund, van

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

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Abstract

A 1.8GHz RF amplifier implemented in 0.14um CMOS with frequency-independent blocker suppression is presented. The blocker suppression functionality is obtained by the adaptation of a nonlinear input–output transfer according to the blocker amplitude. Since superposition does not apply to nonlinear transfer functions, the behavior of such a transfer for strong undesired signals is different from the behavior for weak desired signals, which is exploited here. In the presence of a 0 to +11 dBm RF blocker, a voltage gain for weak signals of respectively 7.6–9.4 dB and IIP3 >4 dBm are measured, while the blocker is suppressed by more than 35 dB. In case of no blocker present at the input, the circuit is set to amplifier mode providing 17 dB of voltage gain and an IIP3 of 6.6 dBm while consuming 3 mW. Application areas are coexistence in multi-radio devices and dealing with TX leakage in FDD systems.
Original languageEnglish
Title of host publicationFrequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013
EditorsA. Baschirotto, K.A.A. Makinwa, P.J.A. Harpe
Place of PublicationDordrecht
PublisherSpringer
Pages249-263
ISBN (Print)978-3-319-01079-3
DOIs
Publication statusPublished - 2013

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Interference suppression
Electric potential
Transfer functions
Networks (circuits)

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Janssen, E. J. G., Habibi, H., Milosevic, D., Baltus, P. G. M., & Roermund, van, A. H. M. (2013). Smart self-interference suppression by exploiting a nonlinearity. In A. Baschirotto, K. A. A. Makinwa, & P. J. A. Harpe (Eds.), Frequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013 (pp. 249-263). Dordrecht: Springer. https://doi.org/10.1007/978-3-319-01080-9_14
Janssen, E.J.G. ; Habibi, H. ; Milosevic, D. ; Baltus, P.G.M. ; Roermund, van, A.H.M. / Smart self-interference suppression by exploiting a nonlinearity. Frequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013. editor / A. Baschirotto ; K.A.A. Makinwa ; P.J.A. Harpe. Dordrecht : Springer, 2013. pp. 249-263
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abstract = "A 1.8GHz RF amplifier implemented in 0.14um CMOS with frequency-independent blocker suppression is presented. The blocker suppression functionality is obtained by the adaptation of a nonlinear input–output transfer according to the blocker amplitude. Since superposition does not apply to nonlinear transfer functions, the behavior of such a transfer for strong undesired signals is different from the behavior for weak desired signals, which is exploited here. In the presence of a 0 to +11 dBm RF blocker, a voltage gain for weak signals of respectively 7.6–9.4 dB and IIP3 >4 dBm are measured, while the blocker is suppressed by more than 35 dB. In case of no blocker present at the input, the circuit is set to amplifier mode providing 17 dB of voltage gain and an IIP3 of 6.6 dBm while consuming 3 mW. Application areas are coexistence in multi-radio devices and dealing with TX leakage in FDD systems.",
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Janssen, EJG, Habibi, H, Milosevic, D, Baltus, PGM & Roermund, van, AHM 2013, Smart self-interference suppression by exploiting a nonlinearity. in A Baschirotto, KAA Makinwa & PJA Harpe (eds), Frequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013. Springer, Dordrecht, pp. 249-263. https://doi.org/10.1007/978-3-319-01080-9_14

Smart self-interference suppression by exploiting a nonlinearity. / Janssen, E.J.G.; Habibi, H.; Milosevic, D.; Baltus, P.G.M.; Roermund, van, A.H.M.

Frequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013. ed. / A. Baschirotto; K.A.A. Makinwa; P.J.A. Harpe. Dordrecht : Springer, 2013. p. 249-263.

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

TY - CHAP

T1 - Smart self-interference suppression by exploiting a nonlinearity

AU - Janssen, E.J.G.

AU - Habibi, H.

AU - Milosevic, D.

AU - Baltus, P.G.M.

AU - Roermund, van, A.H.M.

PY - 2013

Y1 - 2013

N2 - A 1.8GHz RF amplifier implemented in 0.14um CMOS with frequency-independent blocker suppression is presented. The blocker suppression functionality is obtained by the adaptation of a nonlinear input–output transfer according to the blocker amplitude. Since superposition does not apply to nonlinear transfer functions, the behavior of such a transfer for strong undesired signals is different from the behavior for weak desired signals, which is exploited here. In the presence of a 0 to +11 dBm RF blocker, a voltage gain for weak signals of respectively 7.6–9.4 dB and IIP3 >4 dBm are measured, while the blocker is suppressed by more than 35 dB. In case of no blocker present at the input, the circuit is set to amplifier mode providing 17 dB of voltage gain and an IIP3 of 6.6 dBm while consuming 3 mW. Application areas are coexistence in multi-radio devices and dealing with TX leakage in FDD systems.

AB - A 1.8GHz RF amplifier implemented in 0.14um CMOS with frequency-independent blocker suppression is presented. The blocker suppression functionality is obtained by the adaptation of a nonlinear input–output transfer according to the blocker amplitude. Since superposition does not apply to nonlinear transfer functions, the behavior of such a transfer for strong undesired signals is different from the behavior for weak desired signals, which is exploited here. In the presence of a 0 to +11 dBm RF blocker, a voltage gain for weak signals of respectively 7.6–9.4 dB and IIP3 >4 dBm are measured, while the blocker is suppressed by more than 35 dB. In case of no blocker present at the input, the circuit is set to amplifier mode providing 17 dB of voltage gain and an IIP3 of 6.6 dBm while consuming 3 mW. Application areas are coexistence in multi-radio devices and dealing with TX leakage in FDD systems.

U2 - 10.1007/978-3-319-01080-9_14

DO - 10.1007/978-3-319-01080-9_14

M3 - Chapter

SN - 978-3-319-01079-3

SP - 249

EP - 263

BT - Frequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013

A2 - Baschirotto, A.

A2 - Makinwa, K.A.A.

A2 - Harpe, P.J.A.

PB - Springer

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Janssen EJG, Habibi H, Milosevic D, Baltus PGM, Roermund, van AHM. Smart self-interference suppression by exploiting a nonlinearity. In Baschirotto A, Makinwa KAA, Harpe PJA, editors, Frequency references, power management for SoC, and smart wireless interfaces : advances in analog circuit design 2013. Dordrecht: Springer. 2013. p. 249-263 https://doi.org/10.1007/978-3-319-01080-9_14