A multi-band WCDMA SAW-less receivers with frequency selective feedback loop

Sungho Beck; Stephen T. Kim; Kyutae Lim; Manos M. Tentzeris; Joy Laskar

doi:10.1109/MWSCAS.2011.6026387

A multi-band WCDMA SAW-less receivers with frequency selective feedback loop

Sungho Beck^*
, Stephen T. Kim
, Kyutae Lim
, Manos M. Tentzeris
, Joy Laskar

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Abstrakti

For frequency division duplex (FDD) wide band code division multiple access (WCDMA) system, transmit (TX) signal leakage at the receiver input degrades the receiver performance. Previously, to cancel the TX leakage, a frequency selective feedback was proposed, but it had the unpredictable feedback loop characteristic due to the uncertainty of the duplexer impedance. This paper proposes a new method to achieve a predictable feedback loop characteristic. In addition, to achieve the TX leakage cancellation for multi-band, a local oscillator (LO) phase shift technique is also presented. The proposed receiver which was composed of high- and low-band LNAs and mixers, the TX canceller, and the LO shifter was implemented using 0.18-μm CMOS process and is under fabrication. Simulation results met the required specifications which were delivered from the WCDMA specifications.

Alkuperäiskieli	Englanti
Otsikko	54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
DOI - pysyväislinkit	https://doi.org/10.1109/MWSCAS.2011.6026387
Tila	Julkaistu - 2011
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 - Seoul, Etelä-Korea Kesto: 7 elok. 2011 → 10 elok. 2011

Conference

Conference	54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
Maa/Alue	Etelä-Korea
Kaupunki	Seoul
Ajanjakso	7/08/11 → 10/08/11

!!ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Pääsy asiakirjaan

10.1109/MWSCAS.2011.6026387

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Link to publication in Scopus

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@inproceedings{cf7baf42e21945dea0fc19da866fbd0b,

title = "A multi-band WCDMA SAW-less receivers with frequency selective feedback loop",

abstract = "For frequency division duplex (FDD) wide band code division multiple access (WCDMA) system, transmit (TX) signal leakage at the receiver input degrades the receiver performance. Previously, to cancel the TX leakage, a frequency selective feedback was proposed, but it had the unpredictable feedback loop characteristic due to the uncertainty of the duplexer impedance. This paper proposes a new method to achieve a predictable feedback loop characteristic. In addition, to achieve the TX leakage cancellation for multi-band, a local oscillator (LO) phase shift technique is also presented. The proposed receiver which was composed of high- and low-band LNAs and mixers, the TX canceller, and the LO shifter was implemented using 0.18-μm CMOS process and is under fabrication. Simulation results met the required specifications which were delivered from the WCDMA specifications.",

author = "Sungho Beck and Kim, \{Stephen T.\} and Kyutae Lim and Tentzeris, \{Manos M.\} and Joy Laskar",

year = "2011",

doi = "10.1109/MWSCAS.2011.6026387",

language = "English",

isbn = "9781612848570",

booktitle = "54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011",

note = "54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 ; Conference date: 07-08-2011 Through 10-08-2011",

}

Beck, S, Kim, ST, Lim, K, Tentzeris, MM & Laskar, J 2011, A multi-band WCDMA SAW-less receivers with frequency selective feedback loop. julkaisussa 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011., 6026387, 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011, Seoul, Etelä-Korea, 7/08/11. https://doi.org/10.1109/MWSCAS.2011.6026387

TY - GEN

T1 - A multi-band WCDMA SAW-less receivers with frequency selective feedback loop

AU - Beck, Sungho

AU - Kim, Stephen T.

AU - Lim, Kyutae

AU - Tentzeris, Manos M.

AU - Laskar, Joy

PY - 2011

Y1 - 2011

N2 - For frequency division duplex (FDD) wide band code division multiple access (WCDMA) system, transmit (TX) signal leakage at the receiver input degrades the receiver performance. Previously, to cancel the TX leakage, a frequency selective feedback was proposed, but it had the unpredictable feedback loop characteristic due to the uncertainty of the duplexer impedance. This paper proposes a new method to achieve a predictable feedback loop characteristic. In addition, to achieve the TX leakage cancellation for multi-band, a local oscillator (LO) phase shift technique is also presented. The proposed receiver which was composed of high- and low-band LNAs and mixers, the TX canceller, and the LO shifter was implemented using 0.18-μm CMOS process and is under fabrication. Simulation results met the required specifications which were delivered from the WCDMA specifications.

AB - For frequency division duplex (FDD) wide band code division multiple access (WCDMA) system, transmit (TX) signal leakage at the receiver input degrades the receiver performance. Previously, to cancel the TX leakage, a frequency selective feedback was proposed, but it had the unpredictable feedback loop characteristic due to the uncertainty of the duplexer impedance. This paper proposes a new method to achieve a predictable feedback loop characteristic. In addition, to achieve the TX leakage cancellation for multi-band, a local oscillator (LO) phase shift technique is also presented. The proposed receiver which was composed of high- and low-band LNAs and mixers, the TX canceller, and the LO shifter was implemented using 0.18-μm CMOS process and is under fabrication. Simulation results met the required specifications which were delivered from the WCDMA specifications.

UR - https://www.scopus.com/pages/publications/80053630391

U2 - 10.1109/MWSCAS.2011.6026387

DO - 10.1109/MWSCAS.2011.6026387

M3 - Conference contribution

AN - SCOPUS:80053630391

SN - 9781612848570

BT - 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011

T2 - 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011

Y2 - 7 August 2011 through 10 August 2011

ER -

A multi-band WCDMA SAW-less receivers with frequency selective feedback loop

Abstrakti

Conference

!!ASJC Scopus subject areas

Pääsy asiakirjaan

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