Design and performance of a compact forward-coupled HTS microstrip filter for a GSM system

Guoyong Zhang; MH Zhu; BS Cao; WJ He; XB Guo; S He; Bin Liu; Yi Wang; YG Zhao; ML Liu; ZH Han; BX Gao

doi:10.1109/TASC.2002.806311

Design and performance of a compact forward-coupled HTS microstrip filter for a GSM system

Guoyong Zhang, MH Zhu, BS Cao, WJ He, XB Guo, S He, Bin Liu, Yi Wang, YG Zhao, ML Liu, ZH Han, BX Gao

Electronic, Electrical and Systems Engineering

Research output: Contribution to journal › Article

17 Citations (Scopus)

Abstract

A practical design technique for a compact forward-coupled microstrip bandpass filter structure is introduced based on a computer-aided simulation and optimization software TUMIC. The structure consists of a parallel array of fully aligned half-wavelength resonators. Aimed at the application in the front-end receiver of a GSM base station, a 9-pole high-temperature superconductor filter with 2.6% fractional bandwidth at 1732.5 MHz was designed and fabricated using double-sided YBCO thin films on a 30-mm x 30-mm X 0.5-mm LaAlO3 wafer. The S-parameter measurements show a good agreement with the simulated results. At 30 K, the filter has less than 0.4-dB insertion loss, 0.3-dB passband ripple, and better than 12-dB return loss.

Original language	English
Pages (from-to)	1897-1901
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	12
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2002.806311
Publication status	Published - 1 Dec 2002

Keywords

microstrip bandpass filter
high-temperature superconductor (HTS)
wireless communications

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10.1109/TASC.2002.806311

Cite this

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title = "Design and performance of a compact forward-coupled HTS microstrip filter for a GSM system",

abstract = "A practical design technique for a compact forward-coupled microstrip bandpass filter structure is introduced based on a computer-aided simulation and optimization software TUMIC. The structure consists of a parallel array of fully aligned half-wavelength resonators. Aimed at the application in the front-end receiver of a GSM base station, a 9-pole high-temperature superconductor filter with 2.6% fractional bandwidth at 1732.5 MHz was designed and fabricated using double-sided YBCO thin films on a 30-mm x 30-mm X 0.5-mm LaAlO3 wafer. The S-parameter measurements show a good agreement with the simulated results. At 30 K, the filter has less than 0.4-dB insertion loss, 0.3-dB passband ripple, and better than 12-dB return loss.",

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author = "Guoyong Zhang and MH Zhu and BS Cao and WJ He and XB Guo and S He and Bin Liu and Yi Wang and YG Zhao and ML Liu and ZH Han and BX Gao",

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journal = "IEEE Transactions on Applied Superconductivity",

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T1 - Design and performance of a compact forward-coupled HTS microstrip filter for a GSM system

AU - Zhang, Guoyong

AU - Zhu, MH

AU - Cao, BS

AU - He, WJ

AU - Guo, XB

AU - He, S

AU - Liu, Bin

AU - Wang, Yi

AU - Zhao, YG

AU - Liu, ML

AU - Han, ZH

AU - Gao, BX

PY - 2002/12/1

Y1 - 2002/12/1

N2 - A practical design technique for a compact forward-coupled microstrip bandpass filter structure is introduced based on a computer-aided simulation and optimization software TUMIC. The structure consists of a parallel array of fully aligned half-wavelength resonators. Aimed at the application in the front-end receiver of a GSM base station, a 9-pole high-temperature superconductor filter with 2.6% fractional bandwidth at 1732.5 MHz was designed and fabricated using double-sided YBCO thin films on a 30-mm x 30-mm X 0.5-mm LaAlO3 wafer. The S-parameter measurements show a good agreement with the simulated results. At 30 K, the filter has less than 0.4-dB insertion loss, 0.3-dB passband ripple, and better than 12-dB return loss.

AB - A practical design technique for a compact forward-coupled microstrip bandpass filter structure is introduced based on a computer-aided simulation and optimization software TUMIC. The structure consists of a parallel array of fully aligned half-wavelength resonators. Aimed at the application in the front-end receiver of a GSM base station, a 9-pole high-temperature superconductor filter with 2.6% fractional bandwidth at 1732.5 MHz was designed and fabricated using double-sided YBCO thin films on a 30-mm x 30-mm X 0.5-mm LaAlO3 wafer. The S-parameter measurements show a good agreement with the simulated results. At 30 K, the filter has less than 0.4-dB insertion loss, 0.3-dB passband ripple, and better than 12-dB return loss.

KW - microstrip bandpass filter

KW - high-temperature superconductor (HTS)

KW - wireless communications

U2 - 10.1109/TASC.2002.806311

DO - 10.1109/TASC.2002.806311

M3 - Article

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SP - 1897

EP - 1901

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 4

ER -

Design and performance of a compact forward-coupled HTS microstrip filter for a GSM system

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Keywords

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