Design of a High-Power Superconducting Filter with Novel DGS Structures

Tianning Zheng; Bin Wei; Bisong Cao; Xubo Guo; Xiaoping Zhang; Dan Wang; Cheng Feng; Zhan Xu; Zhaojiang Shang

doi:10.1109/TASC.2014.2321976

Design of a High-Power Superconducting Filter with Novel DGS Structures

Tianning Zheng
, Bin Wei
, Bisong Cao
, Xubo Guo
, Xiaoping Zhang
, Dan Wang
, Cheng Feng
, Zhan Xu
, Zhaojiang Shang

Tsinghua University

科研成果: 期刊稿件 › 文章 › 同行评审

12 引用（Scopus）

摘要

A novel defected ground structure (DGS) resonator with improved power handling capability is proposed in this paper. The current density distribution of the DGS resonator is simulated and compared with that of the complete ground structure (CGS) resonator. Simulation shows that the maximum current density of the DGS resonator is lower than that of the CGS resonator. Two four-pole bandpass high-temperature superconducting filters centered at 2.9 GHz with a fractional bandwidth of nearly 1.5% are designed and fabricated using the DGS and CGS resonators, respectively. The measured maximum handling power is 37.3 dBm for the DGS filter at 77 K, which is higher than that of 34.1 dBm for the CGS filter.

源语言	英语
文章编号	6810165
期刊	IEEE Transactions on Applied Superconductivity
卷	24
期	6
DOI	https://doi.org/10.1109/TASC.2014.2321976
出版状态	已出版 - 1 12月 2014
已对外发布	是

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abstract = "A novel defected ground structure (DGS) resonator with improved power handling capability is proposed in this paper. The current density distribution of the DGS resonator is simulated and compared with that of the complete ground structure (CGS) resonator. Simulation shows that the maximum current density of the DGS resonator is lower than that of the CGS resonator. Two four-pole bandpass high-temperature superconducting filters centered at 2.9 GHz with a fractional bandwidth of nearly 1.5\% are designed and fabricated using the DGS and CGS resonators, respectively. The measured maximum handling power is 37.3 dBm for the DGS filter at 77 K, which is higher than that of 34.1 dBm for the CGS filter.",

keywords = "Bandpass filter, defected ground structure (DGS), high-temperature superconducting (HTS) filter, power handling capability",

author = "Tianning Zheng and Bin Wei and Bisong Cao and Xubo Guo and Xiaoping Zhang and Dan Wang and Cheng Feng and Zhan Xu and Zhaojiang Shang",

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AU - Zheng, Tianning

AU - Wei, Bin

AU - Cao, Bisong

AU - Guo, Xubo

AU - Zhang, Xiaoping

AU - Wang, Dan

AU - Feng, Cheng

AU - Xu, Zhan

AU - Shang, Zhaojiang

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N2 - A novel defected ground structure (DGS) resonator with improved power handling capability is proposed in this paper. The current density distribution of the DGS resonator is simulated and compared with that of the complete ground structure (CGS) resonator. Simulation shows that the maximum current density of the DGS resonator is lower than that of the CGS resonator. Two four-pole bandpass high-temperature superconducting filters centered at 2.9 GHz with a fractional bandwidth of nearly 1.5% are designed and fabricated using the DGS and CGS resonators, respectively. The measured maximum handling power is 37.3 dBm for the DGS filter at 77 K, which is higher than that of 34.1 dBm for the CGS filter.

AB - A novel defected ground structure (DGS) resonator with improved power handling capability is proposed in this paper. The current density distribution of the DGS resonator is simulated and compared with that of the complete ground structure (CGS) resonator. Simulation shows that the maximum current density of the DGS resonator is lower than that of the CGS resonator. Two four-pole bandpass high-temperature superconducting filters centered at 2.9 GHz with a fractional bandwidth of nearly 1.5% are designed and fabricated using the DGS and CGS resonators, respectively. The measured maximum handling power is 37.3 dBm for the DGS filter at 77 K, which is higher than that of 34.1 dBm for the CGS filter.

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Design of a High-Power Superconducting Filter with Novel DGS Structures

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