Attenuation of electromagnetic pulse using high temperature superconductor

Tseng Hsin Chiu; Tung Wuu Huang; Chung Hsi Liang; Dow Chieh Niu; Yuen Wuu Suen; Kuo Hsing Cheng

doi:10.1109/TASC.2007.899963

Attenuation of electromagnetic pulse using high temperature superconductor

Tseng Hsin Chiu, Tung Wuu Huang, Chung Hsi Liang, Dow Chieh Niu, Yuen Wuu Suen, Kuo Hsing Cheng

Department of Electrical Engineering

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

Abstract

A high-speed thin-film resistive type fault current limiter (FCL) manufactured from YBCO thin film has been developed. It is designed to protect the front-end of the communication systems from damage due to electromagnetic pulses caused by thunder strikes or unexpected radiations. A 50 Ω coplanar waveguide (CPW), fabricated on an YBCO thin film coated on an MgO or LaAlO ₃ substrate up to 3 inch diameter, is used as the FCL. The resistivity of the YBCO central stripe will raise many orders of magnitude in a very short time automatically if the current pulse exceeds the critical current (I_c) of the superconductor film. We design a meandering pattern to increase the effective length of the CPW, and also the normal state resistance. This FCL design is shown to have a switching time less than 10 ns, and the capability of tackling electromagnetic pulses with very large magnitude. The samples were cooled below 89 K in vacuum by a closed-cycle refrigerator, and tested with pulse-modulated 2 GHz electromagnetic signals of power up to 50 dBm. Our results show an 18 dB power attenuation while the input power exceeds 34-44 dBm at various temperatures slightly below T_c.

Original language	English
Pages (from-to)	1831-1834
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	17
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2007.899963
State	Published - Jun 2007

Keywords

CPW
Fault current limiter
Superconducting transmission lines
Thin film devices

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10.1109/TASC.2007.899963

Cite this

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title = "Attenuation of electromagnetic pulse using high temperature superconductor",

abstract = "A high-speed thin-film resistive type fault current limiter (FCL) manufactured from YBCO thin film has been developed. It is designed to protect the front-end of the communication systems from damage due to electromagnetic pulses caused by thunder strikes or unexpected radiations. A 50 Ω coplanar waveguide (CPW), fabricated on an YBCO thin film coated on an MgO or LaAlO 3 substrate up to 3 inch diameter, is used as the FCL. The resistivity of the YBCO central stripe will raise many orders of magnitude in a very short time automatically if the current pulse exceeds the critical current (Ic) of the superconductor film. We design a meandering pattern to increase the effective length of the CPW, and also the normal state resistance. This FCL design is shown to have a switching time less than 10 ns, and the capability of tackling electromagnetic pulses with very large magnitude. The samples were cooled below 89 K in vacuum by a closed-cycle refrigerator, and tested with pulse-modulated 2 GHz electromagnetic signals of power up to 50 dBm. Our results show an 18 dB power attenuation while the input power exceeds 34-44 dBm at various temperatures slightly below Tc.",

keywords = "CPW, Fault current limiter, Superconducting transmission lines, Thin film devices",

author = "Chiu, {Tseng Hsin} and Huang, {Tung Wuu} and Liang, {Chung Hsi} and Niu, {Dow Chieh} and Suen, {Yuen Wuu} and Cheng, {Kuo Hsing}",

note = "Funding Information: Manuscript received August 29, 2006. This work was supported by the Chung-Shan Institute of Science & Technology, Taiwan, R.O.C. T.-H. Chiu and K.-H. Cheng are with VLSI Systems Lab, Department of Electrical Engineering, Nation Center University, Jhongli, Taiwan 325, R.O.C. T.-W. Huang, C.-H. Liang and D.-C. Niu are with Chung-Shan Institute of Science & Technology, Tao-Yuan, Taiwan 325, R.O.C. (e-mail: twhuang@mail2000.com.tw). Y.-W. Suen is with the Department of Physics, National Chung Hsing University, Taichung, Taiwan, 402, R.O.C., and National Nano Device Laboratories, Hsinchu, Taiwan 300, R.O.C. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2007.899963",

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AU - Chiu, Tseng Hsin

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AU - Liang, Chung Hsi

AU - Niu, Dow Chieh

AU - Suen, Yuen Wuu

AU - Cheng, Kuo Hsing

N1 - Funding Information: Manuscript received August 29, 2006. This work was supported by the Chung-Shan Institute of Science & Technology, Taiwan, R.O.C. T.-H. Chiu and K.-H. Cheng are with VLSI Systems Lab, Department of Electrical Engineering, Nation Center University, Jhongli, Taiwan 325, R.O.C. T.-W. Huang, C.-H. Liang and D.-C. Niu are with Chung-Shan Institute of Science & Technology, Tao-Yuan, Taiwan 325, R.O.C. (e-mail: twhuang@mail2000.com.tw). Y.-W. Suen is with the Department of Physics, National Chung Hsing University, Taichung, Taiwan, 402, R.O.C., and National Nano Device Laboratories, Hsinchu, Taiwan 300, R.O.C. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2007.899963

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N2 - A high-speed thin-film resistive type fault current limiter (FCL) manufactured from YBCO thin film has been developed. It is designed to protect the front-end of the communication systems from damage due to electromagnetic pulses caused by thunder strikes or unexpected radiations. A 50 Ω coplanar waveguide (CPW), fabricated on an YBCO thin film coated on an MgO or LaAlO 3 substrate up to 3 inch diameter, is used as the FCL. The resistivity of the YBCO central stripe will raise many orders of magnitude in a very short time automatically if the current pulse exceeds the critical current (Ic) of the superconductor film. We design a meandering pattern to increase the effective length of the CPW, and also the normal state resistance. This FCL design is shown to have a switching time less than 10 ns, and the capability of tackling electromagnetic pulses with very large magnitude. The samples were cooled below 89 K in vacuum by a closed-cycle refrigerator, and tested with pulse-modulated 2 GHz electromagnetic signals of power up to 50 dBm. Our results show an 18 dB power attenuation while the input power exceeds 34-44 dBm at various temperatures slightly below Tc.

AB - A high-speed thin-film resistive type fault current limiter (FCL) manufactured from YBCO thin film has been developed. It is designed to protect the front-end of the communication systems from damage due to electromagnetic pulses caused by thunder strikes or unexpected radiations. A 50 Ω coplanar waveguide (CPW), fabricated on an YBCO thin film coated on an MgO or LaAlO 3 substrate up to 3 inch diameter, is used as the FCL. The resistivity of the YBCO central stripe will raise many orders of magnitude in a very short time automatically if the current pulse exceeds the critical current (Ic) of the superconductor film. We design a meandering pattern to increase the effective length of the CPW, and also the normal state resistance. This FCL design is shown to have a switching time less than 10 ns, and the capability of tackling electromagnetic pulses with very large magnitude. The samples were cooled below 89 K in vacuum by a closed-cycle refrigerator, and tested with pulse-modulated 2 GHz electromagnetic signals of power up to 50 dBm. Our results show an 18 dB power attenuation while the input power exceeds 34-44 dBm at various temperatures slightly below Tc.

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Attenuation of electromagnetic pulse using high temperature superconductor

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