Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Investigation of Characterization and Fabrication High-Temperature Superconducting Multiplexer by Pulse laser Deposition

레이저 공정을 이용한 고온초전도 멀티플렉서의 제작과 특성 분석

  • Kim, Cheol-Su (Department of Electrical Engineering, Yonsei University) ;
  • Song, Seok-Chun (Department of Electrical Engineering, Yonsei University) ;
  • Lee, Sang-Yeol (Department of Electrical Engineering, Yonsei University)
  • 김철수 (연세대학교 전기공학과) ;
  • 송석천 (연세대학교 전기공학과) ;
  • 이상렬 (연세대학교 전기공학과)
  • Published : 1999.07.19
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Abstract

To fabricate superconducting multiplexers with narrow pass band characteristics and reduce the physical size of device, we have designed multiplexer using hair-pin type filters with the center frequency of 13.6 GHz. Multiplexers have been fabricated superconductor(HTS), because It has low surface resistance. The $YBa_2Cu_3O_{7-{\delta}}$(YBCO) films were deposited on MgO substrates$(20{\times}20{\times}0.5mm^3)$ by using pulsed laser deposition and conventional photo-lithographic methods were used to pattern the multiplexer. Epitaxial YBCO films were grown on(100) MgO substrates and showed strongly c_axis orientations observed by X-ray diffraction technique. Superconducting transition temperatures were measured to be about 89K. Simulated results of superconducting multiplexer consisting of hair-pin type filters show the insertion loss of about 1.2dB. The measured frequency response will be compared with the simulated results.

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