High-temperature superconducting dual-mode resonator on (100) MgO substrate |
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| Authors: | Sang Yeol Lee Kwang Yong Kang El-Hang Lee and Dal Ahn |
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| Affiliation: | (1) Research Department, Electronics and Telecommunications Research Institute, Yusong, P.O. Box 106, 305-600 Taejon, Korea;(2) Department of Electronic Engineering, Soonchunhyang University, Onyang, P.O. Box 97, Chungnam, Korea |
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| Abstract: | We report, for the first time to our knowledge, a clear resonant peak split in the range of 7.7–9.7 GHz in a perturbed dual-mode disk-type resonator (DMDR) made of YBa2Cu3O7–x (YBCO) superconducting thin film on MgO substrate. Epitaxial YBCO superconducting thin films were grown on (100) MgO substrates by pulsed laser deposition technique. The critical temperature of superconducting thin film on MgO substrate was 85 K. Superconducting dualmode disk resonators were designed by microwave design software, EEsof, and patterned by photolithography and a wet-etch process. The unloaded quality factor (QUL) of the superconducting DMDR was found to be 1,312 at 77 K. We believe this type of DMDR can be utilized for dual-mode resonator-based filters for satellite communications. |
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| Keywords: | High-temperature superconductivity superconducting dual-mode resonator superconducting thin film superconducting microwave device pulsed laser deposition |
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