New Type of Microwave High-$T_{c}$ Superconductor Microstrip Resonator and Its Application Prospects
| Autor: | Vladimir Zolotaryov, Liang Sun, Nickolay T. Cherpak, Yusheng He, Xueqiang Zhang, Jia Wang, Alexander A. Barannik, Vladimir Glamazdin |
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| Rok vydání: | 2017 |
| Předmět: |
Superconductivity
Materials science business.industry 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics Epitaxy 01 natural sciences Microstrip Electronic Optical and Magnetic Materials law.invention Resonator Planar law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Optoelectronics Electrical and Electronic Engineering Whispering-gallery wave Photolithography 010306 general physics business Microwave |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 27:1-4 |
| ISSN: | 1558-2515 1051-8223 |
| DOI: | 10.1109/tasc.2016.2631882 |
| Popis: | A new type of planar high-Tc superconductor (HTS) resonator, proposed by the authors, is described. Its feature is excitement with whispering gallery modes (WGM) unlike the known microstrip resonators excited with the lower modes. The resonant structure of two-planar disks and two microstrip lines was simulated and made on the basis of a DyBa 2 Cu 3 O 7-δ superconductor epitaxial film of 600-nm thickness using photolithography technique. The film was deposited on MgO single crystal substrate of thickness h = 0.5 mm. Microwave response in a form of Q-factor and resonant frequency depending on temperature was measured in Kand Ka-bands. The obtained results show higher values of Q-factor of WGM microstrip HTS resonators in comparison with the known HTS microstrip resonators with lower modes. In the authors' opinion, these resonators open prospects for development of new planar microwave devices and techniques. The response of HTS disk resonators obtained earlier and about six months later at approximately the same conditions showed the lowering Q-factor, which may be explained by the degradation of HTS film properties and requires further study. |
| Databáze: | OpenAIRE |
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