R. Kojouharov, T. Nurgaliev, M. Taslakov, R.A. Chakalov, T. Donchev, A. Spasov, Z. Ivanov, I. Angelov, L. Johansson, E. Kollberg, T. Claeson
{"title":"基于HTSC谐振腔的高热稳定性微波振荡器","authors":"R. Kojouharov, T. Nurgaliev, M. Taslakov, R.A. Chakalov, T. Donchev, A. Spasov, Z. Ivanov, I. Angelov, L. Johansson, E. Kollberg, T. Claeson","doi":"10.1109/FREQ.1996.560253","DOIUrl":null,"url":null,"abstract":"Recent developments in high temperature superconducting (HTSC) thin films have made possible the construction of microwave resonators with a very high Q values because of the significantly lower surface resistance than that of normal metals. In this paper microwave characteristics of microstrip resonators fabricated from YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// and Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ thin films were studied and their application for stabilization of a microwave oscillator was shown. Two oscillators were fabricated and tested, one at 4 GHz with YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// meander-type resonator and a hybrid oscillator implemented on RT/Duroid substrate and Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ linear microstrip resonator operated at 12 GHz. The designs were parallel feedback mode oscillators and transmission-type high-Q HTSC resonators were used as bandpass filters. A frequency instability of the hybrid oscillator with Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ resonator of -0.16 ppm/K at 77 K was achieved which exceeds that possible with state-of-the-art DROs and SAWOs at 12 GHz.","PeriodicalId":140391,"journal":{"name":"Proceedings of 1996 IEEE International Frequency Control Symposium","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"High thermal stability microwave oscillator based on HTSC resonator\",\"authors\":\"R. Kojouharov, T. Nurgaliev, M. Taslakov, R.A. Chakalov, T. Donchev, A. Spasov, Z. Ivanov, I. Angelov, L. Johansson, E. Kollberg, T. Claeson\",\"doi\":\"10.1109/FREQ.1996.560253\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Recent developments in high temperature superconducting (HTSC) thin films have made possible the construction of microwave resonators with a very high Q values because of the significantly lower surface resistance than that of normal metals. In this paper microwave characteristics of microstrip resonators fabricated from YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// and Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ thin films were studied and their application for stabilization of a microwave oscillator was shown. Two oscillators were fabricated and tested, one at 4 GHz with YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// meander-type resonator and a hybrid oscillator implemented on RT/Duroid substrate and Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ linear microstrip resonator operated at 12 GHz. The designs were parallel feedback mode oscillators and transmission-type high-Q HTSC resonators were used as bandpass filters. A frequency instability of the hybrid oscillator with Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ resonator of -0.16 ppm/K at 77 K was achieved which exceeds that possible with state-of-the-art DROs and SAWOs at 12 GHz.\",\"PeriodicalId\":140391,\"journal\":{\"name\":\"Proceedings of 1996 IEEE International Frequency Control Symposium\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 1996 IEEE International Frequency Control Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/FREQ.1996.560253\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 1996 IEEE International Frequency Control Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FREQ.1996.560253","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
High thermal stability microwave oscillator based on HTSC resonator
Recent developments in high temperature superconducting (HTSC) thin films have made possible the construction of microwave resonators with a very high Q values because of the significantly lower surface resistance than that of normal metals. In this paper microwave characteristics of microstrip resonators fabricated from YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// and Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ thin films were studied and their application for stabilization of a microwave oscillator was shown. Two oscillators were fabricated and tested, one at 4 GHz with YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// meander-type resonator and a hybrid oscillator implemented on RT/Duroid substrate and Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ linear microstrip resonator operated at 12 GHz. The designs were parallel feedback mode oscillators and transmission-type high-Q HTSC resonators were used as bandpass filters. A frequency instability of the hybrid oscillator with Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ resonator of -0.16 ppm/K at 77 K was achieved which exceeds that possible with state-of-the-art DROs and SAWOs at 12 GHz.