{"title":"用于无线应用的高q调谐有源带通滤波器","authors":"B. Kapilevich, R. Lukjanets","doi":"10.1109/APEIE.2000.913128","DOIUrl":null,"url":null,"abstract":"The paper presents a novel high-Q microwave tuned active bandpass filter using varactor diodes for tuning and a BJT to compensate for losses. The experimental filter with stepped resonator circuits and special coupling elements have been fabricated and tested demonstrating a good agreement with the circuit model predictions. Tuning range of 400 MHz for the active filter is achieved with the centre frequency of 1.6 GHz. A 3 dB bandwidth of 50 MHz is obtained and passband gain is typically 0.5-1.0 dB in the whole tuning range.","PeriodicalId":184476,"journal":{"name":"2000 5th International Conference on Actual Problems of Electronic Instrument Engineering Proceedings. APEIE-2000. Devoted to the 50th Anniversary of Novosibirsk State Technical University. Vol.1 (Cat","volume":"55 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"High-Q tuned active bandpass filter for wireless application\",\"authors\":\"B. Kapilevich, R. Lukjanets\",\"doi\":\"10.1109/APEIE.2000.913128\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The paper presents a novel high-Q microwave tuned active bandpass filter using varactor diodes for tuning and a BJT to compensate for losses. The experimental filter with stepped resonator circuits and special coupling elements have been fabricated and tested demonstrating a good agreement with the circuit model predictions. Tuning range of 400 MHz for the active filter is achieved with the centre frequency of 1.6 GHz. A 3 dB bandwidth of 50 MHz is obtained and passband gain is typically 0.5-1.0 dB in the whole tuning range.\",\"PeriodicalId\":184476,\"journal\":{\"name\":\"2000 5th International Conference on Actual Problems of Electronic Instrument Engineering Proceedings. APEIE-2000. Devoted to the 50th Anniversary of Novosibirsk State Technical University. Vol.1 (Cat\",\"volume\":\"55 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2000 5th International Conference on Actual Problems of Electronic Instrument Engineering Proceedings. APEIE-2000. Devoted to the 50th Anniversary of Novosibirsk State Technical University. Vol.1 (Cat\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APEIE.2000.913128\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2000 5th International Conference on Actual Problems of Electronic Instrument Engineering Proceedings. APEIE-2000. Devoted to the 50th Anniversary of Novosibirsk State Technical University. Vol.1 (Cat","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APEIE.2000.913128","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
High-Q tuned active bandpass filter for wireless application
The paper presents a novel high-Q microwave tuned active bandpass filter using varactor diodes for tuning and a BJT to compensate for losses. The experimental filter with stepped resonator circuits and special coupling elements have been fabricated and tested demonstrating a good agreement with the circuit model predictions. Tuning range of 400 MHz for the active filter is achieved with the centre frequency of 1.6 GHz. A 3 dB bandwidth of 50 MHz is obtained and passband gain is typically 0.5-1.0 dB in the whole tuning range.
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