{"title":"紧凑的微带双带带通滤波器与四分之一波长阶跃阻抗谐振器","authors":"Songbai Zhang, Lei Zhu","doi":"10.1109/IEEE-IWS.2013.6616697","DOIUrl":null,"url":null,"abstract":"In this paper, a compact microstrip dual-band Chebyshev bandpass filter based on λ/4 stepped impedance resonators is designed, which are serially coupled by the alternative J and K inverters. Appropriate impedances and lengths of λ/4 stepped impedance resonators are synthesized based on the values of chosen dual-band K inverter. The dual-band coupled-line is then synthesized to render required J couplings at two central frequencies. Finally, a 4th-order Chebyshev dual-band bandpass filter centering at 1.8 and 5.8 GHz with respective fractional bandwidths of 15.0% and 8.0% is designed and fabricated, and measured results show consistent match with the theoretical ones.","PeriodicalId":344851,"journal":{"name":"2013 IEEE International Wireless Symposium (IWS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Compact microstrip dual-band bandpass filter with quarter-wavelength stepped impedance resonators\",\"authors\":\"Songbai Zhang, Lei Zhu\",\"doi\":\"10.1109/IEEE-IWS.2013.6616697\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a compact microstrip dual-band Chebyshev bandpass filter based on λ/4 stepped impedance resonators is designed, which are serially coupled by the alternative J and K inverters. Appropriate impedances and lengths of λ/4 stepped impedance resonators are synthesized based on the values of chosen dual-band K inverter. The dual-band coupled-line is then synthesized to render required J couplings at two central frequencies. Finally, a 4th-order Chebyshev dual-band bandpass filter centering at 1.8 and 5.8 GHz with respective fractional bandwidths of 15.0% and 8.0% is designed and fabricated, and measured results show consistent match with the theoretical ones.\",\"PeriodicalId\":344851,\"journal\":{\"name\":\"2013 IEEE International Wireless Symposium (IWS)\",\"volume\":\"27 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-04-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 IEEE International Wireless Symposium (IWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IEEE-IWS.2013.6616697\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE International Wireless Symposium (IWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IEEE-IWS.2013.6616697","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Compact microstrip dual-band bandpass filter with quarter-wavelength stepped impedance resonators
In this paper, a compact microstrip dual-band Chebyshev bandpass filter based on λ/4 stepped impedance resonators is designed, which are serially coupled by the alternative J and K inverters. Appropriate impedances and lengths of λ/4 stepped impedance resonators are synthesized based on the values of chosen dual-band K inverter. The dual-band coupled-line is then synthesized to render required J couplings at two central frequencies. Finally, a 4th-order Chebyshev dual-band bandpass filter centering at 1.8 and 5.8 GHz with respective fractional bandwidths of 15.0% and 8.0% is designed and fabricated, and measured results show consistent match with the theoretical ones.
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