{"title":"DUAL-BAND DUAL CIRCULAR POLARIZATION FILTER ANTENNA BASED ON TRANSMISSION LINE FEED","authors":"Wei Luo, Wuquan Chen, Yi Ren","doi":"10.2528/pierl22011402","DOIUrl":null,"url":null,"abstract":"|The uplink and downlink of modern satellite communication systems operate on different frequency bands. A novel dual-band dual circular polarization (cid:12)lter antenna with a single port is proposed in this paper. The dual-band characteristic of the antenna is obtained by exciting stacked patches. The antenna supports right-handed circular polarization (RHCP) at lower frequency band and left-handed circular polarization (LHCP) at higher frequency band, respectively. The feeding network is realized with a strip line, and the antenna can be equivalent to a parallel circuit. If the lower frequency patch works, the higher frequency patch presents high impedance, and vice versa. Therefore, the antenna has excellent (cid:12)ltering performance. The measurements of antenna prototype are in good agreement with the simulation results. The impedance bandwidth is 5.80{6.10 GHz and 9.20{10.64 GHz, and the axial ratio (AR) bandwidth is 40 MHz for lower band and 180 MHz for higher band, respectively. Meanwhile, the radiation pattern is stable in the operation frequency bands.","PeriodicalId":20579,"journal":{"name":"Progress in Electromagnetics Research Letters","volume":"122 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Electromagnetics Research Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2528/pierl22011402","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
|The uplink and downlink of modern satellite communication systems operate on different frequency bands. A novel dual-band dual circular polarization (cid:12)lter antenna with a single port is proposed in this paper. The dual-band characteristic of the antenna is obtained by exciting stacked patches. The antenna supports right-handed circular polarization (RHCP) at lower frequency band and left-handed circular polarization (LHCP) at higher frequency band, respectively. The feeding network is realized with a strip line, and the antenna can be equivalent to a parallel circuit. If the lower frequency patch works, the higher frequency patch presents high impedance, and vice versa. Therefore, the antenna has excellent (cid:12)ltering performance. The measurements of antenna prototype are in good agreement with the simulation results. The impedance bandwidth is 5.80{6.10 GHz and 9.20{10.64 GHz, and the axial ratio (AR) bandwidth is 40 MHz for lower band and 180 MHz for higher band, respectively. Meanwhile, the radiation pattern is stable in the operation frequency bands.
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