Novel dual-band antenna for multi-mode GNSS applications  

作　　者：Hongmei Liu Shaojun Fang Zhongbao Wang 

机构地区：[1]School of Information Science and Technology, Dalian Maritime University

出　　处：《Journal of Systems Engineering and Electronics》2015年第1期19-25,共7页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61071044);the Traffic Applied Basic Research Project of the Ministry of Transport of China(2010-329-225-030);the Doctor Startup Foundation of Liaoning Province(20141103);the Scientific Research Project of the Department of Education of Liaoning Province(L2013196);the Fundamental Research Funds for the Central Universities(2014YB05)

摘　　要：A novel dual-band antenna is proposed for mitigating the multi-path interference in the global navigation satellite system（GNSS） applications. The radiation patches consist of a shortedannular-ring reduced-surface-wave（SAR-RSW） element and an inverted-shorted-annular-ring reduced-surface-wave（ISAR-RSW）element. One key feature of the design is the proximity-coupled probe feeds to increase impedance bandwidth. The other is the defected ground structure band rejection filters to suppress the interaction effect between the SAR-RSW and the ISAR-RSW elements. In addition, trans-directional couplers are used to obtain tight coupling. Measurement results indicate that the antenna has a larger than 10 d B return loss bandwidth and a less than 3 d B axial-ratio（AR） bandwidth in the range of（1.164 – 1.255） GHz and（1.552 – 1.610） GHz. The gain of the passive antenna in the whole operating band is more than 7 d Bi.A novel dual-band antenna is proposed for mitigating the multi-path interference in the global navigation satellite system（GNSS） applications. The radiation patches consist of a shortedannular-ring reduced-surface-wave（SAR-RSW） element and an inverted-shorted-annular-ring reduced-surface-wave（ISAR-RSW）element. One key feature of the design is the proximity-coupled probe feeds to increase impedance bandwidth. The other is the defected ground structure band rejection filters to suppress the interaction effect between the SAR-RSW and the ISAR-RSW elements. In addition, trans-directional couplers are used to obtain tight coupling. Measurement results indicate that the antenna has a larger than 10 d B return loss bandwidth and a less than 3 d B axial-ratio（AR） bandwidth in the range of（1.164 – 1.255） GHz and（1.552 – 1.610） GHz. The gain of the passive antenna in the whole operating band is more than 7 d Bi.

关 键 词：active antenna dual-band antenna multi-path interference 

分 类 号：TN965.2[电子电信—信号与信息处理]