Novel dual-band antenna for multi-mode GNSS applications

作     者：Hongmei Liu Shaojun Fang Zhongbao Wang 

作者机构：School of Information Science and Technology Dalian Maritime University 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2015年第26卷第1期

页      面：19-25页

核心收录：

学科分类：08[工学] 080401[工学-精密仪器及机械] 081105[工学-导航、制导与控制] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 

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) 

主　　题：active antenna dual-band antenna multi-path interference 

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.