Design of triple‐band dual‐sense shared aperture circular polarized antenna for multimode BeiDou communication and navigation integration. Issue 8 (16th May 2022)

• Record Type: Journal Article
• Authors: Liu, Hongmei; Wang, Yao; Yu, Da; Fang, Shaojun; Wang, Zhongbao
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 32:Issue 8(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-05-16
• Subjects: BeiDou communication and navigation -- circular polarization -- high gain -- shared aperture antenna; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.23249
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: In the article, a triple‐band dual‐sense shared aperture circular polarized (CP) antenna is proposed for multimode BeiDou communication and navigation applications. By integrating the stub‐loaded rectangle patch with the shorting‐pin‐loaded ring patch, the coverage of GPS L2, GPS L5, BDS‐2 B2, BDS‐2 B3, and BDS‐1 L/S bands is realized. Besides, wideband filtering orthogonal feed network is adopted for feeding the ring patch to reduce the mutual coupling interference between the two patches. The slot‐loaded ground plane is also employed for further decoupling. For validation, a prototype is designed, fabricated, and measured. The results indicate that the polarization of right‐handed circular polarization (RHCP) is obtained at 1.2 GHz with a peak gain of 5.4 dBic for navigation service. While left‐handed circular polarization (LHCP) and RHCP are realized at 1.615 GHz and 2.49 GHz, respectively, with the peak gains of 6.7 dBic and 7.4 dBic for communication service.