Unequally Spaced Scalable dual-polarized Ultra-wideband Antenna Array with Slot Positioning for Large Scale Array. Issue 4 (19th May 2022)

• Record Type: Journal Article
• Authors: Zhu, Yuanjiang; Li, Xiangxiang; Tao, Jing; Jiang, Weixiang
• Is Part Of: Electromagnetics. Volume 42:Issue 4(2022)
• Page Start: 309
• Page End: 326
• Publication Date: 2022-05-19
• Subjects: dual-polarization -- scalable -- ultrawideband -- unequally spaced; Electromagnetism -- Periodicals; 537
• DOI: 10.1080/02726343.2022.2110015
• Languages: English
• ISSNs: 0272-6343

Abstract

ABSTRACT: article shows a splicable dual-pol. ultra-wideband array antenna used in large-scale arrays. An unequal-spaced metal bullet structure is used as the basic antenna element, and the gradual slot for radiation is spliced by the metal bullet radiator. The bullet structure is directly and vertically interconnected through elastic RF connectors. The antenna structure can be independently installed on the metal backplane and positioned through the slots on the metal backplane to ensure good electrical performance. Compared with the antenna structure processed by PCB technology, this type of antenna can effectively avoid the generation of surface wave modes, thereby ensuring that there is no VSWR singularity in the broadband. The proposed antenna array can realize ±45°scanning in azimuth plane and ±35°scanning in elevation plane within four octave bands. Based on the proposed antenna, a 10*10 prototype was tested. The measured results were consistent with the simulation results.