Ultrawideband high‐gain dual‐polarized antenna with anti‐interference capability. Issue 9 (30th April 2019)

• Record Type: Journal Article
• Authors: Le, Tuan Tu; Tran, Huy Hung
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 29:Issue 9(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-30
• Subjects: anti‐interference -- dipole -- dual‐polarized -- high gain -- notched band -- UWB; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.21814
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: In this article, a high‐gain dual‐polarized antenna with band‐rejection capability for ultrawideband (UWB) applications is proposed. Tapered dipoles are chosen as a primary radiator to achieve UWB operation and it is reflected by a metallic cavity reflector for high gain radiation. A notch at WLAN band is realized by etching a set of four bent slots in the radiating elements. The measured results demonstrate that the proposed design with overall dimensions of 0.69 λ L × 0.69 λ L × 0.16 λ L ( λ L is free‐space wavelength at the lowest operating frequency) has operating bandwidth of 95.1% (3.2‐9.0 GHz) and the rejected frequency band from 5.0 to 5.9 GHz. Additionally, good unidirectional radiation patterns with a broadside gain from 8.1 to 11.5 dBi and radiation efficiency of better than 90% are also achieved.