A wideband planar magneto‐electric tapered slot antenna with wide beamwidth. Issue 11 (9th August 2019)

• Record Type: Journal Article
• Authors: Yang, Kai‐Wen; Zhang, Fu‐Shun; Li, Chao; Zhao, Gang; Zhang, Fan
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 29:Issue 11(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-08-09
• Subjects: magneto‐electric -- tapered slot antenna -- wide beamwidth -- wideband; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.21910
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: In this article, a wideband planar magneto‐electric (ME) tapered slot antenna (TSA) with wide beamwidth both in the E‐plane and H‐plane is investigated. By simply etching slots on the basic TSA, which can function as a combination of magnetic dipole and electric dipole, stable unidirectional patterns with wide beamwidth are obtained. The metal ground plane is further modified to realize wide beamwidth across a wide frequency bandwidth. Moreover, a double‐layer structure is employed to suppress the cross polarization. The measured results show that the proposed antenna can achieve an impedance bandwidth of 51.7% (7.22‐12.25 GHz) with a stable gain of 2.3 dBi, and a pattern bandwidth of 43% (7.8‐12.2GHz) for more than 135° half‐power beamwidth. The measured front‐to‐back (F/B) ratio is more than 15 dB in the pattern bandwidth.