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A wideband planar magneto‐electric tapered slot antenna with wide beamwidth
Author(s) -
Yang KaiWen,
Zhang FuShun,
Li Chao,
Zhao Gang,
Zhang Fan
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21910
Subject(s) - beamwidth , wideband , ground plane , optics , dipole antenna , physics , bandwidth (computing) , materials science , antenna (radio) , telecommunications , computer science
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.
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