Wideband printed slot antenna using Koch fractal metasurface structure. Issue 3 (28th November 2019)

• Record Type: Journal Article
• Authors: Liu, Guo; Gu, Jie; Gao, Zhaozhao; Xu, Min
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 30:Issue 3(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-11-28
• Subjects: fractal metasurface -- impedance bandwidth -- Koch slot -- wideband antenna; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.22058
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: A novel wideband slot antenna with Koch fractal metasurface structure is presented in this letter. Using Koch metasurface as a slot edge, the proposed antenna obtains excellent performance in bandwidth. For optimal bandwidth, optimization is done for both iteration angle (IA) and iteration factor (IF) at each iteration order (IO). The measured results show that the impedance bandwidth of the optimized antenna can reach about 1.75 octaves (1.45‐4.86 GHz) for VSWR ≤ 2. In addition, stable radiation patterns are observed over the whole operating band of the proposed antenna.