A Miniaturized Co-planar Waveguide End-fire Antenna Based on Spoof Surface Plasmon Poalritons Excited Along Metal-substrate Interface. Issue 6 (April 2019)

• Record Type: Journal Article
• Authors: Wang, He; Guo, Yipu; Fu, Xinmin; Jing, Yao
• Is Part Of: IOP conference series. Volume 490:Issue 6(2019)
• Publication Date: 2019-04
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/490/7/072065
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: With the continuous development of materials technology, the microwave-excited spoof surface plasmon polaritons (SSPPs) has drew attention. In this paper, we designed a co-planar waveguide antenna based on SSPPs mode coupling excited along metal-substrate interface to achieve good effect of end-fire radiation. This antenna consists of a spearhead-shaped co-planar waveguide (CPW) monopole antenna as radiation element, a reflector made of metallic strip and a director based on SSPPs mode coupling. The director is made of suitably sized corrugated metallic strips to realize SSPPs mode coupling. The electric fields of the radiation element are coupled into director that propagate along the strips and radiate at the end. A prototype working in X-band is designed, fabricated and measured. The numerical simulation results manifest that the designed antenna can get good directivity with high gain. The antenna works at 8.6-10.8 GHz with the directivity larger than 8.71 dBi.