A Miniaturized Co-planar Waveguide End-fire Antenna Based on Spoof Surface Plasmon Poalritons Excited Along Metal-substrate Interface

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Wang, He^1 ; Guo, Yipu^2 ; Fu, Xinmin^1 ; Jing, Yao^1

Department of Basic Sciences, Air Force Engineering University, Xi'an, China^1

School of Management, Shanghai University of Engineering Science, Shanghai, China^2

关键词: Continuous development;    End-fire antennas;    High gain;    Materials technology;    Metal substrate;    Metallic strips;    Mode coupling;    Spoof surface plasmons;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/7/072065/pdf
DOI  :  10.1088/1757-899X/490/7/072065

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.