A High Aperture Efficiency Endfire Antenna Based on Spoof Surface Plasmon Polaritons

被引：27
作者：
Fu, Qingfeng [1 ,2 ]
Ni, Hao [1 ,2 ]
Luo, Guo Qing [3 ]
Zhu, Lei [4 ]
Liu, Leilei [1 ,2 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Natl & Local Joint Engn Lab RF Integrat & Microass, Nanjing 210003, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Inst Flexible Elect Future Technol, Coll Elect & Opt Engn, Nanjing 210003, Peoples R China
[3] Hangzhou Dianzi Univ, Sch Elect & Informat, Key Lab RF Circuits & Syst, Minist Educ, Hangzhou 310018, Peoples R China
[4] Univ Macau, Dept Elect & Comp Engn, Macau 999078, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2023年 / 71卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Antennas; Transmission line antennas; Current distribution; Baluns; Loaded antennas; Horn antennas; Helical antennas; Balun; high aperture efficiency; planar endfire antenna; spoof surface plasmon polaritons (SSPPs); zero-tilted angle; MILLIMETER-WAVE ANTENNA; WIDE-BAND; HIGH-GAIN; DESIGN; GUIDE; TRANSMISSION;
D O I：
10.1109/TAP.2022.3213417
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high aperture efficiency endfire antenna based on odd mode spoof surface plasmon polaritons (SSPPs) is proposed in this article. First, a pair of symmetrical SSPPs transmission lines (TLs) is applied to an endfire antenna. To realize an endfire antenna, the SSPPs TLs are supported by a balun with a 180? phase shifter, and this makes each pair of SSPPs units works as a dipole. Next, we study the dispersive curve of this dipole-shaped SSPPs unit and get its relationship between phase constant and frequency. Then, the Hansen-Woodyard condition is used to get a maximum gain at endfire direction. Moreover, in order to excite a radiation into the free space, we compose a tapered structure with this pair of SSPPs TLs. As a result, an endfire antenna with zero tilted angle operates in the frequency range of 9-11 GHz and achieves an average gain of 11.51 dBi. In addition, this SSPPs antenna realizes a high aperture efficiency up to 13.26 dBi/?(2)(0) . The simulated and measured results are in good agreements over the operating band. The proposed SSPPs endfire antenna holds a low profile, small aperture, and it is promising for application in satellite and radar communication systems.
引用
收藏
页码：50 / 57
页数：8
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