Abstract

A direct conversion from spoof surface plasmon polaritons (SSPPs) to radiation mode is proposed. A modified parallel two-wire SSPP transmission line is the key to the conversion, which is composed of traditional unit cells with slots among them. Taking advantages of the slots, the phase velocity of electromagnetic waves is larger than that of light, leading to the radiation. Both simulated and measured results show that the radiation occurs from 7.6 to 11 GHz, and the radiation angle keeps nearly stable in the whole operating frequency band, which can be predicted by theoretical calculation. The average gain and efficiency is 6.41 dBi and around 90%, respectively. The simple structure with flexibly tunable operating frequency makes the proposed design promising in planar integrated communication systems.

© 2021 Optical Society of America

Frequency controlled beam scanning characteristic realized using a compact slow wave transmission line

Jia-Yuan Yin, Xiao Yu Du, Yuan Ning, Jing-Ya Deng, and Li-Xin Guo
Appl. Opt. 60(27) 8466-8471 (2021)

Ka-band beam-scanning leaky-wave antenna fed by reconfigurable spoof surface plasmon polaritons

Qi Chen, Xiaojian Fu, Jiang Luo, Yuan Fu, Yujie Liu, Lei Shi, Fei Yang, Hao Chi Zhang, Hui Feng Ma, and Tie Jun Cui
Opt. Express 31(8) 12189-12199 (2023)

High-efficient and low-coupling spoof surface plasmon polaritons enabled by V-shaped microstrips

Longfang Ye, Hao Feng, Guoxiong Cai, Yong Zhang, Bo Yan, and Qing Huo Liu
Opt. Express 27(16) 22088-22099 (2019)

Bendable transmission line and amplifier of spoof surface plasmon polaritons at microwave frequencies

Jiaxuan Wei, Weihan Li, Ling Yun Niu, Shizhao Gao, Tie Jun Cui, and Wenxuan Tang
Opt. Express 31(1) 755-764 (2023)

High-efficiency polarization conversion based on spatial dispersion modulation of spoof surface plasmon polaritons

Yongfeng Li, Jieqiu Zhang, Shaobo Qu, Hua Ma, Jiafu Wang, Jun Wang, and Zhuo Xu
Opt. Express 24(22) 24938-24946 (2016)