Abstract

In this paper, we present to achieve a broadband miniaturized transmission waveguide based on complementary spoof surface plasmon polaritons (CSSPPs). For this purpose, a novel SSPP design that consists of a corrugated slot line and a group of additional interdigital structures (ISs) is proposed, which brings in an extra solution to control the cut-off property of CSSPPs. The transmission cut-off frequency of the proposed design decreases with the increasing of the number of the ISs. Since the width of CSSPP waveguide is directly related to the operating frequency, the degree of miniaturization can be modulated freely by carefully choosing the number of the ISs. A prototype of device with four-ISs introduced is designed and fabricated. And the cut-off frequency of the design decreases from 10 GHz to 5.3 GHz, when the ISs are added. Experimental results agree well with the numerical simulations. The proposed design illustrates great potentials in modern plasmonic integrated circuits.

Details

Title
Wideband Miniaturized Design of Complementary Spoof Surface Plasmon Polaritons Waveguide Based on Interdigital Structures
Author
Pan Bai Cao 1 ; Luo, Guo Qing 2 ; Liao Zhen 1 ; Cai Jia Lin 2 ; Cai Ben Geng 1 

 Hangzhou Dianzi University, College of Electromagnetics and Information Engineering, Hangzhou, China (GRID:grid.411963.8) (ISNI:0000 0000 9804 6672); Southeast University, State Key Laboratory of Millimetre Waves, School of Information Science and Engineering, Nanjing, China (GRID:grid.263826.b) (ISNI:0000 0004 1761 0489) 
 Hangzhou Dianzi University, College of Electromagnetics and Information Engineering, Hangzhou, China (GRID:grid.411963.8) (ISNI:0000 0000 9804 6672) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2362206393
Copyright
This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.