基于人工表面等离子体激元的超宽带带通滤波器 张胜.pdf

固体电子学研究与进展
Research & Progress of SSE
ISSN 1000-3819,CN 32-1110/TN
点。实测结
果显示该滤波器-3 dB 通带范围为 3 GHz-13 GHz，带宽达到了 125%，同时其回波损耗优于
-13 dB。
关键词：新型人工表面等离子体激元单元；超宽带；短路枝节
中图分类号：TN713
Ultra-wideband Bandpass Filter Based on Spoof Surface
Plasmon Polaritons
ZHANG Sheng WANG Ningning SONG Jianyu HUANG Ruolin WANG Jun
TANG Shoufeng
(School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, Jiangsu,
221116, China)
Abstract: Spoof surface plasmon polaritons (SSPPs) has the characteristics of low loss, high
confinement, and high transmission efficiency. It is widely used in the design of microwave devices.
In this paper, a novel SSPPs cell was proposed with more tunable parameters than conventional cell.
Based on this, a low-pass filter based on SSPPs was designed. By cascading the low-pass filter and
short-circuit stubs, an ultra-wideband band-pass filter is designed and realized. The high and low
cut-off frequencies of this ultra-wideba