Author:
Zhu Shuangshuang,Wen Pin,Liu Yuhuai
Abstract
Abstract
Compact dual-band and tri-band bandpass filters (BPFs) based on high-order modes of spoof surface plasmon polaritons (SSPPs) are proposed. By using the meander line technique, the electrical size of the proposed SSPP structure was reduced by 68% compared with the traditional rectangular-grating SSPP structure. The high-efficiency passbands are excited by high-order modes of SSPPs. Therefore, dual-band and tri-band BPFs are designed by using two and three high-order modes of SSPPs, respectively. In addition, a notched band is obtained by loading three complementary split-ring resonators (CSRRs) on the bottom layer of the tri-band BPF. Thus, a quad-band BPF is achieved.
Funder
National Key Research and Development Program
National Natural Science Foundation of China Henan provincial joint fund key project
Subject
General Physics and Astronomy,Physics and Astronomy (miscellaneous),General Engineering
Cited by
4 articles.
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