一种采用互补狭缝环谐振器加载的类表面等离激元极化激元且具有灵活陷波带的片上带通滤波器。

An On-Chip Bandpass Filter Using Complementary Slit-Ring-Resonator-Loaded Spoof Surface Plasmon Polaritons with a Flexible Notch-Band.

作者信息

Cao Xin, Wang Chenyi, Li Weiping, Cai Qiangming

机构信息

School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China.

School of Information Engineering, East China Jiaotong University, Nanchang 330013, China.

出版信息

Micromachines (Basel). 2023 Mar 6;14(3):607. doi: 10.3390/mi14030607.

DOI:10.3390/mi14030607

PMID:36985014

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10057169/

Abstract

In this paper, an on-chip bandpass filter with enhanced notch-band is proposed based on the artificial spoof surface plasmon polariton (SSPP) structure around 60 GHz. The shapes of the tabs are modified to incorporate complementary slit-ring resonators (CSRRs) between tabs. The passband is produced by the first higher mode of the SSPP structure. By adding CSRRs, two notch frequencies have been produced in the passband. The advantage of the proposed structure is that these two transmission zeros are almost independent of each other and they do not have much impact on the frequency of the passband. Based on the measured results, the proposed filter has an insertion loss of 2.6 dB with the bandwidth of 14.3 GHz. The return loss is better than 12 dB. The notch-band has a bandwidth of 3.3 GHz with a suppression level over 20 dB. The proposed filter can be applied in the shared millimeter waveband of 5G communication systems.

摘要

本文提出了一种基于60GHz左右人工类表面等离激元极化子（SSPP）结构的具有增强陷波带的片上带通滤波器。对突片的形状进行了修改，以便在突片之间引入互补开口环谐振器（CSRR）。通带由SSPP结构的第一个高阶模式产生。通过添加CSRR，在通带中产生了两个陷波频率。所提出结构的优点是这两个传输零点几乎相互独立，并且它们对通带频率没有太大影响。基于测量结果，所提出的滤波器插入损耗为2.6dB，带宽为14.3GHz。回波损耗优于12dB。陷波带带宽为3.3GHz，抑制水平超过20dB。所提出的滤波器可应用于5G通信系统的共享毫米波频段。