Single-Cavity triangular substrate integrated waveguide bandpass filter with complementary triangular split ring resonator

doi:10.19682/j.cnki.1005-8885.2019.0029

中国邮电高校学报(英文) ›› 2019, Vol. 26 ›› Issue (5): 94-98.doi: 10.19682/j.cnki.1005-8885.2019.0029

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Single-Cavity triangular substrate integrated waveguide bandpass filter with complementary triangular split ring resonator

Yang Tao1, Yan Yonghong1, Zhang Yue1, Guo Huijuan1, Zhu Yongyuan2, Huang Wei1,3

1. 南京邮电大学
2. 南京大学

收稿日期:2019-01-04 修回日期:2019-07-30 出版日期:2019-10-31 发布日期:2019-11-06
通讯作者: 杨涛 E-mail:iamtyang@njupt.edu.cn
基金资助:
国家自然科学基金;国家级大学生创新创业计划项目;南京邮电大学科研基金;固体微结构国家重点实验室开放课题

Single-Cavity triangular substrate integrated waveguide bandpass filter with complementary triangular split ring resonator

Yang Tao1, Yan Yonghong1, Zhang Yue1, Guo Huijuan1, Zhu Yongyuan2, Huang Wei1,3

Received:2019-01-04 Revised:2019-07-30 Online:2019-10-31 Published:2019-11-06
Contact: Tao YANG E-mail:iamtyang@njupt.edu.cn
Supported by:
National Natural Science Foundation of China; National college students' science and technology innovation training program;Foundation of Nanjing University of Posts and Telecommunications;Foundation of the National Laboratory of Solid State Microstructures

摘要/Abstract

摘要： A novel single-cavity equilateral triangular substrate integrated waveguide (TSIW) bandpass filter (BPF) with a complementary triangular split ring resonator (CTSRR) is designed in this paper. A metallic via-hole is used to split the degenerate modes and adjust the transmission zeros (TZs) properly. Meanwhile, the CTSRR is utilized as a resonator to work together with the degenerate modes of the TSIW cavity. The resonant frequency of the CTSRR can be adjusted by its own size. Meanwhile, a TZ is observed in the lower band due to the CTSRR. Finally, a 16% 3dB fractional bandwidth (FBW) triple-mode TSIW BPF with three TZs in both lower and upper bands is simulated, fabricated, and measured. There is a good agreement between the simulated and measured ones.

关键词: Bandpass filter, Split ring resonator, Substrate integrated waveguide, Transmission zeros

Abstract: A novel single-cavity equilateral triangular substrate integrated waveguide (TSIW) bandpass filter (BPF) with a complementary triangular split ring resonator (CTSRR) is designed in this paper. A metallic via-hole is used to split the degenerate modes and adjust the transmission zeros (TZs) properly. Meanwhile, the CTSRR is utilized as a resonator to work together with the degenerate modes of the TSIW cavity. The resonant frequency of the CTSRR can be adjusted by its own size. Meanwhile, a TZ is observed in the lower band due to the CTSRR. Finally, a 16% 3dB fractional bandwidth (FBW) triple-mode TSIW BPF with three TZs in both lower and upper bands is simulated, fabricated, and measured. There is a good agreement between the simulated and measured ones.

Key words: Bandpass filter, Split ring resonator, Substrate integrated waveguide, Transmission zeros

Yang Tao, Yan Yonghong, Zhang Yue, Guo Huijuan, Zhu Yongyuan, Huang Wei, . Single-Cavity triangular substrate integrated waveguide bandpass filter with complementary triangular split ring resonator[J]. The Journal of China Universities of Posts and Telecommunications, 2019, 26(5): 94-98.

参考文献

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Single-Cavity triangular substrate integrated waveguide bandpass filter with complementary triangular split ring resonator

Single-Cavity triangular substrate integrated waveguide bandpass filter with complementary triangular split ring resonator

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