Design of a quad-band bandpass filter based on 13-mode resonator

被引：0

作者：

Wang, Litian ^{[1
]}

Chen, Xuan ^{[1
]}

Li, Yuqi ^{[1
]}

Zhang, Hongyuan ^{[1
]}

Li, Cuiping ^{[1
]}

Qian, Lirong ^{[1
]}

Tian, Yahui ^{[2
]}

Li, Honglang ^{[3
]}

Miao, Lin ^{[1
]}

Xiong, Yang ^{[1
]}

Li, Dan ^{[4
]}

机构：

[1] Tianjin Univ Technol, Sch Integrated Circuit Sci & Engn, Tianjin Key Lab Film Elect & Commun Devices, Tianjin, Peoples R China

[2] Chinese Acad Sci, Inst Acoust, Beijing, Peoples R China

[3] Natl Ctr NanoSci & Technol, Beijing, Peoples R China

[4] Tianjin Univ Technol, Sch Mech Engn, Tianjin Key Lab Adv Mechatron Syst Design & Intell, Tianjin, Peoples R China

来源：

ELECTROMAGNETICS | 2024年

关键词：

Bandpass filter; multi-mode resonator; quad-band bandpass; transmission zeros; wideband;

D O I：

10.1080/02726343.2024.2423165

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A quad-band microstrip bandpass filter (BPF) based on a 13-mode resonator is proposed in this article with compact size, high band-to-band isolation, and multiple transmission zeros (TZs). The proposed filter is constructed by two transmission paths from the input to the output port, which employs the transversal cancellation mechanism of two transition paths to introduce extra nine TZs. Therefore, a total of 12 TZs are located at 0.2, 1.8, 2, 3.88, 4.61, 5.24, 5.9, 9.26, 9.51, 12.32, 12.75, and 13.27 GHz, respectively, realizing high selectivity. Moreover, the designed filter can achieve quad passbands with centered frequency at 0.95, 2.78, 7.32, and 10.63 GHz for the requirement of multi-service in modern communication systems, with wide bandwidth of 235, 790, 2200, and 1540 MHz, respectively. The measured results agree well with the simulation results, which proves the feasibility of the design method.

引用

页码：614 / 629

页数：16

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