Prof.
Liang Sun
(Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China)
This article presents a novel high-temperature superconducting (HTS) dual-band bandpass filter using quadruple-mode resonator. The quadruple-mode resonator consists of one square ring resonator and two open-stubs. Through odd- and even-mode method, two even-mode frequencies of the proposed resonator can be independently controlled by two open-stubs compared with ordinary square ring resonator. Therefore, the degree of freedom of design is increased, which can meet the requirements of rapid design of multi-band bandpass filters. The filter has a compact size and the two passbands is centered at 1.8/2.4 GHz. The simulated results show that the return loss is better than 20 dB in both passbands and are consistent with the expected objective. It shows that the proposed scheme is feasible and can provide design reference for other multi-band bandpass filter designs.
Mr
Shaoqi Yan
(Henan University of Science and Technology)
Mr
Wei Xie
(Southwest China Research Institute of Electronic Equipment)
Mr
Tianyi Wang
(Southwest China Research Institute of Electronic Equipment)
Mr
Tong Wu
(Fundamentals Department of Air Force Engineering University)
Mr
Jinding Li
(Henan University of Science and Technology)
Mr
Runbo Jiang
(Henan University of Science and Technology)
Mr
Zhifeng Zheng
(East-dawning Sino-Science (Chengdu) Superconduct Technology Co. Ltd，Chengdu 610036, China)
Ms
Xiaoling Zhang
(Henan University of Science and Technology)
Mr
Qingduan Meng
(Henan University of Science and Technology)
Mr
Chunguang Li
(Institute of Physics, Chinese Academy of Sciences)
Ms
Xinran Shan
(Technical Institute of Physics and Chemistry Chinese Academy of Sciences)
Prof.
Liang Sun
(Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China)
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