A novel miniaturized sext‐band bandstop filter based on tree‐shaped branches loaded asymmetric multimode resonators

Abstract The working mechanism of suggested tunable bandstop filtered with asymmetrical multiple‐mode resonator equipped with tree‐shape branches is described in this letter. Because of the established degree of freedom, the suggested bandstop filters’ (BSFs) centre frequencies may be modified based...

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Bibliographic Details
Main Authors: Jie Luo, Guangxu Zhao, Zhongxi Sheng, Shanshan Gao
Format: Article
Language:English
Published: Wiley 2023-04-01
Series:Electronics Letters
Subjects:
Online Access:https://doi.org/10.1049/ell2.12801
Description
Summary:Abstract The working mechanism of suggested tunable bandstop filtered with asymmetrical multiple‐mode resonator equipped with tree‐shape branches is described in this letter. Because of the established degree of freedom, the suggested bandstop filters’ (BSFs) centre frequencies may be modified based on the design approach. Meanwhile, the suggested BSFs have small dimensions and abrupt roll‐off skirts for transition bands. A technology demonstration filter with six stopbands placed at 1.91/2.38/3.54/5.19/5.79/6.85 GHz was constructed to verify the design and analyses. It is found that the measurement of a filter is consistent with the comparison of simulation data, which indicates that the proposed structure is an optional approach for BSF design. The filter proposed can be applied in the field of communication, information and coal mine automation.
ISSN:0013-5194
1350-911X