Design of microstrip quint-band lowpass–bandpass filters with flexible passband allocation

Chia Lian Wu, Wen Hua Tu

研究成果: 雜誌貢獻期刊論文同行評審

摘要

In this paper, newly proposed microstrip quint-band lowpass–bandpass filters are presented. The lowpass filter structure comprises a meandered transmission line and modified T-shaped resonators. Based on such an lowpass filter (LPF) structure, a quad-band λ/4 inductively-coupled dual-mode stub-loaded stepped impedance resonators BPF with one pair of a coupled I/O feeding line are parallelled on both sides of LPF to construct a quint-band lowpass–bandpass filter. By incorporating the parallel I/O coupled line and utilising multiple coupling paths, four bandpass bands can be fully controlled and designed independently. Specially, two distinct types of bandpass filters with different generating mechanisms are investigated and then combined to provide the quad-band responses. To validate the design concept, two types of quint-band lowpass–bandpass filters are designed, fabricated, and tested, where simulation results agree well with measurement results.

原文???core.languages.en_GB???
頁(從 - 到)378-390
頁數13
期刊IET Microwaves, Antennas and Propagation
16
發行號6
DOIs
出版狀態已出版 - 5月 2022

指紋

深入研究「Design of microstrip quint-band lowpass–bandpass filters with flexible passband allocation」主題。共同形成了獨特的指紋。

引用此