A tri-band bandpass filter with wide stopband using asymmetric stub-loaded resonators

Siang Wen Lan; Min Hang Weng; Shoou Jinn Chang; Cheng Yuan Hung; Shih Kun Liu

doi:10.1109/LMWC.2014.2365739

A tri-band bandpass filter with wide stopband using asymmetric stub-loaded resonators

Siang Wen Lan, Min Hang Weng, Shoou Jinn Chang, Cheng Yuan Hung, Shih Kun Liu

微電子工程研究所

研究成果: Article › 同行評審

57 引文斯高帕斯（Scopus）

摘要

This letter presents a tri-band bandpass filter (BPF) with a wide stopband using asymmetric stub-loaded resonators (ASLR). A tri-band filter sample was fabricated by using two ASLRs with coupled I/O ports. By properly tuning the electrical length ratios of the ASLRs (α and γ), three passbands can be designed at 1.4, 2.4, and 3.5 GHz. The harmonic responses are suppressed effectively by forming an uncoupled section at the end of the ASLRs, and the stopband region is formed from 3.7 to 7 GHz with a rejection level of 30 dB. The measured results of the fabricated tri-band BPF exhibit good agreement with simulated results.

原文	English
文章編號	6948284
頁（從 - 到）	19-21
頁數	3
期刊	IEEE Microwave and Wireless Components Letters
卷	25
發行號	1
DOIs	https://doi.org/10.1109/LMWC.2014.2365739
出版狀態	Published - 2015 1月 1

All Science Journal Classification (ASJC) codes

凝聚態物理學
電氣與電子工程

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10.1109/LMWC.2014.2365739

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引用此

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abstract = "This letter presents a tri-band bandpass filter (BPF) with a wide stopband using asymmetric stub-loaded resonators (ASLR). A tri-band filter sample was fabricated by using two ASLRs with coupled I/O ports. By properly tuning the electrical length ratios of the ASLRs (α and γ), three passbands can be designed at 1.4, 2.4, and 3.5 GHz. The harmonic responses are suppressed effectively by forming an uncoupled section at the end of the ASLRs, and the stopband region is formed from 3.7 to 7 GHz with a rejection level of 30 dB. The measured results of the fabricated tri-band BPF exhibit good agreement with simulated results.",

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A tri-band bandpass filter with wide stopband using asymmetric stub-loaded resonators

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