COMPACT MICROSTRIP BANDPASS FILTER WITH MULTISPURIOUS SUPPRESSION

被引：25

作者：

Wu, H. -W. ^{[1
]}

Liu, S. -K. ^{[2
]}

Weng, M. -H. ^{[3
]}

Hung, C. -H. ^{[2
]}

机构：

[1] Kun Shan Univ, Dept Comp & Commun, Yongkang City 710, Tainan County, Taiwan

[2] Natl Kaohsiung Univ Appl Sci, Inst Photon & Commun, Kaohsiung 807, Taiwan

[3] Metal Ind Res & Dev Ctr, Med Devices & Optoelect Equipment Dept, Kaohsiung 82151, Taiwan

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2010年 / 107卷

关键词：

STEPPED-IMPEDANCE RESONATORS;

D O I：

10.2528/PIER10061601

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 compact microstrip bandpass filter (BPF) with multispurious suppression is presented. The filter consists of two coupled half-wavelength stepped impedance resonators (SIRs) and tapped input/output (I/O) lines. With tuning the impedance ratio (K) and length ratio (α) of SIRs, a very wide stopband can be easily achieved. The filter is designed at 2.4GHz (f0) with a wide stopband to 20GHz (8.16f0) and an average rejection level better than 25dB. This study provides a simple and effective method to achieve a filter with very wide stopband and compact circuit size simultaneously. Good agreement between the full-wave electromagnetic (EM) simulation and measurement is compared.

引用

页码：21 / 30

页数：10

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