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
收藏
页码：21 / 30
页数：10
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