A NOVEL AND COMPACT LOW-PASS QUASI-ELLIPTIC FILTER USING HYBRID MICROSTRIP/CPW STRUCTURE

被引：3
|
作者：
Chen, H. [1 ]
Zhang, Y. -X. [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 610054, Peoples R China
来源：
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2008年 / 22卷 / 17-18期
关键词：
D O I：
10.1163/156939308787543714
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 novel and compact lowpass quasi-elliptic filter with harmonic-suppressed, sharp-rejection slope, wide and deep stop-band attenuation properties is presented. The filter is composed of CPW short-circuited resonators at the bottom of substrate and microstrip shunt open-circuited resonators at the top of substrate. Based on this hybrid microstrip/CPW structure, the LPF with excellent electrical performances is simulated and optimized by the momentum of method (MoM). A demonstration filter with 3dB cutoff frequency at 3.6 GHz is designed, fabricated and measured. Measured results exhibit a good low-pass performance, including a low loss in the passband from 0.2 to 3.4 GHz, and wide and deep attenuation in the stopband from 4.2 to 16 GHz.
引用
收藏
页码：2347 / 2353
页数：7
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