收稿日期: 2009-07-01
修回日期: 2009-07-16
网络出版日期: 2010-06-25
基金资助
国家自然科学基金重点项目(U0635004); 广东省自然科学基金资助项目(60571056)
Design of Compact Dual-Band Bandpass Filter
Received date: 2009-07-01
Revised date: 2009-07-16
Online published: 2010-06-25
Supported by
国家自然科学基金重点项目(U0635004); 广东省自然科学基金资助项目(60571056)
褚庆昕 叶亮华 陈付昌 . 小型双频带通滤波器的设计[J]. 华南理工大学学报(自然科学版), 2010 , 38(6) : 7 -10 . DOI: 10.3969/j.issn.1000-565X.2010.06.002
Proposed in this paper is a compact dual-band filter based on the combined resonators,in which the two central passband frequencies and bandwidths are all tunable.The filter is composed of two sets of l/4 microstrip resonators that produce two different passbands.By adjusting the coupled spacing between the adjacent resonators in each set,the bandwidth for either the lower or the upper passband can be independently adjusted.Moreover,a dual-band filter operating at 2.4 and 5.2GHz is designed and manufactured.The measurement results basically accord with the simulation ones,which validates the effectiveness of the proposed design.
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