华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (10): 156-161.
• 创刊五十周年纪念专辑 • 上一篇 下一篇
褚庆昕 梁启新
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国家自然科学基金资助项目(U0635004 )
Chu Qing-xin Liang Qi-xin
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摘要: 设计了一种新型2.45GHz 含螺旋传输线结构的准椭圆LTCC 低通滤波器,给出了带外传输有限零点的解析公式.针对实际结构中的螺旋传输线的寄生搞合效应,修正了该滤波器的等效电路,使仿真等效电路得到的散射参数曲线与测量结果相互吻合.测量结果表明,该低通滤波器性能良好,达到了指标要求.
关键词: 低温共烧陶瓷, 螺旋传输线, 低通滤波器, 准椭圆滤波器
Abstract:
This paper presents a novel2. 45 GHz quasi-elliptic low-temperature co-fired ceramic (LTCC) low-pass filter with spiral transmission lines , and proposes the analytical equation to determine an positions of the transmission zeros at the rejection area. By considering the parasitic coupling effect of spiral transmission lines in the actual LTCC structure , the equivalent circuit of the filter is modified , which enables the simulated scattering parameter curves of the equivalent circuit to accord well with the measured ones. It is indicated by measurement that the proposed low-pass filter is of good perfo 口nance and meets the requirements of application well.
Key words: low-temperature co-fired ceramic, spiral transmission line, low-pass filter, quasi-elliptic filter
褚庆昕 梁启新. 一种新型2.45 GHz 准椭圆LTCC 低通滤波器[J]. 华南理工大学学报(自然科学版), 2007, 35(10): 156-161.
Chu Qing-xin Liang Qi-xin. A Novel 2.45 GHz Quasi-Elliptic LTCC Low-Pass Filter[J]. Journal of South China University of Technology (Natural Science Edition), 2007, 35(10): 156-161.
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