电子元件与材料Issue(12)：68-71,4.DOI:10.14106/j.cnki.1001-2028.2015.12.017
高性能电容加载LTCC带通滤波器的研究
Research of high-performance capacitor-loaded LTCC bandpass filter
摘要
Abstract
A new method of realizing high-performance capacitor-loaded bandpass filter based on LTCC technology was proposed. By loading capacitance at both ends of the strip line, the resonator achieved miniaturization. At the same time, through the cross coupling, two transmission zeros were introduced to realize the steep attenuation of the side-band, which also greatly improved the stopband attenuation of the filter. Then the model was optimized by the 3D simulation software HFSS. The measured results match well with the simulation results. The center frequency is 4.75 GHz with the bandwidth of 500 MHz, the stopband attenuation is better than 35 dB from 2.6 GHz to 4.1 GHz and 5.4 GHz to 6.9 GHz, size is only 3.2 mm × 2.5 mm × 1.5 mm.关键词
带通滤波器/电容加载/传输零点/LTCC/带状线/高阻带抑制Key words
bandpass filter/capacitor-loaded/transmission zero/LTCC/strip line/high stopband suppression分类
信息技术与安全科学引用本文复制引用
乔冬春,戴永胜..高性能电容加载LTCC带通滤波器的研究[J].电子元件与材料,2015,(12):68-71,4.基金项目
国家重点基础研究发展“973”计划项目资助（No.2009CB320201）；国家国防重点实验室基金项目资助 （）
