A Miniaturized Multi-layer Lowpass Filter for Microwave Application

摘要：

This paper presents a miniaturized multi-layer lowpass filter with sharp roll off suppression rate beyond the passband realized by low temperature co-fired ceramic (LTCC) technology for microwave application. By improving the prototype filter structure, three transmission zeros can be introduced to achieve sharp suppression rate. The proposed filter is designed with a cut-off frequency of 1.40GHz and the measured insertion loss is less than 0.6dB. The attenuation is less than -40 dB above 1.6GHz, and the bandwidth between the cutoff frequency and 1.6 GHz is only 200MHz. The three transmission zeros are obtained at 1.63GHz, 1.86GHz, 2.6GHz respectively. Due to the multi-layer structure, the size of this miniaturized filter is 3.2mm*2mm*1.41mm. This paper proves that the proposed filter is suitable for microwave application.

作者: Zhao Yingbo Li Yuejin Xing Mengjiang

作者单位: School of Microelectronics, Xidian University No.2 Taibai South Road, Xi’an, Shaanxi Prov., P.R.China

会议类型: 国际会议

会议名称: 2010 11th International Conference on Electronic Packaging Technology & High Density Packaging(2010 电子封装技术与高密度封装国际会议)

会议地点: 西安

会议语种:英文

页码: 856-859

在线出版日期: 2010-08-16（万方平台首次上网日期，不代表论文的发表时间）