具有宽阻带的高选择性多级组合滤波器

The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI:10.1109/MMWCST.2012.6238207

Mei-juan Xu, Ziqiang Xu, Kang Chen, Xu Cong-yu, Fu Bo

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引用次数: 0

摘要

介绍了一种基于多层低温共烧陶瓷(LTCC)技术的紧凑型组合滤波器。根据组合理论和全波电磁对比仿真，设计并制作了一种工作在2.3GHz-2.75GHz的滤波器，其芯片尺寸为1812(4.5mm × 3.2mm × 1.5mm)。在高侧裙摆处分别产生3.3GHz、5.2GHz、5.7GHz三个传输零点的宽阻带，以抑制干扰频率。通带插入损耗小于2dB。测量结果证明了所提出设计的可行性。

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A high-selectivity multistage combline filter with wide stop-band

This paper demonstrates a compact combline filter based on multilayer Low Temperature Co-fired Ceramic (LTCC) technology. According to the combline theory and full-wave electro-magnetic (EM) comparing simulation, a filter operates at 2.3GHz-2.75GHz with dimension of chip-size 1812(4.5mm × 3.2mm × 1.5mm) is designed and fabricated. It generates a wide stop-band with three transmission zeros at the high-side skirt at 3.3GHz, 5.2GHz, 5.7GHz respectively to reject interferential frequencies. The passband insertion loss is less than 2dB. The measured results evidence the feasibility of the proposed design.

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The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology

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