| 单槽双频微波带通滤波器设计与实现 |
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| 引用本文： | 汪丽萍,郭辉萍,蔡文锋.单槽双频微波带通滤波器设计与实现[J].通信技术,2010,43(8):255-257. |
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| 作者姓名： | 汪丽萍 郭辉萍 蔡文锋 |
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| 作者单位： | 苏州大学,电子信息学院,江苏,苏州,215006 |
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| 摘 要： | 在方形贴片上采用单槽线代替相互正交双槽线的方法设计出一款结构简单、紧凑的双频段带通滤波器。详细讨论了滤波器结构参数对滤波器性能的影响,并以2.45/5.2GHz双通带滤波器的设计为例,通过仿真优化得到了各结构参数,制作了相应的样品。测试结果表明：该滤波器在2.45GHz通带内回波损耗为20dB,通带内最小插损为0.9dB,相对带宽为10%;5.2GHz通带内回波损耗33.6dB,通带内最小插损为0.37dB,相对带宽为13.4%,其总体尺寸比文献中正交双槽线结构的滤波器缩小48%。
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| 关 键 词： | 双通带 带通滤波器 单槽线 紧凑型 |
Design and Implementation Simple and Compact Dual-Band Bandpass Filter Using Slot Patch Resonator |
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| WANG Li-ping,GUO Hui-ping,CAI Wen-feng.Design and Implementation Simple and Compact Dual-Band Bandpass Filter Using Slot Patch Resonator[J].Communications Technology,2010,43(8):255-257. |
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| Authors: | WANG Li-ping GUO Hui-ping CAI Wen-feng |
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| Affiliation: | (School of Electronic and Information Engineering, Soochow University, Suzhou Jiangsu 215006, China) |
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| Abstract: | A new type dual-band BPF using a single slotted patch resonator （SPR） is proposed. The slot tilted at 45° is embedded in the center of λ /4 patch resonator for generating the second passband, which is determined by the slot length and width. The effects of the proposed filter structure parameters are studied in detail. With simulation software, a dual-bandpass filter operating at 2.45/5.2 GHz is obtained. As compared with the conventional dual-band BPF with cross-slotted structure, the dual-bandpass BPF could achieve a size reduction of 48%. |
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| Keywords: | dual band bandpass filter single slotted compact size |
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