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作 者:ZHANG Jin-ling ZHANG Hong-xin LU Ying-hua ZHANG Li-kun
机构地区:[1]School of Telecommunication Engineering, Beijing University of Posts and Telecommunications [2]Translation Department
出 处:《The Journal of China Universities of Posts and Telecommunications》2013年第4期112-115,共4页中国邮电高校学报(英文版)
基 金:supported by the National Natural Science Foundation of China (61171051, 61202399, 61072136)
摘 要:A kind of dual-band-stop filter with an unsymmetrical T-shape defected ground structure (DGS) is proposed. The filter has two band gap centers at 4.9 GHz and 7.35 GHz, respectively, where the two centre frequencies are just the second and third harmonics 2.45 GHz. The filters with high band-stop performance and wideband spurious suppression can be achieved by cascading miniaturized unsymmetrical T-shape DGS. The attenuation of three-cascaded T-shape DGS filter is 30.77 dB at 4.9 GHz and 17.96 dB at 7.35 GHz respectively. The above experimental results are in good agreement with the simulation results, especially for the third harmonic.A kind of dual-band-stop filter with an unsymmetrical T-shape defected ground structure (DGS) is proposed. The filter has two band gap centers at 4.9 GHz and 7.35 GHz, respectively, where the two centre frequencies are just the second and third harmonics 2.45 GHz. The filters with high band-stop performance and wideband spurious suppression can be achieved by cascading miniaturized unsymmetrical T-shape DGS. The attenuation of three-cascaded T-shape DGS filter is 30.77 dB at 4.9 GHz and 17.96 dB at 7.35 GHz respectively. The above experimental results are in good agreement with the simulation results, especially for the third harmonic.
关 键 词:DGS band-stop filter dual-resonant characteristics unsymmetrical T-shape
分 类 号:TN713.5[电子电信—电路与系统] TN914.3
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